Publications

• T. Kusserow, N. Dharmarasu, H. Hillmer,  Comprehensive Microsystems fundamentals, technology and applications , Elsevier publishing house, (2024)
• R. Donatiello, M. S. Q. Iskhandar, Md. K. Hasan, Ph. Kästner, S. Baby, B. Elsaka, D. Löber, G. Xu and H. Hillmer: “Improved clear view by irregular apertures in MEMS smart glasses: Concept, Implementation, Characterization and Fabrication”, Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), ISBN No. 978-3-87480-388-5, eBook: eISBN 978-3-87480-389-2,  Vol. 80, (2024)
• M. H. Qasim, J. Chen, M. S. Q. Iskhandar, M. K. Hasan, S. Baby, B. Elsaka, D. Löber, G. Xu, and H. Hillmer „ Advancements in Surface Modification and Coloring Technologies for MEMS-Based Smart Windows:  Ultra-Thin Highly Absorbing Films and C-V Measurements of Smart Glass as Sustainable Energy Solutions”,  Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), ISBN 978-3-87480-385-4,  Vol. 79, pp. 336-372, (2023)
• M. K. Hasan, S. Liebermann, M. S. Q. Iskhandar, D. Löber, Q. Li, G. Xu, and H. Hillmer,   Personalized Light Steering in Buildings Utilizing 2D Actuation in MEMS Micromirror Arrays, Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), ISBN 978-3-87480-380-9,  Vol. 78, pp. 217-237, (2022)
• H. Hillmer, C. Woidt, A. Kobylinskiy, M. Kraus, A. Istock, M.S. Q. Iskhandar, R. Brunner and T. Kusserow, Monography “Optical Fiber Interferometric Sensors - New Production Methodologies and Novel Applications”, Chapter 1:  entitled “Miniaturized Interferometric Sensors with Spectral Tunability for Optical Fiber Technology - A Comparison of Size Requirements, Performance, and new Concepts”.  MDPI Publishing house, Basel, Eds: Maria de Fatima Domingues, Nélia J. Alberto, Paulo André, pp. 5-50, ISBN 978-3-0365-2249-4 (2022)

• K. Hasan, S. Baby, S. Muringakodan, A. Nandakumar, M. S. Q. Iskhandar, V. Hillmer, Q. Li, G. Xu, and H. Hillmer: Energy Saving and Amortization Time Simulation for a Model Room with MEMS Smart Glazing: Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), Vol. 77, pp. 163-188, ISBN 978-3-87480-369-4 (2021)

• S. Nazemroaya, M. Iskhandar, Md K. Hasan, Q. Li, H. Hillmer: Concepts for clear View through 3D Structured Surfaces of MEMS Smart Glass: Design, Implementation, Characterization and Validation. Jahrbuch Oberflächentechnik, Leuze Verlag, Band 76, S. 101-115, ISBN: 978-3-87480-364-9 (2020)

• M. S. Q. Iskhandar, B. Al-Qargholi, M. M. Khan, A. Tatzel, H. Luo, S. Nazemroaya, Q. Li, and H. Hillmer: Development of optical MEMS-based micromirror arrays for smart window applications: Implementation of subfield addressing and reliability measurements. Jahrbuch Oberflächentechnik, Leuze Verlag, Vol. 52, pp. 93-107, ISBN 978-3-87480-357-1 (2019)
• M. Khan, B. Al-Qargholi, M. Iskhandar, S. Akhundzada, A. Tatzel, H. Hillmer: MEMS-basierte Mikrospiegel-Arrays für eine aktive Lichtlenkung in intelligenten Fenstern. Jahrbuch Oberflächentechnik, Band 74, pp. 119-132 (2018)
• N. Götte, T. Kusserow, T. Winkler, C. Sarpe, L. Englert, D. Otto, T. Meinl, Y. Khan, B. Zielinski, A. Senftleben, M. Wollenhaupt, H. Hillmer, and T. Baumert: Temporally shaped femtosecond laser pulses for creation of functional sub-100 nm structures in dielectrics. K. König and A. Ostendorf (Ed.): Optically Induced Nanostructures: de Gruyter, Berlin, pp. 47-72 (2015)
• T. Meinl, N. Götte, Y. Khan, T. Kusserow, C. Sarpe, J. Köhler, M. Wollenhaupt, A. Senftleben, T. Baumert, H. Hillmer: Material Processing of Dielectrics via Temporally Shaped Femtosecond Laser Pulses as Direct Patterning Method for Nanophotonic Applications. P. Petkov, D. Tsiulyanu, W. Kulisch, C. Popov (Hrsg.): Nanoscience Advances in CBRN Agents Detection, Information and Energy Security: Springer Science+ Business Media, Dordrecht, pp. 29-34 (2015)
• S. Blom, J. Shrestha, N. Storch, J. Sonksen, H. Hilllmer: Technology for a Highly Sensitive Sensor System Based on Competing Modes in Semiconductor. P. Petkov, D. Tsiulyanu, W. Kulisch, C. Popov (Hrsg.): Nanoscience Advances in CBRN Agents Detection, Information and Energy Security: Springer Science+ Business Media, Dordrecht, pp. 409-414 (2015)
• A. Tatzel, B. Einwögerer, I. Bergmair, N. Worapattrakul, B. Khudhair, V. Viereck, H. Hillmer: Micromirror Arrays for Smart Personal Environments. P. Petkov, D. Tsiulyanu, W. Kulisch, C. Popov (Hrsg.): Nanoscience Advances in CBRN Agents Detection, Information and Energy Security: Springer Science+ Business Media, Dordrecht, pp. 505-510 (2015)
• H. Hillmer, T. Kusserow: Semiconductor lasers. F. Träger (Hrsg.): Springer Handbook of Lasers and Optics, 2nd ed. Springer Verlag, pp 757-792, (2012)
• A. Jäkel, Q. Li, V. Viereck, H. Hillmer: Active Windows for Daylight Guiding Applications. A. Voß (Hrsg.): Nanotechnology and Energy: Pan Stanford Publishing, pp. 72-80 (2012)
• C. Woidt, O. Setyawati, A. Albrecht, M. Engenhorst, V. Daneker, T. Woit, S. Wittzack, F. Köhler, H. H. Mai, M. Bartels and H. Hillmer: Micromachined Tunable Fabry-Pérot Filter Integrated into a Miniaturized Spectrometer for Low-Cost Applications. Johann Peter Reithmaier, Perica Paunovic, Wilhelm Kulisch, Cyril Popov, Plamen Petkov (Hrsg.): Nanotechnological Basis for Advanced Sensors: Springer, Dordrecht, pp. 537-541 (2011)
• T. Kusserow, M. Wulf, R. Zamora, B. Vengatesan, B. Witzigmann, H. Hillmer: Photonic Crystal Polarizer Element on InP/Air Membranes for Optical MEMS Applications. S. Chua; J. Teng; A. Danner (Hrsg.): Compound Semiconductor Photonics: Pan Stanford, Singapore, pp. 66-68 (2010)
• N. Dharmarasu, H. Hillmer: Compound semiconductors. Y.B. Gianchandani; O.  Tabata; H. Zappe (Hrsg.): Comprehensive Microsystems: Elsevier, Amsterdam, pp 25-51 (2008)
• H. Hillmer; S. Hansmann: Semiconductor lasers. F. Träger (Hrsg.): Springer Handbook of Lasers and Optics Springer Verlag, pp. 695-726 (2007)
• H. Hillmer; Y. Wang; T. Kusserow; S. Irmer; N. Dharmarasu; A. Hasse; M. Bartels; M. Schwarz; J. Börcsök, O. Mikami: Optoelectronic technologies for optical data communication in safety computer systems for process control and fabrication. T. Aven J.E. Vinnem (Hrsg.): Risk, reliability and Societal Safety: Taylor & Francis, pp.  377-384 (2007)
• M. Joodaki, H. Hillmer: RF SiGe HBTs: Some new trends for low cost, high performance and high power. S.B. Kobadze (Hrsg.): Solid State Electronics Research Advances: Nova Science Publishers, pp. 345-368 (2007)
• H. Hillmer; J. Salbeck: 8. Materialien der Optoelektronik - Grundlagen und Anwendungen. R. Kassing (Hrsg.): Bergmann/Schaefer: Lehrbuch der Experimentalphysik, Festkörper: Walter de Gruyter Verlag, pp. 707-820 (2005)
• H. Hillmer, F. Träger: Einführung in die Nanotechnologie. Telekommunikation Aktuell 58, pp. 1 (2004)
• H. Hillmer, R. Germann: Introductory article: Photonic Materials for Optical Communications. MRS Bulletin 28, pp. 340-344 (2003)
• H. Hillmer: Der Transistor - die Entwicklung von den Anfängen bis zu den frühen integrierten Schaltungen. Der Fernmeldeingenieur 54, pp. 1-107 (2000)
• R. Schatz, D. McDonald, H. Hillmer: Parameter extraction. G. Guekos (Hrsg.): Photonic Devices for Telecommunications: Springer Verlag, Heidelberg, pp. 235 (1999)
• H. Hillmer: (Hrsg.): Das Materialsystem AlGaInAs - Grundlagen, Eigenschaften und Anwendungen in der Photonik, Habilitationsschrift TH Darmstadt (1996)
• H. Hillmer: 3. Materialien für die optische Nachrichtentechnik und deren Eigenschaften, Halbleiter, Gläser, Polymere und LiNbO3. (Hrsg.): Optische Telekommunikationssysteme: Damm Verlag, pp. 63–108 (1996)
• H. Hillmer: Ambipolarer Ladungsträger-Transport in Halbleiter-Heterostrukturen. Universität Stuttgart, Diss. (1989)
• G. Mahler, T. Kuhn, A. Forchel, H. Hillmer: Optical decay and spatial relaxation. H. Haug (Hrsg.): Nonlinear optical properties of semiconductors: Academic Press, pp.  159 (1988)

• A. Kobylinskiy       OPN Optics    Dec 2024   accepted
• B. Elsaka, X. Yang, P. Kästner, K. Dingel, B. Sick, P. Lehmann, S.Y. Buhmann and H. Hillmer, “Casimir Effect in MEMS: Materials, Geometries, and Metrologies - A Review”, Materials 17, 3393 (2024). doi.org/10.3390/ma17143393
• L. Werner, E. Förster, H. Hillmer and R. Brunner, “Unlocking the potential of extreme hyperchromats: pushing the limits of axial color splitting”, SPIE Proceedings 13003, Fibre Lasers and Glass Photonics, 130030M (2024).  https://doi.org/10.1117/12.3014332
• A. Kobylinski, X. Uwurukundo, H. Hillmer and R. Brunner, “Tailored detection efficiency for linear variable filter-based sensors: applying simulation models of spectral characteristics in optical design”, Journal of the Optical Society of America A, Vol. 41, pp 1573-80, (2024)
• Md. Kamrul Hasan, M.S.Q. Iskhandar, P. Kästner, S. Babay, R. Donatiello and H. Hillmer, “2D Actuatable Micromirror Arrays for Smart Windows: Elimination of Stress Induced Cracks in Metallic MEMS Structures“, Technical Digest OMN 2024, p. 154-55, ISBN: 979-8-3503-8492-5, https://doi.org/10.1109/OMN61224.2024.10685278 ,IEEE (2024).
• Md. Kamrul Hasan, M.S.Q. Iskhandar, S.N. Juvale, S. Baby, J. Chen, and H. Hillmer, “Overcoming Pull-in Limitations of Optical MEMS Based Micromirror Arrays Using Structured Bottom Electrodes”,  Technical Digest OMN 2024, p. 176-77, ISBN: 979-8-3503-8492-5 , https://doi.org/10.1109/OMN61224.2024.10685258 ,IEEE (2024).
• J. Chen, X. Yang, Md. Kamrul Hasan, M.S.Q. Iskhandar, R. Donatiello and H. Hillmer, “Micromirror Arrays for Light Steering Smart Window Applications: Achieving Larger Spans of Opening Angles”, Technical Digest OMN 2024, p. 154-55, ISBN: 979-8-3503-8492-5 , https://doi.org/10.1109/OMN61224.2024.10685262 ,IEEE (2024).
• X. Yang, J. Chen, M.S.Q. Iskhandar, M.H. Qasim, G. Xu, and H. Hillmer“Investigation on Bistable Closing Behaviors of Metallic MOEMS Micromirrors with Various Initial Opening Angles”, Technical Digest OMN 2024, p. 174-75, ISBN: 979-8-3503-8492-5, https://doi.org/10.1109/OMN61224.2024.10685295 , IEEE (2024).
• R. Donatiello, P. Kästner, Md. Kamrul Hasan, B. Elsaka, A. Chavda and H. Hillmer, “Recent Progress in Clear View Improvement through MEMS Smart Glasses”, Technical Digest OMN 2024, p. 134-35, ISBN: 979-8-3503-8492-5, https://doi.org/10.1109/OMN61224.2024.10685273 , IEEE (2024).
• P. Kästner, H. Ur Rehman, R. Donatiello, B. Elsaka, Md Kamrul Hasan, and H. Hillmer, “Ring-shaped MEMS Shutter Arrays for Interference Microscopy: Designs, Fabrication, Characterization“, Technical Digest OMN 2024, p. 138-39, ISBN: 979-8-3503-8492-5, https://doi.org/10.1109/OMN61224.2024.10685244 ,IEEE (2024).
• B. Elsaka, P. Kästner, Y. Hamarneh, E. Käkel, R. Donatiello and H. Hillmer, ”Casimir Forces leading to 3D self-assembled paired metallic microshutters”, Technical Digest OMN 2024, p. 136-37,ISBN: 979-8-3503-8492-5, https://doi.org/10.1109/OMN61224.2024.10685251 , IEEE (2024).
• M. Künne, T. Kusserow, B. Witzigmann and H. Hillmer, ”Modifying the Complex Refractive Index of Thin- Films for Nanooptical Applications”, Technical Digest OMN 2024, p. 168-69, ISBN: 979-8-3503-8492-5, https://doi.org/10.1109/OMN61224.2024.10685281 ,IEEE (2024).
• S. Liu, P. Kästner, R. Donatiello, A. Shrivastava, M. Smolarczyk, M.S.Q. Iskhandar, M.K. Hasan, G. Caruso, J. Chen, B. Elsaka, S. Baby, D. Löber, T. Kusserow, J. Adam and H. Hillmer, “State-of-the-art materials used in MEMS micromirror arrays for photonic applications“  Photonics, 11, 253, https://doi.org/10.3390/photonics11030253 (2024)
• D. Löber, M.D.K. Hasan, S. Liebermann, M.S.Q. Iskhandar, S. Baby, J. Chen, E. Farrag, N. Ahmed, S. Liu, B. Elsaka. M.H. Qasim, G. Xu and H. Hillmer, “MEMS Smart Glass for Personalized Lighting and Energy Management in Buildings: Working Principles, Characterization, Active Light Steering, Thermal Management, Energy Saving Considering Different Locations on Earth, Comparison of Different Smart Glass Technologies”. Journal of Building Design and Environment, 2023;2(2):22962. https://doi.org/10.37155/2811-0730-0201-14 (2023)
• B. Elsaka, P. Kästner, E. Käkel, R. Donatiello, and H. Hillmer, Investigation of the influence of sublayer thickness on pairing of metallic MEMS shutter blades, (invited), Applied Science, 13, 1538, https://doi.org/10.3390/app13031538 (2023)
• L. Schmidt, H. Hillmer, and R. Brunner: “Tailoring Wavelength-Selective Diffraction Efficiency Using Triple-Layer Double-Relief Blazed Gratings Incorporating Materials with Intersecting Dispersion Curves,” Photonics 10, 1116, https://doi.org/10.3390/photonics10101116, Cover: https://www.mdpi.com/2304-6732/10/10 (2023)
• M. Knoblich,  X. Uwurukundo, D. Stumpf, M. Kraus, H. Hillmer, and R. Brunner:  „Annular Gray Tone Lithography for the Fabrication of Rotationally Symmetric Continuous Relief Meso- and Microscale Optical Elements”. Photonics 10, 1000, https://doi.org/10.3390/photonics10091000, Cover: https://www.mdpi.com/2304-6732/10/9 (2023)
• E. Förster, S. Cumme, M. Kraus, H.-J. Dobschal, H. Hillmer, and R. Brunner: Catadioptric sensor concept with interlaced beam paths for imaging and pinpoint spectroscopy, Applied Optics, Vol. 62, pp. 5170-5178, https://doi.org/10.1364/AO.492506 (2023)
• L. Werner, E. Förster, M. Kraus, H. Hillmer and R.  Brunner, Extreme Refractive-, Diffractive- and Hybrid-Hyperchromats: Minimizing the Equivalent Abbe Number of a Two-Lens System, Photonics 2023, 10, 556. https://doi.org/10.3390/photonics10050556 (2023)
• C. Johannes, S. Macher, L. Niklaus, M. Schott, H. Hillmer, M. Hartung, and H. P. Heim, “Flexible Electrochromic Device on Polycarbonate Substrate with PEDOT:PSS and Color-Neutral TiO₂ as Ion Storage Layer”, Polymers, 15, 1982, https://doi.org/10.3390/polym15091982 (2023)
• X. Yang, P. Kästner, E. Käkel, M. Smolarczyk, S. Liu, Q. Li, and H. Hillmer, Study of Dynamics in Metallic MEMS Cantilevers - Pull-in Voltage and Actuation Speed, Applied Science  13, 1118, https://doi.org/10.3390/app13021118 (2023)
• M. K. Hasan, S. Liebermann, M. S. Q. Iskhandar, D. Löber, Q. Li, G. Xu, and H. Hillmer,   Personalized Light Steering in Buildings Utilizing 2D Actuation in MEMS Micromirror Arrays, Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), ISBN 978-3-87480-380-9,  Vol. 78, pp. 217-237, (2022)
• A. Kobylinskiy, L. Werner, M. Kraus, H. Hillmer and R. Brunner, Folded beam path architecture for highly efficient filter-based spectral sensors (Spotlight on Optics), Applied Optics, Vol. 61, No. 33, 9996 (2022), doi.org/10.1364/AO.475260
• E. Förster, D. Stumpf, L. Werner, H. Hillmer, and R. Brunner, Hyperchromatic lens doublets with extremely small equivalent Abbe-number employing diffractive elements and refractive materials with exceptional properties, J. Opt. Soc. America A Vol. 39, No. 10, pp 1992-2000 (2022)  doi.org/10.1364/JOSAA.473546
• S. Akhundzada, X. Yang, J. Fiedler, E. Käkel, B. Al-Qargholi, S. Buhmann, A. Ehresmann, and H. Hillmer: A novel approach to construct self-assembled 3D MEMS arrays, Microsystem Technologies, 28, 2139-2148 (2022),  https://doi.org/10.1007/s00542-022-05361-1 
• M. Kraus, T. Hönle, E. Förster, P. Sadlowski, D. Stumpf, A. Schöneberger, B. Laue, R. Brüning, H. Hillmer and R. Brunner, Compact double-pass Echelle spectrometer employing a crossed diffraction grating, (Editor’s Pick) Optics Express, Vol. 30, 31336-31353 (2022), DOI: 10.1364/OE.465208
• M. Knoblich, M. Kraus, D. Stumpf, L. Werner, H. Hillmer and R. Brunner: Variable ring-shaped lithography for the fabrication of meso- and micro-scale binary optical elements, Applied Optics, Vol 61, 2049-2059, (2022), DOI: 10.1364/AO.451395
• B. Kaban, S. Bagatur, M. Soter, H. Hillmer, T. Fuhrmann-Lieker: Reversible Photo-Induced Reshaping of Imprinted Microstructures Using a Low Molecular Azo Dye. Polymers, 14, 586,  DOI: 10.3390/polym14030586 (2022)
• M. Rothenburger, M. Horn, X. Yu, G. Schulze, K. Muyllaert, P. Zacharias, L. Brabetz, H. Hillmer: Multilevel battery converter with cascaded H-bridges on cell level-battery management system or a renewed attempt for Power Electronic Building Blocks, Technical Digest 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe), Technical digest p. 2383-91,   ISBN: 978-9-0758-1539-9 (2022)
• M. Rothenburger, H. Hillmer, T. Scholl, G. Schulze, K. Muyllaert: Scalable battery cell cascaded H-bridge converter, Technical Digest, pp. 95-100   Power and Energy Student Summit/Power Electronics Student Summit (PESS/PELSS 2022), ISBN: 978-3-8007-6013-8 (2022)
• K. Hasan, S. Baby, S. Muringakodan, A. Nandakumar, M. S. Q. Iskhandar, V. Hillmer, Q. Li, G. Xu, and H. Hillmer: Energy Saving and Amortization Time Simulation for a Model Room with MEMS Smart Glazing. Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), ISBN 978-3-87480-369-4, pp. 163-188, Vol. 77, (2021)
• A. Kobylinskiy, M. Kraus, X. Uwurukundo. H. Hillmer and R. Brunner: Simple but effective-strong efficiency boost for a linear variable filter-based spectrometer.Journal of Optical Microsystems Vol. 1(4), pp. 044501-1 - 044501-14, DOI: 10.1117/1.JOM.1.4.044501 (2021)
• W. Janik, A. Zygmanowski, H. Wolff and H. Hillmer: A first proof of-of-concept for the non-invasive, time-efficient measurement of the plasma sodium concentration for individualized dialysis, The International Journal of Artificial Organs, Vol. 45, Issue 11, pp 889-897,  DOI: 10.1177/03913988221120831, (2022)
• M. Künne, S. Hagemeier, E. Käkel, H. Hillmer und P. Lehmann: Investigation of measurement data of low-coherence interferometry at tilted surfaces in the 3D spatial frequency domain, De Gruyter, tm – Technisches Messen; 88(S1): S65–S70, DOI: 10.1515/teme-2021-0051 (2021)
• H. Hillmer, C. Woidt, A. Kobylinskiy, M. Kraus, A. Istock, M.S. Q. Iskhandar, R. Brunner and T. Kusserow: Miniaturized Interferometric Sensors with Spectral Tunability for Optical Fiber Technology - A Comparison of Size Requirements, Performance, and new Concepts. Photonics, Vol. 8, 332, pp. 1-46, DOI:10.3390/photonics8080332 (2021)
• M.R. Amirzada, Q. Li and H. Hillmer: MEMS-based micromirror arrays on flexible substrate for curvilinear surfaces. Opt. Quant. Electron. 53, 210, DOI: 10.1007/s11082-021-02846-7 (2021)
• H. Hillmer, C. Woidt, A. Istock, A. Kobylinskiy, D.T. Nguyen, N. Ahmed, R. Brunner and T. Kusserow: Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers. Nanomaterials, 11(1), 164, DOI: 10.3390/nano110101641 (2021)
• H. Hillmer, M.S.Q. Iskhandar, M.K. Hasan, S. Akhundzada, B. Al-Qargholi, A. Tatzel: MOEMS micromirror arrays in smart windows for daylight steering. J. Optical Microsystems, 1(1), 014502-1 - 014502-18 (2021),  DOI:10.1117/1.JOM.1.1.014502 
• N. Worapattrakul, A. Tatzel, V. Viereck, H. Hillmer: Planar Free-Standing Metal Layer Fabrication: Implementing Sub-Structures in Micromirror Arrays for Light Steering Applications. Micro and Nano Syst. Lett. Vol 8, 20, https://doi.org/10.1186/s40486-020-00124-x, (2020)
• S. Nazemroaya, M. Iskhandar, Md K. Hasan, Q. Li, H. Hillmer: Concepts for clear View through 3D Structured Surfaces of MEMS Smart Glass: Design, Implementation, Characterization and Validation. Jahrbuch Oberflächentechnik, Leuze Verlag,  (Yearbook surface technology, Leuze publishing house), ISBN: 978-3-87480-364-9,  Vol. 76, S. 101-115, (2020)
• D. Löber, S. Dey, B. Kaban, F. Roesler, M. Maurer, H. Hillmer, R. Pietschnig: 3D Micro/Nanopatterning of a Vinylferrocene Copolymer. Molecules, 25(10), 2438, (2020)
• A. Kobylinskiy, B. Laue, E. Förster, B. Höfer, Y. Shen, H. Hillmer, R. Brunner: Substantial increase in detection efficiency for filter array-based spectral sensors. (Editor's pick), Applied Optics, Vol. 59, pp. 2443-2451, (2020) DOI: 10.1364/AO.382714  
• M. Kraus, E. Förster, V. Bagusat, T. Hönle, X. Uwurkundo, P. Bohnert, R. Brüning, H. Hillmer, R. Brunner: Realization of a compact cross-grating spectrometer and validating experimental tests. Applied Optics, Vol. 59, No 5, pp. 1338-1346 (2020) , DOI: 10.1364/AO.379595 (2020)
• J. Meibaum, S. Krause, H. Hillmer, D. Marcelli, C. Strohhoefer: Identification and characterization of fluorescent substances in spent dialysis fluid. The International Journal of Artificial Organs, 43(9): pp. 579-586. (2020) doi:10.1177/0391398820901826
• F. Roesler, B. Kaban, D. Klintuch, U. Ha, C. Bruhn, H. Hillmer, R. Pietschnig: Tailoring Phospholes for Imprint of Fluorescent 3D Structures. European Journal of Inorganic Chemistry, 4820-4825 (2019)
• M. S. Q. Iskhandar, B. Al-Qargholi, M. M. Khan, A. Tatzel, H. Luo, S. Nazemroaya, Q. Li, and H. Hillmer: Development of optical MEMS-based micromirror arrays for smart window applications: Implementation of subfield addressing and reliability measurements. Jahrbuch Oberflächentechnik, Leuze Verlag (Yearbook surface technology, Leuze publishing house), ISBN 978-3-87480-357-1, Vol. 52, pp. 93-107.(2019)
• H. Wilke, N.M. Hoinka, T. Kusserow, T. Fuhrmann-Lieker, H. Hillmer: Determination of the saturation length and study of its effects in optical gain measurements of organic semiconductors using the variable stripe length method. Applied Physics Letters Vol.115  173301 pp.1-4, (2019)
• B. Allendorf, E. Käkel, U. Ha, S. Hagemeier, H. Hillmer, P. Lehmann: Adaptive high-resolution Linnik interferometry for 3D measurement of microparticles. Optics Letters Vol. 44, Issue 14, pp. 3550-3553 (2019)
• M. Smolarczyk, L. Jablonka, S. Reuter, H. Hillmer: Self-Aligned Molding Technology (SAMT) for Fabrication of 3D Structures with a Foldable Imprint Mold. Applied Nanoscience, 9(6), pp.1255-1263 (2019) doi 10.1007/s13204-019-01050-0
• V. Bagusat, M. Kraus, E. Förster, D. Thomae, T. Hönle, R. Brüning, H. Hillmer, R.  Brunner: Concept and optical design of a compact cross-grating spectrometer.  Journalof the Optical Society of America A, Vol. 36, Issue 3, pp. 345-352 (2019), DOI: 10.1364/JOSAA.36.000345
• M. Khan, B. Al-Qargholi, M. Iskhandar, S. Akhundzada, A. Tatzel, H. Hillmer: MEMS-basierte Mikrospiegel-Arrays für eine aktive Lichtlenkung in intelligenten Fenstern.  Jahrbuch Oberflächentechnik, Leuze Verlag (Yearbook surface technology, Leuze publishing house), Band 74, pp. 119-132, ISBN 978-3-87480-349-6 (2018)
• H. Hillmer, B. Al-Qargholi, M. M. Khan, N. Worapattrakul, H. Wilke, C. Woidt, A. Tatzel: Optical MEMS-based micromirror arrays for active light steering in smart windows. Japanese Journal of Applied Physics, Vol. 57, No. 8S2, 08PA07, pp. 1-13 (2018)
• J. Letnev, W. Hazenbiller, A. Osipowicz, A. Beglarian, H. Bouquet, G. Drexlin, F. Glück, J. Garbe, H. Hillmer, P. Marte, T. Thümmler, Ch. Weinheimer: Technical design and commissioning of a sensor net for fine-meshed measuring of the magnetic field at the KATRIN spectrometer. Journal of Instrumentation, Vol. 13, T08010 (2018) doi.org/10.1088/1748-0221/13/08/T08010
• Y. Shen, A. Istock, A. Zaman, C. Woidt, H. Hillmer: Fabrication and characterization of multi-stopband Fabry–Pérot filter array for nanospectrometers in the VIS range using SCIL nanoimprint technology. Applied Nanoscience, Vol. 8: Issue 6, pp. 1415–1425 (2018)
• U-M. Ha, B. Kaban, A. Tomita, K. Krekić, D. Klintuch, R. Pietschnig, A. Ehresmann, D. Holzinger, H. Hillmer: Multifunctional guest–host particles engineered by reversal nanoimprint lithography. Applied Nanoscience, Vol. 8: Issue 5, pp. 1161–1169 (2018)
• M. Taimoor, A. Alatawi, S. Reuter, H. Hillmer, T. Kusserow: Single-step inductively coupled plasma etching of sputtered Nb2O5/SiO2 multilayer stacks using chromium etch mask. Journal of Vacuum Science \& Technology A: Vacuum, Surfaces, and Films, Vol. 35, 4, Issue 4, pp 041302/1-5 (2017)
• Y. Saddeek, K. Saber, A. El-Maaref, H. Hillmer, H. Wilke, M. Abdelawwad: Spectroscopic properties and Judd-Ofelt analysis of Dy³⁺ ions in molybdenum borosilicate glasses. Journal of Luminescene Vol. 196, pp. 477-484 (2018)
• S. Reuter, M. Smolarczyk, A. Istock, U. Ha, O. Schneider, N. Worapattrakul, S.  Nazemroaya, H. Hoang, L. Gomer, F. Pilger, M. Maniak, H. Hillmer: Bending Properties of two- and three-dimensional-shaped nanoparticles fabricated via substrate conformal imprint lithography. Springer Science+Business Media Dordrecht, Journal of Nanoparticle Research 19: 184, pp. 1-13 (2017)
• N. Götte, T. Winkler, T. Meinl, T. Kusserow, B. Zielinski, C. Sarpe, A. Senftleben, H.  Hillmer, T. Baumert: Temporal Airy pulses for controlled high aspect ratio nanomachining of dielectrics. Optica Vol. 3, (4), pp. 389-395 (2016)
• D. T. Nguyen, M. Ababtain, I. Memon, A. Ullah, A. Istock, C. Woidt, W. Xie, P.  Lehmann, H. Hillmer: 3D nanoimprint for NIR Fabry-Pérot filter arrays: fabrication, characterization and comparison of different cavity designs. Applied Nanoscience Volume 6, Issue 8, pp. 1127-1135 (2016)
• V.R. Kolli, C. Woidt, H. Hillmer: Residual-layer-free 3D nanoimprint using hybrid soft templates. Microelectronic Engineering: Vol. 149, pp. 159-165 (2016)
• J.C. Shrestha, S. Blom, B. Witzigmann, H. Hillmer: Investigation of Relative Intensity Noise in Asymmetric External Cavity Semiconductor Laser Sensors: Influence of Dual-Line Spectral Separation and Linewidth Enhancement Factor. IEEE Sensors Journal: Vol. 15, pp. 6619-6624 (2015)
• V.R. Kolli, C. Woidt; H. Hillmer: Patterning of Polymer Arrays with Enhanced Aspect-Ratio Using Hybrid Substrate Conformal Imprint Lithography. In: Haider F. Abdul Amir, Alexander M. Korsunsky and Maria Mucha (Ed.): Advanced Materials Research: Vol. 1119, pp. 179-183 (2015)
• I. Memon, Y. Shen, A. Khan, C. Woidt, H. Hillmer: Highly uniform residual layers for arrays of 3D nanoimprinted cavities in Fabry-Pérot-filter-array-based nanospectrometers. Applied Nanoscience, Volume 6, Issue4, pp. 599-606 (2016)
• M.R. Amirzada, A. Tatzel, V. Viereck, H. Hillmer: Surface roughness analysis of SiO2 for PECVD, PVD and IBD on different substrates. Applied Nanoscience. Volume 6, Issue 2, pp. 215-222 (2016)
• A. Ullah, H. Wilke, I. Memon, Y. Shen; D. T. Nguyen, C. Woidt, H. Hillmer: Stress relaxation in dual ion beam sputtered Nb2O5 and SiO2 thin films: application in a Fabry–Pérot filter array with 3D nanoimprinted cavities. Journal of Micromechanics and Microengineering. Volume 25, pp. 055019 1-8 (2015)
• T. Fuhrmann-Lieker, J. Lambrecht, N. Hoinka, M. Kiurski, A. Wiske, G. Hagelstein, N. Yurttagül, M. Abdel-Awwad, H. Wilke, F. Messow, H. Hillmer, J. Salbeck: Optical amplification and stability of spiroquaterphenyl compunds and blends. Journal of the European Optical Society - Rapid publications. Vol. 10, pp. 15007 (2015)
• M. Abdel-Awwad, H. Luan, F. Messow, T. Kusserow, A. Wiske, A. Siebert, T.  Fuhrmann-Lieker, J. Salbeck, H. Hillmer: Optical amplification and photodegradation in Films of spiro-quaterphenyl and its derivatives. Journal of Luminescence. Vol. 156, pp. 47-54 (2015)
• C. Schmidt, M. Smolarczyk, L. Gomer, H. Hillmer, A. Ehresmann: Artificial sub-µm magnetic patterning by He⁺ ion bombardment through a mask fabricated by Ultraviolet NanoImprint Lithography (UV-NIL). Nuclear Inst. and Methods in Physics Research, B Volume 322, pp. 59-62 (2014)
• F. Messow, C. Welch, A. Eifert, W.C. Ang, N.S. Hoe, T. Kusserow, H. Hillmer: Deep single step vertical ICP-RIE etching of ion beam sputter deposited SiO₂/Si multilayer stacks. Micorelectron. Eng. Vol. 113, pp. 70-73 (2014)
• X. Wang, A. Albrecht, H.H. Mai, C. Woidt, T. Meinl, M. Hornung, M. Bartels, H.  Hillmer: High resolution 3D NanoImprint technology: template fabrication, application in Fabry-Perot-filter-array-based optical nanospectrometers.  Micorelectron. Eng. Volume 110, pp. 44-51 (2013)
• Y. Monnai, K. Altmann, C. Jansen, H. Hillmer, M. Koch, H. Shinoda: Terahertz beam focusing based and variable focusing using programmable diffraction gratings. Optics Express Volume. 21 Issue 2, pp. 2347-2354 (2013)
• Y. Monnai, K. Altmann, C. Jansen, M. Koch, H. Hillmer: Terahertz beam focusing based on plasmonic waveguide scattering. Applied Physics Letters, Volume 101, Issue 15, pp. 151116 1-3(2012)
• T. Kusserow, M. Wulf, R. Zamora, K. Kanwar, H. Hillmer: Processing of photonic crystals in InP membranes by focused ion beam milling and plasma etching.  Microelectronic Engineering, Volume 102, pp. 25-28 (2013)
• K. Schultz, A. Tatzel, N. Worapattrakul, C. Woidt, A. Jäkel, V. Viereck, H. Hillmer: Micro- and nano-scaled sensors and actuators for aerospace applications. IEEE Technical Digest INSS, E-ISBN 978-1-4673-1786-3/12 (2012)
• H. H. Mai, A. Albrecht, C. Woidt, X. Wang, V. Daneker, O. Setyawati, T. Woit, K.  Schultz, M. Bartels, H. Hillmer: 3D nanoimprinted Fabry-Pérot filter arrays and methodologies for optical characterization. Applied Physics B: Lasers and Optics, Volume 107, Issue 3, pp. 755-764 (2012)
• U. Akcakoca, B. Witzigmann, R. Zamora, T. Kusserow, H. Hillmer: Frequency domain analysis of modes in a photonic crystal micro-opto-electro-mechanical system with periodically arranged circular holes. Optical and Quantum Electronics, Volume 44, Issue 3-5, pp. 273-277 (2012)
• Y. Monnai, H. Shinoda, H. Hillmer: Focused terahertz radiation formed by coherently scattered surface plasmon polaritons from partially uncorrugated metal surfaces.  Applied Physics B: Lasers and Optics, Volume 104, Issue 4, pp. 913-917 (2011)
• Y. Monnai, H. Shinoda, A. Jäkel, V. Viereck, H. Hillmer: Terahertz Focus Steering Technique for Quasi-Optical Networked Sensing Applications. IEEE Technical Digest INSS xxxxxx (2011)
• Q. Li, A. Jäkel, V. Viereck and H. Hillmer: Design of self-assembling micromirror arrays for light guiding applications, Microsystem Technologies 16(5), 895-899 (2010)
• A. Albrecht, X. Wang, H. H. Mai, T. Schotzko, I. Memon, M. Bartels, M. Hornung, H. Hillmer: High vertical resolution 3D Nano-Imprint Technology and its application in optical nanosensors, Nonlinear Optics and Quantum Optics, Volume 43, pp. 339-353 (2012)
• O. Setyawati, M. Engenhorst, M. Bartels, V. Daneker, S. Wittzack, T. Woit, F.  Köhler, H. Hillmer: Characterization of dry etching of TiO2/SiO2 distributed Bragg reflectors for tunable optical sensor arrays. Journal of Micro/Nanolithography, MEMS, and MOEMS, Volume 9, No 04, pp. 041110 1-6 (2010)
• M. Ahmad, J. Sonksen, N. Storch, H. Krause, J. Shrestha, S. Blom, A. Pötzel, B.  Kudhair, H. Hillmer: Semiconductor laser-based sensors for intelligently networking sensing systems. IEEE Technical Digest INSS, ISBN 978-1-4244-7910-8, pp. 101-106 (2010),
• A. Albrecht, H. H. Mai, V. Daneker, X. Wang, S. Schudy, T. Woit, K. Schultz, C.  Woidt; O. Setyawati, F. Köhler, S. Wittzack, M. Engenhorst, M. Bartels, H.  Hillmer: Optical Characterization of High-resolution Optical Nanospectrometers for Networked Sensing Systems. IEEE Technical Digest INSS, ISBN 978-1-4244-7910-8, pp. 175-178 (2010)
• A. Jäkel, J. Clobes, Q. Li, V. Viereck, H. Hillmer: Integration of Actuable MEMS in Networked Sensing Systems. IEEE Technical Digest INSS, ISBN 978-1-4244-7910-8, pp. 61-64 (2010)
• X. Wang, A. Albrecht, S. Schudy, T. Woit, V. Daneker, K. Schultz, H. H. Mai, F.  Köhler, S. Wittzack, M. Bartels, H. Hillmer: High-resolution, Low-cost Microsensors for Networked Sensing Systems: Optical Nanospectrometers with Nanoimprinted Cavities of Filter Arrays. IEEE Technical Digest INSS, ISBN 978-1-4244-7910-8,

• pp. 171-174 (2010)

• R. Zamora, T. Kusserow, M. Wulf, K. Kanwar, B. Witzigmann, H. Hillmer: Structuring of 2D Photonic Crystal on InP Membranes as Polarizing Element for Optical MEMS Based Sensor Systems. IEEE Technical Digest INSS, ISBN 978-1-4244-7910-8,

• pp. 179-182 (2010)

• Q. Li, A. Jäkel, V. Viereck, H. Hillmer: Design of self-assembling micromirror arrays for light guiding applications. Microsystem Technologies, Volume 16, Issue 5, pp 895–899 (2009)
• V. Viereck, J. Ackermann, Q. Li, A. Jäkel, J. Schmid, H. Hillmer: Sun Glasses for Buildings based on Micro Mirror Arrays: Technology, Control by Networked Sensors and Scaling Potential (invited). IEEE Technical Digest INSS, pp. 135-139 (2008)
• H. Hillmer, V. Viereck, T. Kusserow, Y. Wang, S. Irmer, N. Dharmarasu, D. Todorov, A. Jäkel, Q. Li, A. Hasse, D. Bienhaus, M. Bartels: Nanophotonic devices and components: micromachined motion, fabrication, characterization, scaling potential and applications. Technical digest 3rd Shanghai International Nanotechnology Symposium 2007, pp. 245 (2007)
• H. Hillmer, Y. Wang, T. Kusserow, N. Dharmarasu, A. Hasse, O. Mikami, M. Bartels: Wavelength division multiplexing (WDM) for secure optical data communication in industrial computers, process control and fabrication systems. WSEAS Transactions on Communications 6, pp. 396 (2007)
• A. Kricke, M. Joodaki, N. Dharmarasu, G. Kompa, H. Hillmer: Quasi-monolithic integration of high-power GaN-based HEMTs for high-frequency applications. Semiconductor Science and Technology Volume 22, No 11, pp. 1245-1248 (2007)
• A. Hasse, S. Irmer, J. Daleiden, N. Dharmarasu, S. Hansmann, H. Hillmer: Wide continuous tuning range of 221nm by InP / air-gap vertical-cavity filters. Electronics Letters, Volume 42, Issue 17, pp. 974-975 (2006)
• H. Hillmer, S. Irmer, F. Römer, A. Hasse, J. Daleiden, C. Prott, S. Hansmann, M.  Strassner: MOEMS vertical-air-cavity filters are widely and continuously tunable around 1.55 microns. SPIE Newsroom 10.1117/2.1200601.0005, pp. 1-4 (2006)
• T. Scholz, T. Debski, W. Barth, F. Römer, H. Hillmer: A high-resolution optical study of cantilever heterostructure layer geometries. Journal of Micromechanics and Microengineering Volume16, No. 12, pp. 2765-2770 (2006)
• S. Irmer, K. Alex, J. Daleiden, I. Kommallein, M. Oliveira, F. Römer, A. Tarraf, H.  Hillmer: Surface micromachined optical low-cost all-air-gap filters based on stress-optimized Si3N4 layers. Journal of Micromechanics and Microengineering

• Volume 15, No.4, pp. 867-872 (2005)

• M. Joodaki, G. Kompa, H. Hillmer: Thermomechanical stress analysis and measurement in quasi-monolithic integration technology (QMIT). IEEE Transactions on device and material reliability, Volume 5, No.3, pp. 581-594 (2005)
• M. Joodaki, G. Kompa, H. Hillmer, R. Kassing: Heat transfer improvement in quasi-monolithic integration technology. Journal of Microlithography, Microfabrication, and Microsystems, Volume 4, pp. 33011/1-7 (2005)
• E. Ataro, C Prott, F. Römer, H. Hillmer: Tailored scaling: a possibility to improve the performance of ultra-wide continuously tunable photonic devices. Applied Physics B: Lasers and Optics, Volume79, Issue1, pp. 87-93 (2004)
• H. Hillmer: Periodische Nanostrukturen in der Photonik - Grundlagen, natürliche Vorbilder, Herstellung und Anwendungen in der hochbitratigen Kommunikationstechnik. Telekommunikation Aktuell 58, pp. 10-18 (2004)
• H. Hillmer, B. Klepser: Low-cost edge-emitting DFB laser arrays for DWDM communication systems implemented by bent and tilted waveguides. IEEE Journal of Quantum Electronics 40, pp. 1377-1383 (2004)
• H. Hillmer, F. Träger: Einführung in die Nanotechnologie. Telekommunikation Aktuell 58, pp. 1 (2004)
• H. Hillmer, C. Prott, F. Römer, S. Hansmann: Theoretical model calculations of long-haul edge-emitting communication lasers: comparison of fractally mixed, fine-pitched and continuously chirped DFB gratings. Semiconductor Science and Technology 19, pp. 939-945 (2004)
• A. Tarraf, F. Riemenschneider, M. Strassner, J. Daleiden, S. Irmer, H. Halbritter, H. Hillmer, P. Meissner: Continuously tunable 1.55-µm VCSEL implemented by precisely curved dielectric top DBR involving tailored stress. IEEE Phot. Technol. Lett. 16, pp .720-722 (2004)
• A. Tarraf, J. Daleiden, S. Irmer, D. Prasai, H. Hillmer: Stress investigation of PECVD dielectric layers for advanced optical MEMS. Journal of Micromechanics and Microengineering 14, pp. 317-323 (2004)
• J. Daleiden, A. Tarraf, S. Irmer, F. Römer, C. Prott, E. Ataro, M. Strassner, H. Hillmer: Wide and continuous wavelength tuning of microcavity devices for optoelectronic applications. Journal of Microlithography, Microfabrication, and Microsystems 2, pp. 265-274 (2003)
• J. Daleiden, H. Hillmer: Multiple air-gap filters and constricted mesa lasers - material processing meets the front of optical device technology. Applied Physics B: Lasers and Optics 76, pp. 821-832 (2003)
• H. Hillmer: Highlighting an interesting parallel between quantum electronics and quantum photonics (Letter to the Editor). MRS Bulletin 28, pp. 547 (2003)
• H. Hillmer, R. Germann: Introductory article: Photonic Materials for Optical Communications. MRS Bulletin 28, pp. 340–344 (2003)
• S. Irmer, J. Daleiden, V. Rangelov, C. Prott, F. Römer, M. Strassner, A. Tarraf, H. Hillmer: Ultra low biased widely continuously tunable fabry-Perot filter. IEEE Journal of Photonic Technologies Letters 15, pp. 434-436 (2003)
• M. Joodaki, G. Kompa, H. Hillmer: An enhanced quasi-monolithic integration technology for microwave and millimeter wave applications. IEEE Transactions on advanced packaging 26, pp. 402-409 (2003)
• C. Prott, F. Römer, E.O. Ataro, J. Daleiden, S. Irmer, A. Tarraf, H. Hillmer: Modeling of ultrawidely tunable vertical cavity air-gap filters and VCSELs. IEEE J. of Select. Topics in Quantum. Electron. 9, pp. 918-928 (2003)
• F. Römer, C. Prott, S. Irmer, J. Daleiden, A. Tarraf, H. Hillmer, M. Strassner: Tuning efficiency and linewidth of electrostatically actuated multiple air-gap filters. Applied Physics Letters 82, pp. 176-178 (2003)
• J. Daleiden, V. Rangelov, S. Irmer, E. Römer, M. Strassner, C. Prott, A. Tarraf, H. Hillmer: Record tuning range of InP-based multiple air-gap MOEMS filter. Electronics Letters 38, pp. 1270-1271 (2002)
• H. Hillmer: Prolegomena und Laudatio zu: Von der Radartechnik zur modernen Kommunikationstechnik (invited). Telekommunikation Aktuell 56, pp. 1-2 (2002)
• H. Hillmer, J. Daleiden, C. Prott, F. Römer, S. Irmer, V. Rangelov, A. Tarraf, S. Schüler, M. Strassner: Potential for micromachined actuation of ultra-wide continuously tunable optoelectronic devices (invited). Applied Physics B: Lasers and Optics 75, pp. 3-13 (2002)
• H. Hillmer: Der Transistor - die Entwicklung von den Anfängen bis zu den frühen integrierten Schaltungen. Der Fernmeldeingenieur 54, pp. 1-107 (2000)
• H. Hillmer, S. Marcinkevicius: Optically detected carrier transport in III/V semiconductor QW structures: experiments, model calculations and applications in fast 1.55 µm laser devices (invited). Applied Physics B: Lasers and Optics 66,

• pp. 1-17 (1998)

• B. Klepser, H. Hillmer: Investigations of thermal crosstalk in laser arrays for WDM applications. IEEE Journal of Lightwave Technology 16, pp. 1888-1894 (1998)
• A. Hangleiter, M. Geiger, C. Knorr, P. König, D. Ottenwälder, T. Riedl, F. Scholz, M. Zimmermann, H. Hillmer, F. Steinhagen, H. Burkhard: Carrier Transport in InP-Based Lasers, Modulators, and Optical Switching Devices. Physica Status Solidi B Basic Research 204, pp. 570-573 (1997)
• H. Hillmer: Heterostructures in the AlGaInAs material system: MBE growth and characterization (review paper). Research Trends 3, pp. 159-185 (1997)
• H. Hillmer, A. Grabmaier, H. Burkhard: Study of Continuously distributed phase shifts by chirped distributed-feedback gratings for 1.55 µm DFB lasers. IEE Proceedings-Optoelectronics 144, pp. 256-260 (1997)
• H. Hillmer, R. Lösch, W. Schlapp: Strain-balanced AlGaInAs/InP heterostructures with up to 50 QWs by MBE. Journal of Crystal Growth 175-176, pp. 1120-1125(1997)
• S. Marcinkevicius, H. Hillmer, R. Lösch, K. Fröjdh, U. Olin: Interwell Carrier Distribution in InAlGaAs Quantum Well Laser Structures. Physica Status Solidi B Basic Research 204, pp. 577-580 (1997)
• S. Marcinkevicius, H. Hillmer, R. Lösch, U. Olin: Photoexcited carrier dynamics in InAlGaAs/InP quantum well laser structures. Applied Physics Letters 69,

• pp. 1101-1103 (1996)

• M. Zimmermann, S. Krämer, A. Hangleiter, F.S. and H. Hillmer, H. Burkhard: Carrier transport in asymmetrically confined 1.55 µm multiple quantum well laser structures.  Applied Physics Letters 69, pp. 2324-2326 (1996)
• T.F. Albrecht, J.H.H. Sandmann, J. Feldmann, W. Stolz, E.O. Göbel, H. Hillmer, R. Lösch, W. Schlapp: Design and application of a femtosecond optical parametric oscillator for time-resolved spectroscopy of semiconductor heterostructures. Applied Physics B: Lasers and Optics 60, pp. 459-467 (1995)
• S. Hansmann, H. Hillmer, H. Walter, H. Burkhard, B. Hübner, E. Kuphal: Variation of coupling coefficients by sampled gratings in complex coupled distributed-feedback lasers. IEEE Journal of Selected Topics in Quantum Electronics 1, pp. 341-345 (1995)
• H. Hillmer, A. Grabmaier, S. Hansmann, H.L. Zhu, H. Burkhard, K. Magari: Tailored DFB laser properties by individually chirped gratings using bent waveguides. IEEE Journal of Selected Topics in Quantum Electronics 1, pp. 356-362 (1995)
• H. Hillmer, A. Grabmaier, H. Zhu, S. Hansmann, A. Burkhard: Continuously chirped DFB gratings by specially bent waveguides for tunable lasers. IEEE Journal of Lightwave Technology 13, pp. 1905-1912 (1995)
• H. Hillmer, R. Lösch, W. Schlapp: Compositional influence on photoluminescence linewidth and Stokes shift in In_xAl_zGa_1-x-zAs/In_yAl_uGa_1-u-yAs/InP heterostructures grown by molecular beam epitaxy. Journal of Applied Physics 77, pp. 5440-5442 (1995)
• H. Hillmer, R. Lösch, W. Schlapp, A. Pöcker, H. Burkhard: MBE grown strain-compensated AlGaInAs/AlGaInAs/InP MQW laser structures. Electronics Letters 31, pp. 1346-1348 (1995)
• H. Hillmer, R. Lösch, W. Schlapp, A. Pocker: Characterization of high-quality molecular beam epitaxial grown In_xAl_zGa_1-x-zAs/In_yAl_uGa_1-u-yAs/InP heterostructures.  Journal of Crystal Growth 146, pp. 159-163 (1995)
• H. Hillmer: Bent waveguides improve DFB laser performance: Fiberoptic components handbook (invited). Laser Focus World 31, pp. 117-122 (1995)
• H. Hillmer, S. Hansmann, H. Burkhard: Facet influence on wavelength tunability and linewidth chirp in InGaAs/InAlGaAs quantum-well distributed feedback lasers under high-bit-rate modulation. Optical Engineering 34, pp. 2985-2992 (1995)
• H. Hillmer: Arbitrarily chirped DFB gratings for photonic devices using a new method based on bent waveguides. Pure and Applied Optics 4, pp. 365-374 (1995)
• H. Hillmer, R. Lösch, W. Schlapp, H. Burkhard: MBE growth and study of strain-compensated Al_zGa_1−z−xIn_xAs/Al_uGa_1−u−vIn_vAs/InP quantum wells. Physical Review B Volume 52, Issue 24, pp. R17025(R) (1995)
• V. Hofsäß, J. Kuhn, C. Kaden, V. Härle, H. Burkhard, F. Scholz, H. Schweizer, H. Hillmer, R. Lösch, W. Schlapp: Optical integration of laterally modified multiple quantum well structures by implantation enhanced intermixing to realize gain coupled DFB lasers. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 106, pp. 471-476 (1995)
• V. Hofsäss, J. Kuhn, H. Schweizer, H. Hillmer, R. Lösch, W. Schlapp: Interdiffusion behavior in n-doped and undoped GaInAs/AlGaInAs multiple-quantum-well structures grown by molecular-beam epitaxy. Journal of Applied Physics 78 pp. 3534-3536 (1995)
• S. Mohrdiek, H. Burkhard, F. Steinhagen, H. Hillmer, R. Lösch, W. Schlapp, R. Göbel: 10-Gb/s standard fiber transmission using directly modulated 1.55-µm quantum-well DFB lasers. IEEE Photon. Technol. Lett. 7, pp. 1357-1359 (1995)
• S. Mohrdiek, H. Burkhard, H. Walter, H. Schöll, F. Steinhagen, H. Hillmer, R. Lösch, W. Schlapp, R.G. Göbel, H. Janning, B. Kempf, S. Hansmann, A. Mattheus: Multigigabit/s standard fibre transmission by injection-locked directly modulated lasers. Pure and Applied Optics: Journal of the European Optical Society Part A 4, pp. 409-415(7) (1995)
• F. Steinhagen, H. Hillmer, R. Lösch, W. Schlapp, H. Walter, R. Göbel, E. Kuphal, H.L. Hartnagel, H. Burkhard: AlGaInAs/InP 1.5µm MQW DFB laser diodes exceeding 20 GHz bandwidth. Electronics Letters 31, pp. 274-275 (1995)
• H.W. Dinges, H. Hillmer, H. Burkhard, R. Lösch, H. Nickel, W. Schlapp: Study of In0.53Ga0.47As/In0.52Al0.48As quantum wells on InP by spectroscopic ellipsometry and photoluminescence. Surface Science 307-309, pp. 1057-1060 (1994)
• S. Hansmann, H. Burkhard, H. Walter, H. Hillmer: A tractable large-signal dynamic model-application to strongly coupled distributed feedback lasers. IEEE Journal Lightwave Technology 12, pp. 952-956 (1994)
• S. Hansmann, H. Walter, H. Hillmer, H. Burkhard: Static and dynamic properties of InGaAsP-InP distributed feedback lasers - a detailed comparison between experiment and theory. IEEE Journal of Quantum Electronics 30, pp. 2477-2484 (1994)
• H. Hillmer, A. Grabmaier, S. Hansmann, H. Burkhard: Continuously distributed phase shifts in chirped DFB lasers using bent waveguides. Electronics Letters 30, pp. 1483-1484 (1994)
• H. Hillmer, S. Hansmann, H. Burkhard, H. Walter, A. Krost, D. Bimberg: Study of wavelength shift in InGaAs/InAlGaAs QW DFB lasers based on laser parameters from a comparison of experiment and theory. IEEE Journal of Quantum electronics 30, pp. 2251-2261 (1994)
• H. Hillmer, H.L. Zhu, A. Grabmaier, S. Hansmann, H. Burkhard, K. Magari: Novel tunable semiconductor lasers using continuously chirped distributed feedback gratings with ultrahigh spatial precision. Applied Physics Letters 65, pp. 2130-2132 (1994)
• H. Hillmer, S. Hansmann, H. Walter, H. Burkhard: Experimental and theoretical study of the facet phase influence on the wavelength shift in InGaAs/InAlGaAs quantum well distributed feedback lasers. Applied Physics Letters 64, pp. 698-700 (1994)
• H. Hillmer, T. Kuhn: Study of carrier capture and vertical transport in quantum well heterostructures. In: Semiconductor Science and Technology 9 (1994), pp. 727-729 (1994)
• H. Hillmer, T. Kuhn, A. Greiner, S. Hansmann, H. Burkhard: The role of vertical transport and capture of electrons and holes for the transient optical response in quantum-well heterostructures. Optical and Quantum Electronics, Volume 26, Issue 7, pp. S691-S703 (1994)
• A. Mecozzi, A. Sapia, P. Spano, H. Burkhard, S. Hansmann, H. Hillmer: Nonlinearities in high-index-coupled Lambda/4-shifted distributed-feedback semiconductor lasers.  IEE Proceedings-Optoelectronics 141, pp. 8-12 (1994)
• A. Griesinger, C. Kaden, N. Lichtenstein, J.H. and G. Lehr, R. Bergmann, A. Menschig, H. Schweizer, H. Hillmer, H.W.P. Koops, J. Kretz, M. Rudolph: Investigations of artificial nanostructures and lithography techniques with a scanning probe microscope. J. Vac. Sci. Technol. B, Microelectron. Process. Phenom. (USA) 11, pp. 2441-2445(1993)
• S. Hansmann, H. Hillmer, H. Janning, H. Burkhard: Theoretical and experimental study of inhomogeneously pumped distributed feedback lasers. Journal of Applied Physics, Volume 73, No 11, pp. 7138-7144 (1993)
• H. Hillmer, A. Forchel, C.W. Tu: An optical study of the lateral motion of two-dimensional electron-hole pairs in GaAs/AlGaAs quantum wells. Journal of Physics: Condensed Matter, Volume 5, No.31 pp. 5563-5580 (1993)
• H. Hillmer, K. Magari, Y. Suzuki: Chirped gratings for DFB laser diodes using bent waveguides. IEEE Journal of Photonic Technologies Letter, Volume 5, Issue 1, pp. 10-12 (1993)
• H. Hillmer, A. Forchel, S. Hansmann, M. Morohashi, E. Lopez, H.P. Meier, K. Ploog: Erratum: Optical investigations on the mobility of two-dimensional excitons in GaAs/Ga1-xAlxAs quantum wells. Physical Review B 47, Volume 39, No 15 pp. 6863+ (1993)
• H. Hillmer, H. Zhu, H. Burkhard: Enhanced tunability of asymmetric three-section InGaAsP/InP distributed feedback lasers. Journal of Applied Physics 73 (1993),

• pp. 1035-1038 (1993)

• H. Hillmer, C.W. Tu: Two-dimensional electron-hole pair diffusivities in thin GaAs/AlGaAs Quantum Wells. Applied Physics A: Materials Science & Processing Volume 56, Issue 5, pp. 445-448 (1993)
• S. Hansmann, H. Burkhard, K. Dahlhof, W. Schlapp, R. Losch, H. Nickel, H. Hillmer: Design and realization of InGaAs/GaAs strained layer DFB quantum well lasers.  Journal ofLightwave Technology, Volume 10, Issue 5, pp. 620-625 (1992)
• H. Hillmer, A. Forchel, R. Sauer, C.W. Tu: Enhanced exciton mobilities in GaAs/AlGaAs and InGaAs/InP quantum wells. Semiconductor Science and Technology, Volume 7, No.3 B, pp. B235-B239 (1992)
• H. Hillmer, A. Forchel, C.W. Tu: Enhancement of electron-hole pair mobilities in thin GaAs/Al_xGa_1-xAs quantum wells. Physical Review B 45, pp. 1240+ (1992)
• H. Hillmer, S. Hansmann, A. Forchel: Comment on "Radiative recombination processes of the many-body states in multiple quantum wells". Physical Review B 45, pp. 8782+ (1992)
• H. Hillmer, S. Hansmann, H. Burkhard: 1.53 µm InGaAsP-InP first-order Lambda/4-shifted distributed feedback lasers with high coupling coefficients. IEEE Journal of Quantum Electronics 27, pp. 1753-1758 (1991)
• H. Hillmer, A. Forchel, T. Kuhn, G. Mahler, H.P. Meier: Optical studies of vertical ambipolar transport and interface recombination velocities in GaAs/Al_0.5Ga_0.5As double-quantum-well heterostructures. Physical Review B 43, pp. 13992+ (1991)
• H. Hillmer, S. Hansmann, H. Burkhard: Realization of high coupling coefficients in 1.53µm InGaAsP/InP first-order quarter-wave shifted distributed feedback lasers.  Applied Physics Letters 57, pp. 534-536 (1990)
• H. Hillmer, A. Forchel, R. Sauer, C.W. Tu: Interface-roughness-controlled exciton mobilities in GaAs/Al_0.37Ga_0.63As quantum wells. Physical Review B 42, pp. 3220+ (1990)
• H. Hillmer, A. Forchel, S. Hansmann, M. Morohashi, E. Lopez, H.P. Meier, K. Ploog: Optical investigations on the mobility of two-dimensional excitons in GaAs/Ga_1-xAl_xAs quantum wells. Physical Review B 39, pp. 10901 (1989)
• H. Hillmer, A. Forchel, S. Hansmann, M. Morohashi, H.P. Meier, K. Ploog: Experimental and theoretical study of scattering mechanisms for 2D excitons in GaAs/AlGaAs quantum wells. In: Solid-State Electronics 32, pp. 1771-1775 (1989)
• H. Hillmer, S. Hansmann, A. Forchel, M. Morohashi, E. Lopez, H.P. Meier, K. Ploog: Two-dimensional exciton transport in GaAs/GaAlAs quantum wells. Applied Physics Letters 53, pp. 1937-1939 (1988)
• H. Hillmer, A. Forchel, S. Hansmann, E. Lopez, G. Weimann: High resolution studies of 2 D plasma transport in GaAs/GaAlAs quantum wells. Solid-State Electronics 31, pp. 485-488 (1988)
• H. Hillmer, T. Kuhn, B. Laurich, A. Forchel, G. Mahler: Experimental and theoretical investigations of free exciton transport in Si. Physica Scripta Volume 35, No.4, pp. 520 (1987)
• H. Hillmer, G. Mayer, A. Forchel, K.S. Löchner, E. Bauser: Optical time-of-flight investigation of ambipolar carrier transport in GaAlAs using GaAs/GaAlAs double quantum well structures. Applied Physics Letters, Volume 49, Issue15, pp. 948-950 (1986)
• A. Forchel, B. Laurich, H. Hillmer, G. Tränkle, M. Pilkuhn: Optical studies of fast plasma transport in Si. Journal of Luminescence Volume 30, Issue1-4, pp. 67-81 (1985)
•  
• A. Kobylinskiy, M. Kraus, L. Werner, H. Hillmer and R. Brunner, “Light folding improves sensor efficiency”, Optics and Photonics News. https://www.optica-opn.org/home/articles/volume_34/december_2023/extras/light_folding_improves_sensor_efficiency/ (2023)
• A. Kobylinskiy, L. Werner, M. Kraus, H. Hillmer, and R. Brunner, "Spectral origami: an angle-variable, wavelength-selective concept with a highly efficient filter-based sensing," Opt. Lett. 49, 638-641 (editors pick) (2024)
• M. H. Qasim, J. Chen, M. S. Q. Iskhandar, M. K. Hasan, S. Baby, B. Elsaka, D. Löber, G. Xu, and H. Hillmer „ Advancements in Surface Modification and Coloring Technologies for MEMS-Based Smart Windows:  Ultra-Thin Highly Absorbing Films and C-V Measurements of Smart Glass as Sustainable Energy Solutions”,  Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), ISBN 978-3-87480-385-4,  Vol. 79, pp. 336-372, (2023)

• S. Liu, B. Sen, I. Emal, M. Smolarczyk, and G. Caruso, “Ultrafast MEMS microshutter arrays for laser safety goggles and security devices” Technical digest of Advanced Study Institute Nanotechnological Advances in Environmental, Cyber and CBRN Security 14-22.09.2024, Sozopol, Bulgaria, p.61 (2024)
• M. H. Qasim, E. Farrag, and M. Kamrul, „Surface modification of MEMS-based smart windows with ultra-thin germanium films for glare reduction and aesthetic improvement: Enhancing environmental safety and security”, Technical digest of Advanced Study Institute Nanotechnological Advances in Environmental, Cyber and CBRN Security 14-22.09.2024, Sozopol, Bulgaria, p.76 (2024)
• E. Käkel, P. Graßhoff, M. Künne, B. Kaban, A. Stelter, F. Morales, A. Schatek, L. Hüser, P. Lehmann and H. Hillmer: “Generating Hierarchical Micro- and Nanostructures: An Approach via Substrate Conformal Imprint Lithography”, (invited), E-MRS Symposium, K. Smart materials for nanoelectronics and nanophotonics, 01562 Technical Digest (2023)
• B. Elsaka, P. Kästner, E. Käkel, N. Gundu, R. Donatiello and H. Hillmer: “Mysterious Casimir forces lead the way to novel 3D self-assembly in Yin-Yang structures” E-MRS Symposium, Q. Functional materials for energy and health solutions: modeling and characterization, 01525, Technical Digest (2023) (received Young Researcher Award)
• B. Kaban, S. Bagatur, M. Marcus Soter, M.A.G. Gonzalez, J.F. Lindner, T. Fuhrmann-Lieker and H. Hillmer: “Photo-induced reshaping of nanoimprinted guest-host systems and development of a tunable nanoimprint stamp based on azo dyes”, E-MRS Symposium, K. Smart materials for nanoelectronics and nanophotonics, 01559 Technical Digest (2023)
• H. Hillmer, Md. K. Hasan, M.S.Q. Iskhandar, D. Löber, Z. Lyu, S. Baby, Md.H. Qasim, J. Chen, B. Elsaka, S. Liu, M. Smolarczyk and G. Xu: “Functional MEMS smart glass in buildings for personalized light steering, energy savings and positive impact on health”, (invited),E-MRS Symposium, Q. Functional materials for energy and health solutions: modeling and characterization, 01548, Technical Digest (2023)
• R. Donatiello, P. Kästner and H. Hillmer: “Subfield Addressing of Ring-Shaped MEMS Shutter Arrays with Polygonal Structures”, E-MRS Symposium, K. Smart materials for nanoelectronics and nanophotonics, 01530, Technical Digest (2023)
• E. Käkel, P. Kästner, R. Donatiello B. Elsaka, B. Kaban, M. Iskhandar, H. Kamrul, H. Hillmer: “Implementation, characterization and application of 3-dimensional micro- and nanostructures” CINSaT Newsletter  No. 14, p. 16-20 (2023)
• A. Kobylinskiy, M. Kraus, H. Hillmer, R. Brunner: “Comparison of different methods to substantially improve the efficiency of filter-based spectroscopic sensors”, SPIE Proceedings, Vol 12516 Next-Generation Spectroscopic Technologies XV, 125160J, https://doi.org/10.1117/12.2663858 (2023)
• M. Kraus, T. Hönle, E. Förster, H. Hillmer, and R. Brunner: “Compact cross-grating spectrometer in double-pass configuration: design, implementation, and test”, SPIE Proceedings, Vol 12516 Next-Generation Spectroscopic Technologies XV,  1251607, http://dx.doi.org/10.1117/12.2664010 (2023)
• P. Kästner, E. Käkel, B. Elsaka, R. Donatiello, H. Hillmer: “Development of a 3D Self-assembly method using Casimir Forces” CINSaT Newsletter  No. 13, p. 7-12 (2022)
• A. Stelter, M. Künne, E. Käkel, H. Hillmer, P. Lehmann „Joint DFG Project, 2nd period: Production of specific 3D nano-particles and nano-structures for the development of an automated optical characterization using high-resolution interference microscopy”, CINSaT Newsletter 13/2022 p. 11-15 (2022)

• H. Hillmer, M.S.Q. Iskhandar, M.K. Hasan, D. Löber, X. Yang, E. Käkel, P. Kästner,  Smart glass MEMS micromirror arrays for personalized daylight steering, energy saving, and 3D self-assembly, Technical digest, GCPD Conference, Berlin (2022)
• P. Kästner, E. Käkel, S. Akhundzada, R. Donatiello and H. Hillmer, Development of self-assembled 3D MEMS Paired Shutter Arrays for studies on Casimir forces, Technical Digest MOC 2022, #1054, p. 74-75 (2022).

• M. K. Hasan, D. Löber, M. S. Q. Iskhandar, G. Xu, and H. Hillmer, Implementation of 2D Actuation in MEMS based Micromirror Arrays, Technical Digest MOC 2022, #1052, p. 72-73 (2022).
• A. Kobylinskiy, L. Werner, M. Kraus, H. Hillmer and R. Brunner, Comparison of Various Methods for Improving the Efficiency of Filter-Based Sensors, Technical Digest MOC 2022, #1055, p. 127-128 (2022).
• M. Knoblich, M. Kraus, D. Stumpf, L. Werner, H. Hillmer and R. Brunner,  Lithographic Fabrication of Rotationally Symmetric Meso- and Microscale Optical Elements using a Variable Diameter Annular Light Distribution, Technical Digest MOC 2022, #1057, p. 47-48 (2022).

• M. Kraus, E. Förster, V. Bagusat, T. Hönle, X. Uwurukundo, P. Bohnert, R. Brüning, H. Hillmer, R. Brunner: Compact, astigmatism corrected cross-grating spectrometer. In EPJ Web Conf., 238, 03005, DOI: 10.1051/epjconf/202023803005 (2020)
• M. K. Hasan, B. Kaban, E. Käkel, B. Elsaka and H. Hillmer, 3-dimensional nanostructures, Festschrift 20 Jahre CINSaT, pp. 124—131 (2022)

• M. Knoblich, M. Kraus, D. Stumpf, E. Förster, L. Werner, H. Hillmer, R. Brunner Mesoscale surface patterning by ring-shaped lithography for single and array optical elements  Proc. SPIE 12298, 122980D (2022) doi: 10.1117/12.2632159

• H. Hillmer, M. S. Iskhandar, B. Elsaka and Th. Kusserow: Nanophotonic sensorics: methodologies, resolution and miniaturization limits. In: CINSaT Newsletter No. 11, pp.05-07, (2021)
• M. Knoblich, M. Kraus, E. Förster, H.- J. Dobschal, D. Stumpf, L. Werner, X. Uwurukundo, H.  Hillmer, R. Brunner: Variable, ringförmige Belichtung zur lithografischen Herstellung rotationssymmetrischer mikrooptischer Elemente - Konzeption und Funktionsnachweis. DGaO-Proceedings (2021), ISSN: 1614-8436,

www.dgao-proceedings.de/download/122/122_b30.pdf

• H. Hillmer, M. S. Iskhandar and E. Lochridge : Smart glass has a bright future. SPIE Newsroom 2021, https://www.spie.org/news/smart-glass-has-a-bright-future
• A. Kobylinskiy, B. Laue, E. Förster, B. Höfer, Y. Shen, M. Kraus, X. Uwurukundo, H. Hillmer, R. Brunner: Einfacher, aber wirkungsvoller Ansatz zur Effizienzsteigerung filterbasierter Sensoren Konzept der spektralen Vorselektion. DGaO-Proceedings (2021) ISSN: 1614-8436, https://www.dgao-proceedings.de/download/122/122_a20.pdf
• H. Hillmer, Mysteriöse quantenphotonische Kräfte im Nanokosmos: der Casimir Effekt,  Tagungsband, SFN Schülerkongress (2021)
• M. Knoblich, M. Kraus, E. Förster, H.-J. Dobschal, D. Stumpf, L. Werner, X. Uwurukundo, H. Hillmer, R. Brunner: Konzept für ringförmige Grautonlithografie zur Herstellung rotationssymmetrischer mikrooptischer Elemente. Tagungsband, pp. 24-29,  21. NWK (2021)
• A.Kobylinskiy, B. Laue, E. Förster, B. Höfer, Y. Shen, E. Förster, H. Hillmer R. Brunner: Erhebliche Steigerung der Detektionseffizienz für Filterarray-basierte Spektralsensoren. Tagungsband, pp. 30-35. 21. NWK (2021)
• M. S. Iskhandar, K. Hasan, C. Woidt, H. Hillmer: 3D Micro- and Nanostructurization: Optical MEMS arrays for Smart Glass. CINSaT Newsletter No. 8, p.12-16 (2020)
• H. Hillmer: Der Laser: Aufbau, Funktionsweise und Anwendungen. Tagungsband, SFN Schülerkongress 2020
• H. Hillmer, M. Iskhandar, Q. Li (invited Keynote): Smart glass based on micromirror arrays: Fundamentals and applications in daylight steering, energy saving and personal lighting. ; Technical digest of 22nd Annual Meeting of China Association for Science and Technology, China Germany Young Scientists Forum, Qingdao China, (2020)
• M. Lotzgeselle, M. Taimoor, Y. Gao, H.V. Demir, H. Wilke, M. Maniak, C. Dang, H. Hillmer, Th. Kusserow: Properties of CdSe/CdS/ZnS Colloidal Quantum Dots in a Host Polymer for Infiltration in Photonic Devices. ICMAT 2019, Singapore, 2019, S. SS-09/4 (Abstract link) (2019)
• M. Taimoor, S. Reuter, S. Henning, M. Lotzgeselle, H. Hillmer, Th. Kusserow: VCSEL mit verteilter Rückkopplung in einer gechirpten Dünnschichtstruktur. DGaO-Proceedings 2019, ISSN: 1614-8436 – urn: nbn:de:0287-2019-P041-4, Darmstadt, 2019, S. P41 (2019)
• M. Iskhandar, H. Luo, K. A. Ekaputera, B. Al-Qargholi, M. Khan, H. Hillmer: Design, Fabrication and Characterization of Subfield Addressing in Micromirror Arrays for Smart Window Applications. In: Technical digest of IEEE OMN 2019, ISBN: 978-1- 7281- 4501-3, S. 192-193, (2019)
• H. Hillmer, B. Al-Qargholi, M. Khan, M. Iskhandar, H. Wilke, A. Tatzel: Optical MEMS based micromirror arrays: fabrication, characterization and potential applications in smart active windows. Technical digest of IEEE OMN 2019, ISBN: 978-1- 7281- 4501-3, S. 188-189, (2019)
• H. Hillmer: Der Laser: Aufbau, Funktionsweise und Anwendungen (mit in dem Vortrag integrierter Lasershow). In: VDE Hessen, VDE News online (2017)
• H. Hillmer: Faszination Licht und der Nanokosmos - was die Elektrotechnik von der Natur lernen kann. In: VDE Hessen, VDE News online (2017)
• H. Hillmer: High resolution 3D nanoimprint lithography. In: Verhandlungen mit der DPG, ISSN 0420-0195, pp. 92 (2017)
• A. Tatzel, H. Hillmer: Mikrosystemtechnik für die Lichtlenkung in aktiven Fenstern. In: Hessen Nanotech News, 51, 1, pp. 10-11 (2016)
• S. Reuter, M. Taimoor, H. Hillmer, T. Kusserow: Distribution of Cavity-modes in Narrowband Filters with Chirped Thin-Films. In: dgao-processings, A 23 (2016)
• H. Wilke, C. Heume, S. Alfihed, N. Hoinka, T. Fuhrmann-Lieker, T. Kusserow, H. Hillmer: Hybrid Vertical Cavity Surface-Emitting Laser in the Ultraviolet Spectral Range. In IEEE International Conference on Optical MEMS and Nanophotonics,

pp. 115-116 (2016)

• W. Xie, S. Hagemeier, C. Woidt, H. Hillmer, P. Lehmann: Influence of edges and steep slopes in 3D interference and confocal microscopy. In: Proc. SPIE 9890, Optical Micro- and Nanometrology VI (2016)
• H. Hillmer; A. Istock; Y. Shen; U.-M. Ha; T. Meinl; C. Woidt: Potentiale einer berührungslosen optischen Messtechnik für Backindustrie mit dem Nanospektrometer Sensor. In: Baker's Day, Bremerhaven, 3.3.2016, Technical Digest, pp. 11-12 (2016)
• T. Kusserow, M. Taimoor, S. Reuter, H. Hillmer: Narrowband Chirped Thin Film Filters with Distributed Cavity. In: IEEE Optical MEMS and Nanophotonics Conference, MO2.5 1-2 (2015)
• T. Kusserow, R. Zamora, H. Hillmer: A comparison of Thin-Film Materials as Hard Mask Layer for Nanostructure Fabrication by Focused Ion Beam Milling and Plasma Etching. In: ICMAT 2015, T-PO3-29 (2015)
• M. Taimoor, A. Alatawi, S. Reuter, H. Hillmer, T. Kusserow: Investigation of a Structuring Process for Surface Emitting Lasers (CoreSEL) with Distributed Cavities. In: ICMAT 2015, T2-4 (2015)
• M. Taimoor, S. Reuter, H. Hillmer, T. Kusserow: Narrowband Optical Thin-film Filters with Distributed Cavity Modes. In: ICMAT 2015, K-PO2-16 (2015)
• H. Hillmer: High Resolution 3D Nanoimprint and MEMS Technologies for Energy Saving, Nanosensorics and Pharmacy (invited). In: Technical Digest of SINC 2014, Riyadh, pp. 32-34 (2014)
• Y. Khan, N. Götte, T. Meinl, T. Kusserow, A. Senftleben, T. Baumert, H. Hillmer: Modelling, design and fabrication of dielectric photonic crystal structures using temporally asymmetric shaped femtosecond laser pulses. In: Technical Digest of OMN 2014, Glasgow, pp. 207-208 (2014)
• T. Meinl, N. Götte, Y. Khan, T. Kusserow; C. Sarpe, J. Köhler, M. Wollenhaupt, A. Senftleben, T. Baumert, H. Hillmer: Temporally shaped femtosecond laser pulses as direct patterning method for dielectric materials in nanophotonic applications. In: Proc. SPIE 9126 Nanophotonics V, 91262B (2014)
• A. Tatzel, B. Einwögerer, I. Bergmair, N. Worapattrakul, B. Khudhair, V. Viereck, H. Hillmer: Micromirror arrays for smart personal environments. In: NATO Nanoscience Advances in CBRN Agents Detection, Information and Energy Security, Sozopol, Bulgaria (2014)
• S. Blom, J. Shreshta, N. Storch, J. Sonksen, H. Hillmer: Technology for a highly sensitive sensor system based on competing modes in semiconductor lasers. In: NATO Nanoscience Advances in CBRN Agents Detection, Information and Energy Security, Sozopol, Bulgaria (2014)
• T. Meinl, N. Götte, Y. Khan, T. Kusserow, C. Sarpe, J. Köhler, M. Wollenhaupt, A. Senftleben, T. Baumert, H. Hillmer: Material processing of dielectric via temporally shaped femtosecond laser pulses as direct patterning method for nanophotonic applications. In: NATO Nanoscience Advances in CBRN Agents Detection, Information and Energy Security, Sozopol, Bulgaria (2014)
• M. Smolarczyk, S. Reuter, L. Jablonka, H. Hillmer: Implementation of A Novel Self-Aligned NanoShaping (SANS) Technology to Fabricate 3D Nanoparticles. In: Technical Digest of 13th Int. Conf. Nanoimprint and Nanoprint Technology (NNT2014), 24A-7-4 (2014)
• S. Reuter, A. Istock, M. Smolarczyk, U.-M. Ha, O. Schneider, L. Gomer, H. Hillmer: Fabrication of 2D and 3D Shaped Micro- and Nanoparticles via Substrate Conformal Imprint Lithography. In: Technical Digest of 13th Int. Conf. Nanoimprint and Nanoprint Technology (NNT2014), 34P-4-22 (2014).
• N. Worapattrakul, V. Viereck, H. Hillmer: Fabrication of Flexible SU-8 Moulds by A New Direct 3D Patterning Approach for Nanoimprint Lithography Apllications. In: Technical Digest of 13th Int. Conf. Nanoimprint and Nanoprint Technology, 23P-4-42 (NNT 2014)
• N. Götte, T. Winkler, C. Sarpe, B. Zielinski, J. Köhler, T. Kusserow, T. Meinl, Y. Khan, H. Hillmer, M. Wollenhaupt, A. Senftleben, T. Baumert: Real Time Observation of Transient Electron Density in High Bandgap Dielectrics Irradiated with Tailored Femtosecond Laser Pulses. In: DPG Frühjahrstagung (2014)
• N. Götte, C. Sarpe, J. Köhler, T. Kusserow, T. Meinl, Y. Khan, H. Hillmer, M. Wollenhaupt, T. Baumert: Generation of Functional Structures in Dielectrics on the Nanometer Scale via Shaped Femtosecond Laser Pulses. In: Conference on Laser Ablation (COLA), P1-02 (2013)
• T. Kusserow, N. Götte, Y. Khan, T. Meinl, C. Sarpe, J. Köhler, S. Schudy, M. Wollenhaupt, T. Baumert, H. Hillmer: Dielectric Photonic Crystal Structures Fabricated by Direct Patterning with Shaped Femtosecond Laser Pulses. In: ICMAT 2013, Symposium Q, ICMAT 13-A-1626 (2013)
• T. Kusserow, S. Schudy, M. Taimoor, T. Meinl, H. Hillmer: Narrowband Chirped Optical Filters with Distributed Cavity Modes. In: ICMAT 2013, Symposium M, ICMAT  13-A-1631 (2013)
• S. Schudy, L. Gomer, M.A. Smolarczyk, T. Sharbatitehrani, H. Hillmer: Replica Molding Techniques for Large Area Application of Nanoimprint with Soft Stamps. In: ICMAT 2013, Symposium M, ICMAT 13-A-1536 (2013)
• S. Schudy, M.A. Smolarczyk, L. Gomer, A.T. Istock, O. Schneider, N. Worapattrakul, F. Pilger; H. Hillmer: Polymer nanoparticles shaped in two and three dimensions by substrate conformal imprint lithography. In: ICMAT 2013, Symposium H,

ICMAT 13-A-1528 (2013)

• N. Götte, C. Sarpe, J. Köhler, L. Englert, D. Otto, T. Kusserow, T. Meinl, Y. Khan, H. Hillmer, M. Wollenhaupt, T. Baumert: Generation of Functional Structures in Dielectrics on Nanometer Scale via Shaped Femtosecond Laser Pulses. In: DPG Frühjahrstagung (2013)
• N. Götte, C. Sarpe, J. Köhler, L. Englert, D. Otto, T. Kusserow, T. Meinl, Y. Khan, H. Hillmer, M. Wollenhaupt, T. Baumert: Generation of Functional Structures in Dielectrics on Nanometer Scale via Shaped Femtosecond Laser Pulses. In: nano 3D (2012)
• T. Kusserow, Y. Khan, R. Zamora, F. Messow, H. Hillmer: Guided-mode Resonances in Dielectric Photonic Crystals Slabs with Low Index Contrast. In: IEEE Optical MEMS and Nanophotonics Conference, pp. 170-171 (2012)
• H. Hillmer, A. Albrecht, C. Woidt, X. Wang, S. Schudy, N. Worapattrakul, F. Pilger, M. Smolarcyk, A. Jäkel, V. Viereck: High resolution 3D nanoimprint and MEMS technologies for nanophotonic sensors, light steering and pharmacy. In: 2011 Shanghai International Nanotechnology Cooperation Symposium (SINCS2011)
• V. Viereck; A. Jäkel, U. Neumann; A. Schwank; H. Hillmer; J. Schmid: Active Windows with micro mirror arrays for improved utilization of daylight in buildings. In: Proc. Solar World Congress (2011)
• U. Akcakoca, B. Witzigmann, R. Zamora, T. Kusserow, H. Hillmer: Design and Analysis of Polarization Selective Tunable Photonic Crystal Filters. In: 11th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), TuD4, (2011)
• R. Zamora, M. Benes, T. Kusserow, H. Hillmer, U. Akcakoca, B. Witzigmann: Optical Characterization of Photonic Crystals as Polarizing Structures for Tunable Optical MEMS Devices. In: International Conference on Optical MEMS and Nanophotonics (OMN), 83-84 (2011)
• Y. Monnai, A. Jäkel, V. Viereck, H. Hillmer, H. Shinoda: A Proposal of MEMS Structures Implementing Terahertz Phased Arrays. In: Proc. Sensing Forum (2011)
• T. Kusserow, M.I. Hafiz, M.A. Ahmed, T. Graf, H. Hillmer: Nanopatterning of Dielectric Thin-films on the Facets of Optical Fibers. In: ICMAT 2011, pp. J11.1-3 (2011)
• T. Kusserow, B. Schiel, H. Hillmer: Diffraktiv optische Elemente für künstlerische und darstellende Anwendungen. In: dgao-proceedings, S.A-20 (2011)
• T. Kusserow, M. Wulf, R. Zamora, K. Kanwar, H. Hillmer: Processing of Photonic Crystals in InP Membranes by Focused Ion Beam Milling and Plasma Etching. In: ICMAT 2011, pp. BB 7-3 (2011)
• T. Kusserow, R. Zamora, M. Wulf, U. Akcakoca, R. Marklein, B. Witzigmann, H. Hillmer: Polarisationsselektive InP MOEMS Filter mit Photonischen Kristallen. In: dgao-proceedings, S.B-3 (2011)
• U. Akcakoca, R. Marklein, B. Witzigmann, H. Hillmer: Electromagnetic analysis of polarization and frequency selective tunable optical MEMS. In: 10th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), IEEE, Atlanta, pp. 81-82 (2010)
• H.H. Mai, O. Setyawati, V. Daneker, C. Woidt, T. Woit, K. Schultz, S. Schudy, M. Engenhorst, X. Wang, S. Wittzack, F. Köhler, A. Albrecht, M. Bartels, H. Hillmer: Verification and calibration of spectral properties of high-resolution nano sensor arrays using microscope spectrometers. In: Technical Digest MOC´10, 16th Microoptics Conference, MC3, pp. 22-23 (2010)
• O. Setyawati, H. Mai, C. Woidt, S. Schudy, M. Engenhorst, S. Wittzack, F. Köhler, M. Bartels, H. Hillmer: Low-cost micromachined tunable Fabry-Pérot filters for optical nano sensor arrays. In: Technical Digest MOC´10, 16th Microoptics Conference, TB4, pp. 64-65 (2010)
• O. Setyawati, M. Engenhorst, S. Wittzack, F. Köhler, C. Woidt, T. Woit, V. Daneker, M. Bartels, H. Hillmer: Dry etching of TiO2/SiO2 DBR mirrors for tunable optical sensor arrays. In: SPIE Proceedings Photonic West MOEMS-MEMS 2010, ISBN: 9780819479877, SPIE, 2010, 7591 (Advanced Fabrication Technologies for Micro/Nano Optics and Photonics III), 75910R-(1-8) (2010)
• A. Jäkel, J. Clobes, Q. Li, V. Viereck, and H. Hillmer, “Integration of actuable MEMS in networked sensing systems,” in IEEE Technical Digest INSS. pp. 61-64 (2010).
• M. Bartels, S. Wittzack, F. Köhler, X. Wang, A. Albrecht, S. Schudy, M. Engenhorst, H. H. Mai, O. Setyawati, T. Woit, C. Woidt, H. Hillmer: High Vertical Resolution 3D Nanoimprint Technology for Nanophotonic Applications. In: IEEE/LEOS International Conference on Optical MEMS and Nanophotonics 2009 (2009)
• M. Bartels, X. Wang, T. Kusserow, F. Koehler, S. Wittzack, H. Hillmer: 3D nanoimprint templates with ultra-high vertical precision. In: ICMAT 2009 & IUMRS-ICA 2009 (2009)
• H. Hillmer, V. Viereck, Q. Li, A. Jäkel: Sonnenbrillen für Innenräume. In: Cluster Chemie Newsletter 1, pp. 3 (2009)
• A. Jäkel, Q. Li, V. Viereck, H. Hillmer: Development of Electrostatically Driven Micromirror Arrays for Daylight Guiding on Large Areas. In: IEEE/LEOS International Conference on Optical MEMS and Nanophotonics 2009, pp. 41-42 (2009)
• A. Jäkel, Q. Li, V. Viereck, H. Hillmer: Großflächiges Mikrospiegelsystem zur Tageslichtlenkung. In: Tagungsband Mikrosystemtechnik Kongress 2009, pp. 868-871 (2009)
• T. Kusserow, S. Irmer, D. Nethaji, H. Hillmer, B. Vengatesan: Tunable Fabry-Perot-filters based on InP/air-gap mirrors. In: Photonik International 1, pp. 14-16 (2009)
• T. Kusserow, M. Wulf, R. Zamora, B. Vengatesan, B. Witzigmann, H. Hillmer: Photonic Crystal Polarizer Element on InP/Air Membranes for Optical MEMS Applications. In: ICMAT 2009 & IUMRS-ICA 2009 (2009)
• Q. Li, A. Jäkel, V. Viereck, J. Schmid, H. Hillmer: Design and fabrication of self-assembling micromirror arrays. In: Proc. SPIE 7362, Smart Sensors, Actuators, and MEMS IV, 736211 (2009)
• J. Sonksen, M. Ahmad, N. Storch, H. Krause, S. Blom, A. Pötzl, H. Hillmer: Controlling and Tuning the Emission of Semiconductor Optical Amplifier for Sensor Application by Means of Fiber Bragg Gratings. In: 8th WSEAS International Conference on Microelectronics, Nanoelectronics, Optoelectronics (MINO '09) (2009)
• V. Viereck, Q. Li, A. Jäkel, H. Hillmer: Großflächige Anwendung von optischen MEMS: Mikrospiegel-Arrays zur Tageslichtlenkung. In: Photonik 2, pp. 28-29 (2009)
• V. Viereck, Q. Li, A. Jäkel, H. Hillmer: Large-area applications of optical MEMS: micromirror arrays guide daylight, optimize indoor illumination. In: Photonik International 2, pp. 48-49 (2009)
• Q. Li, A. Jäkel, V. Viereck, J. Schmid, and H. Hillmer, “Design and fabrication of self-assembling micromirror arrays,” in SPIE Europe Microtechnologies for the New Millennium, Proc. SPIE 7362, Smart Sensors, Actuators, and MEMS IV, 7362-11, 7362-36 (2009).
• S. Wittzack, F. Köhler, X. Wang, O. Setyawati, T. Woit, A. Albrecht, M. Engenhorst, S. Schudy, C. Woidt, M. Bartels, H. Hillmer: Hochpräzise Nanoimprint-Templates für 3D-Strukturen (invited). In: Galvanotechnik, Band 100, Heft 10, pp. 2376-2382 (2009)
• M. Wulf, T. Kusserow, R. Zamora, H. Hillmer: A Polarizing Element using the Guided-Mode Resonance in a Photonic Crystal Slab. In: 1st IEEE Germany Student Conference (2009)
• M. Bartels, F. Köhler, S. Wittzack, X. Wang, H. Hillmer: Ultra precise Nanoimprint templates (invited). In: NanoS 03.08, pp. 18-22 (2008)
• M. Bartels, V. Viereck, Q. Li, J. Ackermann, A. Jäkel, J. Schmid, H. Hillmer: Die Sonnenbrille fürs Büro: Mikrospiegel-Arrays zur Lichtlenkung. In: Tagungsband Thüringer Gernz- und Oberflächentage und Thüringer Kolloquium "Dünne Schichten in der Optik", pp. 66-70 (2008)
• V. Viereck, J. Ackermann, Q. Li, A. Jäkel, J. Schmid, and H. Hillmer: Sun glasses for buildings based on micro mirror arrays: Technology, control by networked sensors and scaling potential (invited),” in IEEE Technical Digest, pp. 135–139 (2008).
• H. Hillmer, F. Köhler, S. Wittzack: Höchstauflösende 3D- NanoImprint-Stempel für Massenmarkt-Anwendungen. In: Hessen Nanotech news 2, pp. 6 (2008)
• H. Krause, J. Sonksen, J. Baumann, U. Troppenz, W. Rehbein, V. Viereck, H. Hillmer: RIN-spectra of a two-mode lasing two-section DFB-laser for optical sensor application. In: Procceedings of the SPIE Photonics Europe Conference 6997 (2008)
• H. Krause, J. Sonksen, M. Ahmad, V. Viereck, O. Mikami, H. Hillmer: Aufbau eines Faserbasierten Laserresonators mit zwei Fabry-Pérot Kavitäten und einer gemeinsamen aktiven Zone für Sensorikanwendungen. In: 109. DGaO Konferenz,

pp. B24 (2008)

• T. Kusserow, H. Hillmer: Optoelektronische Bauelemente für die höchstbitratige Tele- und Datenkommunikation - Elektrisch einstellbare optische Filter. In: Hessen Nanotech news 2, pp. 4 (2008)
• T. Kusserow, S. Ferwana, T. Nakamura, T. Hayakawa, N. Dharmarasu, B. Vengatesan, H. Hillmer: Micromachining of InP/InGaAs multiple membrane/airgap structures for tunable optical devices. In: SPIE Photonics Europe 2008 (2008)
• H. Wacker, J. Börcsök, H. Hillmer: The Channel Capacity and Probability of Undetected Error in the Case of Redundant Data Transmission. In: Techn. Digest, Int. Workshop on Principles of Safety Communications, pp. 17-22 (2008)
• H. Wacker, J. Börcsök, H. Hillmer: Redundant Data Transmission via Different Types of Binary Channels (invited). In: Proceedings of the 7th WSEAS Int. Conf. on Applied Computer & Applied Computational Science (ACACOS '08), pp. 609-615 (2008)
• H. Wacker, J. Börcsök, H. Hillmer: Redundant Optical Data Transmission Using Semiconductor Lasers. In: The 6th ACS/IEEE International Conference on Computer Systems and Applications (AICCSA-08), pp. 1040-1045 (2008)
• T. Kusserow, R. Zamora, J. Sonksen, T. Nakamura, T. Hayakawa, B. Vengatesan, N. Dharmarasu, H. Hillmer: Monolithic Integration of a Tunable Photodetector Based on InP/airgap Fabry-Pérot Filters. In: Proc. IEEE/LEOS International Conference on Optical MEMS and Nanophotonics (2008)
• T. Kusserow, M. Wulf, N. Dharmarasu, H. Hillmer: Herstellung und Charakterisierung von nanophotonischen Strukturen mit Hilfe fokussierter Ionenstrahlen. In: DGaO Proceedings 2008 (2008)
• H. Hillmer: Die vielen Väter des Transistors - Meilensteine in der Geschichte des Festkörperverstärkers (invited). In: Physik in unserer Zeit, 6, S. 296-300 (2008)
• H. Hillmer: Die Meilensteine bei der Entwicklung des Transistors (invited). In: Zeitschrift für Physik (2008)
• J. Ackermann, V. Viereck, N. Dharmarasu, H. Hillmer: Mikrosystemtechnische Lichtlenksysteme auf der Basis von Mikrospiegelarrays für Photovoltaische Anlagen an Gebäuden. In: Tagungsband des Mikrosystemtechnik Kongress Dresden 2007 (2007)
• V. Viereck, Q. Li, J. Ackermann, A. Schwank, S. Araujo, A. Jäkel, S. Werner, N. Dharmarasu, J. Schmid, and H. Hillmer, “Novel large area applications using optical MEMS,” in Proc. IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, pp. 55-56 (2007).
• V. Viereck, Q. Li, A. Jäkel, S. Werner, J. Ackermann, N. Dharmarasu, and H. Hillmer, Innovative Lichtlenksysteme zur Tageslichtnutzung und zur Wärmeregulierung in Gebäuden auf der Basis von Mikrospiegelarrays, in hessen-nanotech NEWS 1/07, pp. (2007).
• H. Hillmer, V. Viereck, T. Kusserow, Y. Wang, S. Irmer, N. Dharmarasu, D. Todorov, A. Jäkel, Q. Li, A. Hasse, D. Bienhaus, and M. Bartels, “Nanophotonic devices and components: micromachined motion, fabrication, characterization, scaling potential and applications,” in Technical digest 3rd Shanghai International Nanotechnology Symposium, p. 245 (2007).
• H. Hillmer: Innovative Lichtlenksysteme auf Basis von Mikrospiegelarrays. In: hessen-nanotech NEWS 1/07, pp. 5 (2007)
• H. Hillmer, T. Kusserow, N. Dharmarasu, S. Irmer, J. Daleiden, A. Hasse, M. Bartels, B. Vengatesan, T. Hayakawa: Micromachined tunable 1.55µm vertical cavity, multiple air-gap filters and lasers: fabrication, characterization, scaling potential and applications (invited). In: technical Digest, OECC/IOOC 2007 Yokohama, 12E2-1, pp. 428 (2007)
• H. Hillmer, Y. Wang, T. Kusserow, N. Dharmarasu, A. Hasse, M. Bartels: Wavelength division multiplexing (WDM) for secure optical data communication in industrial computers, process control and fabrication systems. In: Proceedings of WSEAS 2007 (2007)
• H. Hillmer, J. Schmid: Tandem Vortrag: Nano- und Mikrotechnologien im Dienste der nachhaltigen Entwicklung. In: 4. Nanotechnologieforum Hessen: What's next for International Nanomarkets (2007)
• H. Hillmer: Micromirror arrays: sun glasses for buildings. (invited, key note). In: NanoEquity Europe, Hilton Frankfurt (2007)
• T. Kusserow, N. Dharmarasu, S. Irmer, H. Hillmer, T. Nakamura, T. Hayakawa, B. Vengatesan: Durchstimmbare Fabry-Pérot Filter auf der Basis von InP/Luft DBR-Spiegeln. In: Tagungsband der DGaO 2007 (2007)
• T. Kusserow, S. Irmer, D. Nethaji, H. Hillmer, B. Vengatesan: Weit durchstimmbare Fabry-Perot-Filter mit InP/Luft-Spiegeln. In: Photonik 6, pp. 64-66 (2007)
• V. Viereck, Q. Li, J. Ackermann, A. Schwank, S. Araujo, A. Jäkel, S. Werner, N. Dharmarasu, J. Schmid, H. Hillmer: Novel Large Area Applications Using Optical MEMS. In: Proc. IEEE/LEOS International Conference on Optical MEMS and Nanophotonics, pp. 55-56 (2007)
• V. Viereck, Q. Li, A. Jäkel, S. Werner, J. Ackermann, N. Dharmarasu, H. Hillmer: Innovative Lichtlenksysteme zur Tageslichtnutzung und zur Wärmeregulierung in Gebäuden auf der Basis von Mikrospiegelarrays. In: Tagungsband des Mikrosystemtechnik Kongress Dresden 2007 (2007)
• Y. Wang, T. Kusserrow, S. Irmer, A. Hasse, M. Bartels, N. Dharmarasu, H. Hillmer, J. Börcsök, O. Mikami: Optics in Computer Architectures: Basis of WDM, Technologies and Potentials. In: Proc. Second International Conference on Systems ICONS '07, pp. 50 (2007)
• H. Hillmer, T. Kusserow, N. Dharmarasu, S. Irmer, J. Daleiden, M. Bartels, T. Nakamura, T. Hayakawa, B. Vengatesan, A. Hasse, S. Hansmann: Strain-balanced In(GaAs)P heterostructures for tunable multiple InP/air-gap DBR Fabry-Pérot filters. In: Proceedings of 20th Int. Conf. on Engineering Physics (ICEP), pp. 18 (2006)
• H. Hillmer, T. Kusserow, N. Dharmarasu, S. Irmer, J. Daleiden, M. Bartels, T. Nakamura, T. Hayakawa, B. Vengatesan, A. Hasse, S. Hansmann: Strain-balanced In(GaAs)P heterostructures for tunable multiple InP/air-gap DBR Fabry-Pérot filters. In: VGS 9 Proceedings (2006)
• H. Hillmer: Nanotechnology in optics: foundations, implementations, applications and future potential. In: 6th WSEAS International Conference on APPLIED COMPUTER SCIENCE (ACS'06) (2006)
• H. Hillmer: Wavelength division multiplexing (WDM) for secure optical data communication in industrial computers, process control and fabrication systems. In: 6th WSEAS International Conference on APPLIED COMPUTER SCIENCE (ACS'06) (2006)
• M. Joodaki, H. Hillmer: Technological requirements for a self-aligned lateral SiGe HBT with the SiGe layer formed by Ge ion implantation in Si including theoretical performance. In: Proc. 8th International Conference on Solid-State and Integrated Circuit Technology ICSICT '06, pp. 231-234 (2006)
• M. Joodaki, A. Kricke, H. Hillmer, G. Kompa: Interconnects Analyses in Quasi-Monolithic Integration Technology (QMIT). In: Proc. Electrical Performance of Electronic Packaging, pp. 229-232 (2006)
• T. Kusserow, N. Dharmarasu, H. Hillmer: Tailored Stress in InP/GaInAs Layers for InP/Air-Gap DBR-Filters with Photonic Crystals. In: Proc. IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, pp. 88-89 (2006)
• H. Halbritter, F. Riemenschneider, B. Kögel, A.T. and M. Strassner, S. Irmer, H. Hillmer, I. Sagnes, P. Meissner: MEMS-tunable and wavelength selective receiver front end. In: Proc. 18th IEEE International Conference on Micro Electro Mechanical Systems MEMS 2005, pp. 68-71 (2005)
• H. Hillmer, A. Tarraf, F. Riemenschneider, S.I. and H. Halbritter, J. Daleiden, F. Römer, C. Prott, E. Ataro, A. Hasse, M. Strassner, S. Hansmann, P. Meissner: Wide continuously tunable 1.55µm vertical air-cavity wavelength selective elements for filters and VCSELs using micromachined actuation (Invited Paper) (Proceedings Paper). In: SPIE Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks, pp. 14-28 (2005)
• T. Scholz, T. Debski, F. Römer, S. Irmer, V. Viereck, M. Bartels, W. Barth, H. Hillmer: High resolution optical characterization of cantilever arrays and multiple air-gap cavities for scanning probe microscopy, communication, analytics and sensing. In: Proc. IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, pp. 123-124 (2005)
• F. Römer, M. Streiff, C. Prott, S. Irmer, A.W. and B. Witzigmann, H. Hillmer: Transfer function simulation of all-air-gap filters based on eigenmodes. In: Proc. 4th International Conference on Numerical Simulation of Optoelectronic Devices NUSOD '04, pp. 105-106 (2004)
• A. Tarraf, M. Nestler, S. Martin, U. Poll, D.R. and J.Dienelt, H. Neumann, B. Rauschenbach, S. Irmer, F. Römer, V. Daneker, H. Hillmer: Dual Ion Beam Sputter Deposition System for EUVL Masks. In: XUV Technologies and Applications seminar, Bad Honnef, Germany (2004)
• A. Tarraf, M. Nestler, U. Poll, D. Roth, J.D. and H. Neumann, B. Rauschenbach, S. Irmer, F. Römer, H. Hillmer: A novel dual ion beam sputter deposition system for implementing low defect density and high-quality EUVL masks. In: 3rd International EUVL Symposium, NOVEMBER 1-4, 2004, Miyazaki, Japan (2004)
• J. Daleiden, S. Irmer, E. Ataro, C. Prott, V. Rangelov, F. Römer, M. Strassner, A. Tarraf, H. Hillmer: Continuously tunable air-gap micro-cavity devices for optical communication systems. In: SPIE Proc. Vol. 4871, pp. 145-159 (2003)
• J. Daleiden, S. Irmer, A. Tarraf, F. Römer, C. Prott, E. Ataro, M. Strassner, H. Hillmer: Multiple air-gap InP-based VCSELs and filters with ultra-wide wavelength tuning-flexibility and shape of the membranes. In: Proc. IEEE/LEOS International Conference on Optical MEMS, pp. 36-37 (2003)
• H. Hillmer, J. Daleiden, S. Irmer, F. Römer, C. Prott, A. Tarraf, M. Strassner, E. Ataro, T. Scholz: Potential of micromachined photonics: miniaturization, scaling and applications in continuously tunable vertical air-cavity filters (invited). In: SPIE Proc. series Vol. 4947, pp. 196-211 (2003)
• H. Hillmer, J. Daleiden, C. Prott, F. Römer, S. Irmer, E. Ataro, A. Tarraf, D. Gutermuth, I. Kommallein, M. Strassner: Ultrawide continuously tunable 1.55µm vertical air-cavity wavelength-selective elements for VCSELs using micromachined electrostatic actuation (invited). In: SPIE Proc. series Vol. 5246, pp. 18-32 (2003)
• H. Hillmer, J. Daleiden, C. Prott, S. Irmer, F. Römer, E. Ataro, A. Tarraf, H. Rühling, M. Maniak, M. Strassner: Bionics: Precise colour tuning by interference in nature and technology - applications in surface micromachined 1.55 microns vertical air cavity filters. In: SPIE Proc. series Vol. 4983, pp. 203-214 (2003)
• H. Hillmer, C. Prott, J. Daleiden, F. Römer, S. Irmer, E. Ataro, M. Strassner: 142nm electrostatically actuated tuning using surface-micromachined vertical air-cavity wavelength-selective elements for applications in 1.55µm VCSEL's. In: SPIE Proc. series Vol. PW2 (2003)
• H. Hillmer: Ultra-wide continuously tunable 1.55µm vertical air-cavity wavelength selective elements for VCSEL's using micromachined electrostatic actuation. In: ITCOM 2003, Orlando, USA (2003)
• S. Irmer, J. Daleiden, C. Prott, V. Rangelov, F. Römer, M. Strassner, A. Tarraf, H. Hillmer: Continuously tunable InP based multiple-air-gap MOEMS filter with ultra wide tuning range. In: SPIE Proc. Vol. 4945, pp. 21-29 (2003)
• A. Tarraf, J. Daleiden, V. Rangelov, F. Römer, C. Prott, S. Irmer, E. Ataro, H. Hillmer: Novel low-cost and simple fabrication technology for tunable dielectric air-gap devices. In: SPIE Proc. series Vol. 4945, pp. 9-20 (2003)
• J. Daleiden, S. Irmer, V. Rangelov, F. Römer, A. Tarraf, C. Prott, M. Strassner, H. Hillmer: Record wavelength tuning of 127nm for vertical cavity Fabry-Pérot filter. In: Proceedings of the Optical MEMS Conference, Lugano, CH, 20-23 August 2002, pp. 169 (2002)
• J. Daleiden, S. Irmer, V. Rangelov, F. Römer, A. Tarraf, C. Prott, M. Strassner, H. Hillmer: Record wavelength tuning of 127 nm for vertical cavity Fabry-Pérot filter. In: Proc. Conference Digest Optical MEMs 2002 IEEE/LEOS International Conference on, pp. 169-170 (2002)
• H. Hillmer, J. Daleiden, C. Prott, F. Römer, A. Tarraf, S. Irmer, V. Rangelov, S. Schüler, M. Strassner: Ultra-wide continuously tunable 1.55µm vertical air-cavity filters and VCSEL's based on micromachined electrostatic actuation. In: SPIE Proc. series Vol. 4646, pp. 145 (2002)
• H. Hillmer: Potential of micromachined photonics: miniaturization, scaling and applications in continuously tunable vertical air-cavity filters. In: Phot. Fabr. Europe 2002, Brügge, Belgium (2002)
• H. Hillmer: Continuously tunable air gap microcavity devices for optical communication systems. (invited). In: ITCOM 2002, Boston, USA (2002)
• M. Joodaki, G. Kompa, H. Hillmer: New generation quasi-monolithic integration technology (QMIT). In: Proc. 52nd Electronic Components and Technology Conference, pp. 641-645 (2002)
• M. Joodaki, T. Senyildiz, G. Kompa, H. Hillmer: Heat transfer and thermal stress analysis in the new generation Quasi-Monolithic Integration Technology (QMIT). In: IEEE Technical Digest ECTC, 52th. Conf., P373, Seattle, USA, 2002 (2002)
• J. Piprek, Y. Chiu, S. Zhang, J.E. Bowers, C. Prott, H. Hillmer: High-Efficiency MQW Electroabsorption Modulators. In: ECS Proceedings of International Symposium on Integrated Optoelectronics, Philadelphia, Pennsylvania, 12-17 May, 2002 (2002)
• F. Römer, C. Prott, J. Daleiden, S. Irmer, M. Strassner, A. Tarraf, H. Hillmer: Micromechanically tunable air gap resonators for long wavelength VCSEL's. In: Proc. IEEE 18th International Semiconductor Laser Conference, pp. 13-14 (2002)
• A. Tarraf, J. Daleiden, F. Römer, C. Prott, V. Rangelov, S. Irmer, E. Ataro, H. Hillmer: A novel low-cost tunable dielectric air-gap filter. In: Proc. Conference Digest Optical MEMs 2002 IEEE/LEOS International Conference on, pp. 175-176 (2002)
• M. Joodaki, G. Kompa, H. Hillmer, R. Kassing: Optimization of thermal resistance in quasi monolithic integration technology (QMIT) structure. In: Proc. Seventeenth Annual IEEE Symposium Semiconductor Thermal Measurement and Management, pp. 12-17 (2001)
• M. Joodaki, G. Kompa, H. Hillmer, R. Kassing: Optimization of Quasi-Monolithic Integration Technology (QMIT) with respect to Thermal Resistance and Induced Thermal Stress for Power Applications. In: International Microwave Symposium IEEE MTT-S 2001, Phoenix, Arizona, USA (2001)
• M. Joodaki, G. Kompa, T. Leinhos, R. Kassing, H. Hillmer: Simulation and measurement of thermal stress in quasi-monolithic integration technology (QMIT). In: Conf. Proc. 51st Electronic Components & Technology Conference ECTC,

pp. 715-720 (2001)

• M. Joodaki, G. Kompa, T. Leinhos, R. Kassing, H. Hillmer: Thermal stress in Quasi Monolithic Integration Technology (QMIT). In: German wireless week of Microwave and optronics MIOP 2001 (2001)
• J. Daleiden, N. Chitica, M. Strassner, C. Prott, F. Roemer, A. Tarraf, H. Hillmer: Micromechanically Tunable Optical Devices. In: Summer School and European Optical Society Topical Meeting on Semiconductor Microcavity Photonics, October 21-25, 2000 (2000)
• H. Hillmer, C. Prott, M. Strassner, N. Chitica, J. Daleiden: Mikrosystemtechnische Konzepte in der optischen Datenübertragung: Neuartige abstimmbare DFB-Laser und Bragg-Filter (invited). In: Tagungsband "Optik in der Rechentechnik", Hagen 27.-28.9.2000, pp. 75-85 (2000)
• M. Joodaki, G. Kompa, H. Hillmer, R. Kassing: Static thermal design of quasi monolithic integration technology (QMIT). In: Proc. 8th IEEE International Symposium on High Performance Electron Devices for Microwave and Optoelectronic Applications, pp. 117-122 (2000)
• M. Joodaki, G. Kompa, H. Hillmer, R. Kassing: Static Thermal Design of Quasi-Monolithic Integrated Technology (QMIT). In: Conf. Proc. 8th IEEE International Symposium on Electron Devices for Microwave and Optoelectronic Applications EDMO 2000 (2000)
• H. Hillmer, B. Klepser: Semiconductor lasers for high bit rate optical data transmission - Investigations to increase the yield of laser arrays (invited). In: SPIE Proc. series, Vol. 3688, pp. 308-317 (1998)
• H. Hillmer, S. Marcinkevicius: Ultrafast modulation of 1.55µm AlGaInAs/InP DFB QW laser structures: optically detected carrier dynamics, limiting mechanisms and applications (invited). In: SPIE Proc. series, Vol. 3734, pp. 282-293 (1998)
• H. Hillmer, S. Marcinkevicius: Optically detected carrier transport and capture in III/V- semiconductor QW structures: high resolution experiments, model calculations and applications in fast 1.55µm lasers (invited). In: SPIE Proc. series, Vol. 3683,

pp. 196-207 (1998)

• H. Hillmer: Semiconductor lasers for high bit rate optical data transmission. (invited). In: Semiconductor Laser workshop, Optoelectronic of mesoscopic solids Marburg, Germany (1998)
• H. Hillmer: Optically detected carrier transport and capture in III/V-semiconductor QW structures: high resolution experiments, model calculations and applications in ultrafast 1.55µm lasers. In: IX Conference on Laser Optics'98, LO'98 St. Petersburg Russia (1998)
• H. Hillmer: Ultrafast modulation of 1.55µm AlGaInAs/InP DFB QW lasers. In: 16th Int. Conf. on Coherent and Nonlinear Optics '98, ICONO '98, Moscow Russia (1998)
• H. Hillmer: Semiconductor lasers for high bit rate optical data transmission. (invited). In: 6th Int. Conf. on Industrial Lasers & Laser Applications'98, ILLA'98, Shatura (1998)
• B. Klepser, H. Hillmer: Thermal crosstalk of laser arrays and the influence on yield. In: Proc. 10th International Conference on Indium Phosphide and Related Materials, Tskuba Japan, pp. 295-298 (1998)
• H. Hillmer: Chirped DFB gratings using bent waveguides to tailor specific laser properties (invited). In: SPIE Proc. series Vol. 2713, pp. 139-149 (1996)
• H. Hillmer, A. Greiner, F. Steinhagen, R. Lösch, W. Schlapp, E. Binder, T. Kuhn, H. Burkhard: Carrier and photon dynamics in InAlGaAs/InP MQW laser structures: Influence of carrier transport on high frequency modulation. In: Hot Carriers in Semiconductors, pp. 583 (1996)
• H. Hillmer, A. Greiner, F. Steinhagen, R. Lösch, W. Schlapp, E. Binder, T. Kuhn, H. Burkhard: Carrier and photon dynamics in transversally asymmetric AlGaInAs/InP MQW lasers (invited). In: SPIE Proc. series, Vol. 2693, pp. 352-368 (1996)
• H. Hillmer, R. Lösch, W. Schlapp, F. Steinhagen, H. Burkhard: Strain-compensated MBE grown AlGaInAs/AlGaInAs/InP QWs for photonic devices. In: Proc. Eighth International Conference on Indium Phosphide and Related Materials IPRM ´96,

pp. 565-568 (1996)

• H. Hillmer, H. Zhu: Self-aligned processing techniques for semiconductor stripe lasers. In: SPIE Proc. series, Vol. 2886, Semiconductor Lasers II, pp. 25-33 (1996)
• H. Hillmer: Carrier and photon dynamics in vertically asymmetric high-speed InAlGaAs/InP MQW lasers. In: Lasers and Integrated Optoelectronics OE/LASE´96,

San Jose, California USA (1996)

• S. Marcinkevicius, H. Hillmer, R. Lösch, U. Olin: Carrier Dynamics in 1.55 µm InAlGaAs Quantum Well Laser Structures. In: Proc. Conference on Lasers and Electro-optics Europe CLEO/Europe, pp. 81 (1996)
• F. Steinhagen, H. Hillmer, R. Lösch, W. Schlapp, R. Göbel, E. Kuphal, H. Hartnagel, H. Burkhard: High-speed complex coupled strain-compensated AlGaInAs/InP 1.5 µm DFB laser diodes. In: Proc. Eighth International Conference on Indium Phosphide and Related Materials IPRM ´96, pp. 777-780 (1996)
• H. Zhu, H. Hillmer: Self-aligned processing techniques for semiconductor stripe lasers. In: Semiconductor Lasers II, SPIE proceedings series, Vol. 2886, pp. 25-33 (1996)
• H. Zhu, H. Hillmer, H. Burkhard, H.I. Hartnagel: A novel self aligned processing technique for mushroom-stripe lasers. In: Proc. th IEEE International Semiconductor Laser Conference, pp. 109-110 (1996)
• M. Zimmermann, S. Krämer, F. Steinhagen, H.H. and H. Burkhard, A. Ougazzaden, C. Kazmierski, A. Hangleiter: Experimental determination of the intraband relaxation time in strained quantum well lasers. In: Hot Carriers in Semiconductors, Plenum, New York, 1996, pp. 591 (1996)
• R. Zimmermann, S. Krämer, F. Steinhagen, H. Hillmer, H. Burkhard, A. Hangleiter: Parasitic-free study of carrier transport in asymmetric 1.55 µm MQW laser structures. In: Proc. Eighth International Conference on Indium Phosphide and Related Materials IPRM ´96, pp. 169-172 (1996)
• S. Bozorgui, H. Hillmer, A. Destrez, Z. Toffano: Chirped grating DBR lasers using bent waveguides. In: Proc., Volume 1. IEEE Lasers and Electro-Optics Society Annual Meeting 8th Annual Meeting, pp. 264-265 (1995)
• H. Burkhard, S. Mohrdiek, H. Schöll, H. Hillmer, S. Hansmann, A. Mattheus: Effects of injected light and optical feedback on directly modulated MQW lasers and OTDM multi-GBit/s system performance. In: Physics and Simulation of Optoelectronic Devices III, SPIE proceedings series, Vol. 2399, pp. 684 (1995)
• H. Hillmer: Chirped DFB gratings obtained by bent waveguides to tailor specific photonic device properties (invited). In: SPIE Proc. series, Vol. 3713, pp. 139-149 (1995)
• H. Hillmer, S. Hansmann, H. Burkhard, A. Grabmaier: Design and performance of advanced chirped grating DFB lasers. In: Technical digest of IOOC´95, pp. 36, FB1-3 (1995)
• H. Hillmer, S. Hansmann, H. Burkhard, A. Grabmaier, E. Kuphal: Application of DFB lasers with individually chirped gratings. In: Laser Diodes and Applications, SPIE Proc. series, Vol. 2382, pp. 211 (1995)
• H. Hillmer, W. Schlapp, R. Lösch: Chips aus dem Eis. In: Vision 1/95, pp. 50 (1995)
• H. Hillmer, H. Burkhard, E. Seebald, K. Kiesel: Ultrahigh resolution chirped distributed feedback gratings fabricated by electron-beam lithography using bent waveguides for low-cost photonic components. In: The 38th International symposium on electron, ion, and photon beams, pp. 2853-2858 (1995)
• H. Hillmer: Chirped DFB gratings using bent waveguides to tailor specific laser properties. In: 5th Int. Conf. Laser Technologies ´95, Industrial Lasers and Laser Applications ´95, ILLA´95, Shatura, 24.-26.4.1995 (1995)
• H. Hillmer: Chirped DFB gratings obtained by bent waveguides to tailor specific photonic device properties. In: 15th Int. Conf. on Coherent and Nonlinear Optics '95, ICONO '95 (1995)
• H. Hillmer: Chirped DFB gratings obtained by bent waveguides to tailor specific photonic device properties. In: 5th Laser Optics Conf. LO ´95, St. Petersburg Russia (1995)
• J. Kovac, H. Schmidt, C. Kaden, H.P. Gauggel, V. Hofsäß, J. Kuhn, H. Schweizer, A. Hase, H. Künzel, H. Hillmer: Carrier dynamics of gain-coupled and index-coupled InGaAs/InGaAlAs quantum well DFB lasers. In: Conference on Ultrafast Electronics and Optoelectronics, Dana Point, USA, Technical Digest (1995)
• F. Steinhagen, H. Hillmer, S. Hansmann, S.M. and R. Lösch, W. Schlapp, H. Walter, R. Göbel, H.W. Dinges, E. Kuphal, H.L. Hartnagel, H. Burkhard: AlGaInAs/InP 1.5 µm DFB laser diodes for high capacity transmission modules. In: Technical digest of IOOC´95, pp. 52, FB2-6 (1995)
• H.W. Dinges, H. Burkhard, H. Hillmer, R. Lösch, W. Schlapp: Spectroscopic ellipsometry, a useful tool to determine the refractive indices and to study the interfaces of InGaAs and InAlGaAs layers on InP in the wavelength range from 280nm to 1900nm. In: ICFSI-4 Jülich, Formation of Semiconductor Interfaces, Proceedings,

pp. 676-679 (1994)

• A. Greiner, T. Kuhn, H. Hillmer, S. Hansmann, H. Burkhard: Carrier transport in quantum well lasers: A comparison between different heterostructures. In: NATO ASI on Quantum transport in ultrasmall devices (1994)
• A. Greiner, T. Kuhn, H. Hillmer, S. Hansmann, H. Burkhard: Influence Of Carrier Transport On The Turn-on Delay In A Separate Confinement Heterostructure Quantum Well Laser. In: Proc. Conference on Lasers and Electro-Optics Europe, pp. 419-420 (1994)
• S. Hansmann, H. Walter, H. Hillmer, H. Burkhard: Novel method to optimize complex coupling coefficients by sampled gratings. In: Proc. th IEEE International Semiconductor Laser Conference, pp. 167-168 (1994)
• H. Hillmer, S. Hansmann, H. Burkhard, H. Walter, H. Janning, R. Göbel: Facet influence on wavelength tunability and linewidth-chirp under high bit rate modulation in InGaAs/InAlGaAs QW DFB lasers. In: Linear and Nonlinear Integrated Optics, SPIE proceedings series, Vol. 2212, pp. 200 (1994)
• H. Hillmer, H.L. Zhu, S. Hansmann, A. Grabmaier, K. Magari, H. Burkhard: Tailored DFB laser properties by individually chirped gratings using bent waveguides. In: Proc. th IEEE International Semiconductor Laser Conference, pp. 55-56 (1994)
• H. Hillmer: Exciton dissociation controlled diffusivities in thin GaAs/AlGaAs quantum wells, DBP-Telekom (1993)
• H. Hillmer, S. Hansmann, H. Burkhard: AlzGa1-x-zInxAsySb1-y a promising pentanary material system for optoelectronic devices - two dimensional vertical and parallel valence-band masses for [100] and [111] oriented substrates, DBP Telekom (1993)
• H. Hillmer, H. Zhu, H. Burkhard: Large wavelength tunability of asymmetric 3-section DFB lasers under cw and pulsed bias. In: Laser Diode Technology and Application, SPIE proceedings series, Vol. 1850, pp. 165 (1993)
• F. Steinhagen, R. Lösch, W. Schlapp, H. Nickel, S. Hansmann, H. Hillmer, H. Janning, H.L. Hartnagel, H. Burkhard: MBE grown strained and unstrained InGaAs/InAlGaAs MQW lasers. In: Proc. Fifth International Conference on Indium Phosphide and Related Materials, pp. 549-552 (1993)
• S. Hansmann, H. Hillmer, H. Burkhard: Theoretical and experimental investigation of inhomogeneously pumped DFB lasers. In: Proceedings ECOC´92, Berlin, pp. 233 (1992)
• H. Hillmer: Chirped DFB gratings for optoelectronic components-a new implementation method using bent waveguides. In: DBP-Telekom, FI 65TB31E (1992)
• H. Hillmer, H. Burkhard, S. Hansmann: Valence-band masses in different two-dimensional materials for the design of quantum devices, DBP Telekom (1991)
• H. Hillmer, S. Hansmann, H. Burkhard: 1.53 µm InGaAsP-InP first order Lambda/4 shifted DFB lasers with high coupling coefficients. In: Proc. Conference Digest Semiconductor Laser Conference 12th IEEE International, pp. 198-199 (1990)
• G. Bacher, A. Forchel, H. Hillmer, H. Nickel, W. Schlapp, R. Lösch: Studies of ambipolar transport in InGaAs/GaAs strained layer quantum wells. In: Proceedings of 20th International Conference on Semiconductor Physics, Thessaloniki (1989)
• H. Hillmer, G. Mayer, A. Forchel, K.S. Löchner, E. Bauser: Optical Time-of-Flight investigation of ambipolar carrier transport in specially designed GaAs/GaAlAs quantum well structures. In: Springer series in Electronics and Photonics, High speed electronics 22, pp. 97 (1986)
• F. Martelli, R. Zachai, H. Hillmer, G. Mayer: Radiative recombination of two dimensional carriers in Si-MOS structures: Time dependence. In: Proceedings of the 18th International Conference on the Physics of Semiconductors, Stockholm (1986)
• A. Forchel, B. Laurich, G. Tränkle, H. Hillmer, G. Mahler, T.X. Hoai, A. Axmann: High speed electron-hole plasma transport in Si. In: Proceedings of the 17th International Conference on the Physics of Semiconductors, San Francisco (1985)

• D. Löber, M.D.K. Hasan, S. Liebermann, M.S.Q. Iskhandar, S. Baby, J. Chen, E. Farrag, N. Ahmed, S. Liu, B. Elsaka. M.H. Qasim, G. Xu, H. Hillmer: “MEMS Smart Glass for Personalized Lighting and Energy Management in Buildings: Working Principles, Characterization, Active Light Steering, Thermal Management, Energy Saving Considering Different Locations on Earth, Comparison of Different Smart Glass Technologies”. Journal of Building Design and Environment, 2023;2(2):22962, https://doi.org/10.37155/2811-0730-0201-14 (2023)
• M. H. Qasim, J. Chen, M. S. Q. Iskhandar, M. K. Hasan, S. Baby, B. Elsaka, D. Löber, G. Xu, H. Hillmer: „ Advancements in Surface Modification and Coloring Technologies for MEMS-Based Smart Windows:  Ultra-Thin Highly Absorbing Films and C-V Measurements of Smart Glass as Sustainable Energy Solutions”, Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), ISBN 978-3-87480-385-4, Vol. 79, pp. 336-372 (2023)
• B. Elsaka, P. Kästner, E. Käkel, R. Donatiello, and H. Hillmer, Investigation of the influence of sublayer thickness on pairing of metallic MEMS shutter blades, (invited), Appl. Sci., 13, 1538 (2023), https://doi.org/10.3390/app13031538
• M. K. Hasan, S. Liebermann, M. S. Q. Iskhandar, D. Löber, Q. Li, G. Xu, and H. Hillmer,   Personalized Light Steering in Buildings Utilizing 2D Actuation in MEMS Micromirror Arrays, Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), Vol. 78, pp. 217-237, ISBN 978-3-87480-380-9  (2022)
• M. K. Hasan, S. Baby, S. Muringakodan, A. Nandakumar, M. S. Q. Iskhandar, V. Hillmer, Q. Li, G. Xu, and H. Hillmer: Energy Saving and Amortization Time Simulation for a Model Room with MEMS Smart Glazing, Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house) Vol. 77, pp. 163-188 (2021), ISBN 978-3-87480-369-4.
• H. Hillmer, C. Woidt, Aliaksei Kobylinskiy, Matthias Kraus, André Istock, M. S. Q. Iskhandar, R. Brunner and T. Kusserow: Miniaturized Interferometric Sensors with Spectral Tunability for Optical Fiber Technology—A Comparison of Size Requirements, Performance, and New Concepts, Photonics, Vol. 8., 332   (2021), doi.org/10.3390/photonics8080332
• H. Hillmer, C. Woidt, A. Istock, A. Kobylinskiy, D.T. Nguyen, N. Ahmed, R. Brunner and T. Kusserow: Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers. Nanomaterials 11(1), 164 (2021), DOI: 10.3390/nano110101641
• H. Hillmer, M.S.Q. Iskhandar, M.K. Hasan, S. Akhundzada, B. Al-Qargholi, A. Tatzel: MOEMS micromirror arrays in smart windows for daylight steering. J. Optical Microsystems 1(1), 014502-1 - 014502-18 (2021), DOI:10.1117/1.JOM.1.1.014502
• S. Nazemroaya, M. Iskhandar, Md K. Hasan, Q. Li, H. Hillmer: Concepts for clear View through 3D Structured Surfaces of MEMS Smart Glass: Design, Implementation, Characterization and Validation. Jahrbuch Oberflächentechnik, Leuze Verlag, (Yearbook surface technology, Leuze publishing house), Vol. 76, S. 101-115, ISBN: 978-3-87480-364-9 (2020)
• H. Hillmer, M. Iskhandar, Q. Li: Smart glass based on micromirror arrays: Fundamentals and applications in daylight steering, energy saving and personal lighting. In: Technical digest of 22nd Annual Meeting of China Association for Science and Technology, China Germany Young Scientists Forum, Qindao China, (2020)
• M. Khan, B. Al-Qargholi, M. Iskhandar, S. Akhundzada, A. Tatzel, H. Hillmer: MEMS-basierte Mikrospiegel-Arrays für eine aktive Lichtlenkung in intelligenten Fenstern. In: Jahrbuch Oberflächentechnik, Band 74, pp. 119-132, (2018)
• H. Hillmer, B. Al-Qargholi, M. M. Khan, N. Worapattrakul, H. Wilke, C. Woidt, A. Tatzel: Optical MEMS-based micromirror arrays for active light steering in smart windows. In: JJAP, Vol. 57, 08PA07, pp. 1-13, no. 8S2, (2018)
• H.Hillmer: High resolution 3D nanoimprint lithography. In: Verhandlungen mit der DPG, ISSN 0420-0195, 2017, S. 92
• B. Khudhair ; V. Viereck ; H. Hillmer: The Application of Micromirrors in Architecture to Yield more Natural Light. In:IGS, Intelligent Glass Solution (2014)
• A. Jäkel ; Q. Li ; V. Viereck ; H. Hillmer: Active Windows for Daylight Guiding Applications. In: A. Voß (Hrsg.): Nanotechnology and Energy : Pan Stanford Publishing, (2010)
• J. Sonksen ; M. Ahmad ; N. Storch ; H. Krause ; S. Blom ; A. Pötzl ; H. Hillmer: Controlling and Tuning the Emission of Semiconductor Optical Amplifier for Sensor Application by Means of Fiber Bragg Gratings. In: Proceedings of the 8th WSEAS International Conference on Microelectronics, Nanoelectronics, Optoelectronics (2009), S. 59-63
• V. Viereck ; Q. Li ; A. Jäkel ; H. Hillmer: Large-area applications of optical MEMS: micromirror arrays guide daylight, optimize indoor illumination. In: Photonik International 2 (2009), S. 48-49
• S. Wittzack ; F. Köhler ; X. Wang ; O. Setyawati ; T. Woit ; A. Albrecht ; M. Engenhorst ; S. Schudy ; C. Woidt ; M. Bartels ; H. Hillmer: Hochpräzise Nanoimprint-Templates für 3D-Strukturen (invited). In: Galvanotechnik (2009), Band 100, Heft 10, S. 2376-2382
• M. Bartels ; F. Köhler ; S. Wittzack ; X. Wang ; H. Hillmer: Ultra precise Nanoimprint templates (invited). In: NanoS 03.08 (2008), S. 18-22
• N. Dharmarasu ; H. Hillmer: Compound semiconductors. In: Y.B. Gianchandani ; O. Tabata ; H. Zappe (Hrsg.): Comprehensive Microsystems : Elsevier, Amsterdam (2008), S. 25-55
• H. Hillmer: Die vielen Väter des Transistors - Meilensteine in der Geschichte des Festkörperverstärkers (invited). In: Physik in unserer Zeit (2008)
• H. Hillmer: Die Meilensteine bei der Entwicklung des Transistors (invited). In: Zeitschrift für Physik (2008)
• V. Viereck ; J. Ackermann ; Q. Li ; A. Jäkel ; J. Schmid ; H. Hillmer: Sun Glasses for Buildings based on Micro Mirror Arrays: Technology, Control by Networked Sensors and Scaling Potential (invited). In: 5th International IEEE Conference on Networked Sensing Systems(INSS) 2008.,Technical Digest (2008), S. 135-139
• H. Wacker ; J. Börcsök ; H. Hillmer: Redundant Data Transmission and Nonlinear Codes (invited). In: WSEAS Transactions on Communications 7 (2008), S. 594-604
• H. Hillmer ; S. Hansmann: Semiconductor lasers. In: F. Träger (Hrsg.): Springer Handbook of Lasers and Optics : Springer Verlag, (2007), S. 695-726
• H. Hillmer ; S. Irmer ; F. Römer ; A. Hasse ; J. Daleiden ; C. Prott ; S. Hansmann ; M. Strassner: MOEMS vertical-air-cavity filters are widely and continuously tunable around 1.55 microns. In: SPIE Newsroom 10.1117/2.1200601.0005 (2006), S. 1-4 URL..
• H. Hillmer ; J. Salbeck: 8. Materialien der Optoelektronik - Grundlagen und Anwendungen. In: R. Kassing (Hrsg.): Bergmann/Schaefer: Lehrbuch der Experimentalphysik, Festkörper : Walter de Gruyter Verlag, (2005), S. 707-820
• H. Hillmer: Periodische Nanostrukturen in der Photonik - Grundlagen, natürliche Vorbilder, Herstellung und Anwendungen in der hochbitratigen Kommunikationstechnik. In: Telekommunikation Aktuell 58 (2004), S. 10-18
• H. Hillmer ; F. Träger: Einführung in die Nanotechnologie. In: Telekommunikation Aktuell 58 (2004), S. 1
• H. Hillmer ; R. Germann: Introductory article: Photonic Materials for Optical Communications. In: MRS Bulletin 28 (2003), S. 340 - 344
• H. Hillmer: Prolegomena und Laudatio zu Von der Radartechnik zur modernen Kommunikationstechnik (invited). In: Telekommunikation Aktuell 56 (2002), S. 1 - 2
• H. Hillmer ; J. Daleiden ; C. Prott ; F. Römer ; S. Irmer ; V. Rangelov ; A. Tarraf ; S. Schüler ; M. Strassner: Potential for micromachined actuation of ultra-wide continuously tunable optoelectronic devices (invited). In: Applied Physics B: Lasers and Optics 75 (2002), S. 3-13 URL..
• H. Hillmer: Der Transistor - die Entwicklung von den Anfängen bis zu den frühen integrierten Schaltungen. In: Der Fernmeldeingenieur 54 (2000), S. 1 - 107
• H. Hillmer ; S. Marcinkevicius: Optically detected carrier transport in III/V semiconductor QW structures: experiments, model calculations and applications in fast 1.55 µm laser devices (invited). In: Applied Physics B: Lasers and Optics 66 (1998), S. 1-17 URL..
• H. Hillmer: Heterostructures in the AlGaInAs material system: MBE growth and characterization (review paper). In: Research Trends 3 (1997), S. 159-185
• H. Hillmer: Bent waveguides improve DFB laser performance : Fiberoptic components handbook (invited). In: Laser focus world 31 (1995), S. 117-122

• H. Hillmer, Ringshutter  EU 3964877 (2024)
• R. Brunner, M. Kraus, A. Kobylinskiy, H. Hillmer: Filterbasiertes Spektrometer, DE 10 2022 122 543 B4 (2024)
• H. Hillmer; G. Xu: Lichttechnisches modul für eine gebäudefassade (Lighting module for a building facade). EP 4102024 B1 (2024)
• B. Khudhair; V. Viereck; H. Hillmer: Verfahren zur Herstellung einer Mikrostruktur in einer Fotolithographietechnik (Microstructure and method of producing a microstructure in a photolithography technique). EP 3362854 B1 (2022)
• H. Hillmer: Verfahren Und Anordnung Zur Herstellung Von Nano-Imprintstempeln Sowie Mikromechanisch Abstimmbares Filter/Detektor-Array (Method and arrangement for the production of nano-imprint stamps). EP 2268569 B1 (2019)
• H. Hillmer; F. Pilger; S. Reuter; M. Smolarcyk; N. Worapattrakul: Nano-Formgebungsstruktur (Nanoshaping-Structure). EP 2771161 B1 (2017)
• R. Brunner; H. Hillmer; A. Gatto: Spektralsensor zur spektralen Analyse einfallenden Lichts, DE 10 2014 108 138 B4 (2016)
• H. Hillmer : Optisches Filter und Verfahren zu seiner Herstellung. DE 10 2006 039 071 (2012)
• H. Hillmer; T. Kusserow: Optische Dünnschichtstruktur mit einer verteilten Kavität. DE 102009026449 B4 (2014)
• H. Hillmer: Sensorvorrichtung und Verfahren zur Ermittlung einer physikalischen Größe (Sensor device and process for determining a physical value). DE 10 2004 037519 B4 (2008), US 81 20075 B2 (2012), EP 1771720 B1 (2012)
• H. Hillmer: Mikrolaser-Bauelement und Verfahren zu dessen Herstellung. DE 103 31 586 B4 (2006)
• H. Hillmer ; J. Schmid ; I. Stadler: System zur Gestaltung von großen Flächen an Gebäuden oder mobilen Systemen durch großflächige Beugungsmuster. DE 103 58 812 B4 (2006)
• H. Hillmer ; J. Schmid ; I. Stadler: Mikrospiegelarray. DE 103 58 967 B4 (2006), EP 1700152 B1 (2008), US 7677742 B2 (2010), AT 407382 E (2008)
• E. Ataro; J. Daleiden; D. Gutermuth; H. Hillmer; S. Irmer; C. Prott; F. Römer; A. Tarraf: Verfahren zur Herstellung eines mikromechanischen Bauelements und damit hergestelltes Bauelement. DE 103 57 421 B4 (2008)
• J. Daleiden; H. Hillmer; S. Irmer; C. Prott; V. Rangelow; F. Römer; S. Schüler; A. Tarraf: Mikromechanisch aktuierbares, optoelektronisches Bauelement. DE 103 18 767 B4 (2008)
• J. Daleiden; H. Hillmer; S. Irmer; A. Tarraf: Leitfähige Haltepfosten in luftspaltbasierenden, optoelektronischen Bauelementen. DE 103 53 546 B4 (2007)
• W. Betz; R. Göbel; H. Hillmer; R. Lösch; A. Pöcker; W. Schlapp: Verfahren zur Herstellung einer kalibrierten Längenskala im Nanometerbereich für technische Geräte, die der hochauflösenden bis ultrahochauflösenden Abbildung von Strukturen dienen (Method for manufacturing a calibrated scale in the nanometer range for technical devices used for the high resolution or ultrahigh-resolution imaging of structures and such scale). DE 196 04 348 C2 (2003), US 6231668 B1 (2001).
• H. Hillmer ; B. Klepser: Verfahren und Anordnung zur Wellenlängen-Abstimmung einer optoelektronischen Bauelemente-Anordnung (Method and device for tuning the wavelength of an optoelectronic component arrangement). EP 1036428 B1 (2001), CA 2299452 C (2005), AT 206251 E (2001), US 7054340 B1 (2006)
• H. Hillmer ; B. Klepser: Wellenlängenabstimmbares optoelektronisches Bauelement. EP 976183 B1 (2002), US 6,208,793 B1 (2001), JP 4232912 B2 (2001), AU 6090198 A (1998), AT 219609 E (2002)
• H. Hillmer; B. Klepser: Verfahren zur Wellenlängen-Abstimmung einer optoelektronischen Bauelemente-Anordnung. EP 956625 B1 (2004), CA 2279632 C (2005), AT 265099 E (2004), US 6219362 B1 (2001)
• H. Hillmer: Verfahren zur Ausnutzung scheibenförmigen Ausgangsmaterials bei der Herstellung optoelektronischer Bauelemente mit Gittern variabler Gitterperiode (Method for optimized utilization of base material in the manufacture of optoelectronic components with variable-period gratings). EP 747739 B1 (2006), US 5834158 A (1998), CA 2177650 C (2007), AT 326020 E (2006)
• H. Hillmer: Optoelektronisches Halbleiter-Bauelement mit verbesserter Wellenlängen-Durchstimmbarkeit und reduzierter optischer Linienbreite. DE 4420389 B4 (2007)
• H. Hillmer: Verfahren zur Herstellung eines optoelektronischen Bauelements mit einer definierten axialen Variation des Kopplungskoeffizienten und definierter axialer Verteilung der Phasenverschiebung (Process for the production of an optoelectronic component having a defined axial variation of the coupling coefficient and a defined axial distribution of the phase shift). US 5601731 A (1997)
• H. Hillmer: Optoelektronisches Multi-Wellenlängen Bauelement (Optoelectronic Multiwavelength component). DE 44 32 410 B4 (2007), EP 704946 B1 (2003), US 5,600,743 A (1997), AT 215353 E (2003)

• Winkelbasiertes Filterspektrometer 2023 
• R. Brunner, M. Kraus, A. Kobylinskiy, H. Hillmer,  Filterbasiertes Spektrometer, DE 10 2022 122 543 A1 (2022)
• H. Hillmer, G. Xu, MEMS Display WO 2023117196 A1 (2022), EP 4202528 A1 (2021)
• G. Schulze, G. Xu, Transparente Verbundstruktur mit einer Mikrospiegelvorrichtung, DE 10 2021 120 910.2 (2021)
• H. Hillmer, Spiegel-Shutter Array, DE 10 22020 123 024 A1 (2020)
• M. Feldmann; U. Ha; H. Heim; H. Hillmer; P. Sälzer: Kunststoffverbundwerkstoff mit mindestens einem in eine Kunststoffmatrix eingebrachten Füllstoff. DE 10 2018 119 964 A1 (2018)
• D. Bienhaus; H. Hillmer: Bauelement zur Darstellung von Symbolen und damit hergestellte optische Anzeigevorrichtung. DE 10 2008 009 215 A1 (2008)
• H. Hillmer ; M. Rohrbach: Verfahren und Vorrichtung zur Reflexion von Strahlung im EUV- oder Röntgen-Wellenlängenbereich sowie Verfahren zur Herstellung eines Materials mit einem dafür geeigneten Brechungsindex. DE 10 2005 027 422 A1 (2005)
• H. Hillmer; T. Baumert: Multimembranbasiertes optoelektronisches Bauelement mit photonischer Kristallstruktur. (2004)
• H. Hillmer; J. Schmid; I. Stadler: Oberflächengestaltung mit 2-dimensionalen Anordnungen von diffraktiven, optischen Elementen. DE 10358937 A1 (2003)
• H. Hillmer; B. Klepser: Optoelektronisches Bauelement mit räumlich einstellbar Temperaturverteilung. (Optoelectronic component). DE 19717545 A1 (1997), WO 1998038710 A1 (1998), AU 1998067252 A (1998)
• H. Hillmer: Optoelektronisches Bauelement mit einem Rückkopplungsgitter mit axial veränderbarer Korrugationsperiode. DE 19500135 A1 (1995)
• H. Hillmer: Optoelektronisches Bauelement mit axialer Gitterperiodenmodulation. DE 19500136 A1 (1995)
• S. Hansmann; H. Hillmer: Optoelektronisches Bauelement mit verteilter Rückkopplung und variierbarem Kopplungskoeffizient. DE 4334525 A1 (1993)
• H. Hillmer: 3-Sektions-DFB-Halbleiterlaser mit erweitertem Wellenlängendurchstimmungsbereich. DE 4301830 A1 (1993)
• H. Hillmer: Optoelektronisches Bauelement mit Rückkopplungsgitter, mit axial quasi-kontinuierlich und nahezu beliebig variierbarem Gitterkopplungskoeffizienten, mit quasi-kontinuierlich axial verteilbarer Brechungsindex Variation, sowie mit axial nahezu beliebig verteilbarer und variierbarer Phasenverschiebung. DE 4322164 A1 (1993)
• H. Hillmer: Auf DFB oder DBR-Gitter basierendes optoelektronisches Bauelementmit quasi-kontinuierlich axial verteilbarer Brechungsindex Variation, mit axial beliebig verteilbarer und variierbarer Phasenverschiebung, sowie mit axial quasi-kontinuierlich variierbarem Gitter-Kopplungskoeffizienten. DE 4322163 A1 (1993)
• H. Hillmer: Lichtwellenleiter zur kontinuierlichen Phasenverschiebung der DFB Gitterperiode für auf DFB Gitterfeldern mit konstanter Gitterperiode basierende optoelektronische Elemente. DE 423350 A1 (1992)

• SPIE  Webinar “Microsystems for Spectral Sensing” Miniaturized static and tunable Fabry Pérot filter arrays for optical spectral sensorics -  comparison with other methodologies, 23.03.2023, https://www.spiedigitallibrary.org/jom-webinar-microsystems-for-spectral-sensing.
• Smart glass MEMS micromirror arrays for personalized daylight steering, energy saving, and 3D self-assembly. The Society of Chinese Physicists in Germany (GCPD) annual meeting, Berlin, 16. 09. 2022 
• Optical MEMS sensors and actuators for smart personal environments: Micromirror arrays for personalized light steering and energy saving, Fabry Pérot filter arrays, IHFG, University of Stuttgart 12.5.2022
• Physics of various miniaturized spectrally tunable sensors: comparison of limits in minimum size and performance, International Webinar on Physics, Optics,  Photonics & Lasers, online conference, March 04-05, 2022
• Warum Miniaturisierung von MEMS Strukturen auf großen Flächen ?   Potenziale, gesellschaftlicher Nutzen für den Klimawandel und Herausforderungen für die Messtechnik,  35. Messtechnisches Kolloquium, Bruderkirche, Kassel, 22.9.2021
• Intelligente Fenster durch nanotechnologische und mikrosystemtechnische Technologien,   Tagungsreihe: Materials for the European Green Deal, Hessen Agentur, online-presentation 11.7.2021
• Smart Glass based on micromirror arrays, Key note speech, Association for Science and Technology, Qingdao (2020)
• Optical MEMS based micromirror arrays: fabrication, characterization and potential applications in smart active windows, Optical MEMS and Nanophotonics, Daejeon, Südkorea (2019)
• “Presentation on Project Nanoscale”, China Society for the Promotion of Science and Technology Commercialization, Peking, China (2018)
• Smart personal environments based on optical sensors and actuators:  Active windows and nanospectrometers in applications and business case”, Sino German Science and Technology Park, Jimo, China (2018)
• Sensors and Actuators for Optical Smart Personal Environments: Design, Micromachining, Nanoimprinting and Characterization, MJIIT University of Technology, Malaysia (2018)
• H. Hillmer: Methodology of 3D nanostructurization: applications for sensors and actuators in smart personal environments and for pulmonal drug application using 3D nanoparticles, Leibniz-Institut für Festkörper- und Werkstoffforschung (IFW), Dresden, 02.02.2018
• H. Hillmer: MASH - Multifunctional Anisotropically Shaped Hybrid-Particles, CINSaT Newsletter, pp. 15-16, 1/2018
• H. Hillmer: Der Laser: Aufbau, Funktionsweise und Anwendungen(mit in den Vortrag integrierter Lasershow), VDE Kassel, 14.12.2017
• H. Hillmer: Transmission controllable glazing, NEXT Buildings Newsletter, Dez. 2017, p. 10
• H. Hillmer: Smart personal environments based on micromachined nanophotonics for active windows and food quality sensorics, Keio University, Tokyo, Japan, 24.11.2017
• H. Hillmer: MEMS based micromirror arrays ,MOC17, Tokyo, Japan, 22.11. 2017
• H. Hillmer: Report on workpackage 2 - R&D on transmission controllable glazings, Lyon, Frankreich, 19.10.2017
• H. Hillmer: Schwerpunkt Elektronik und Photonik, Einführungstage FB16, Kassel,17.10.2017
• H. Hillmer: Faszination Elektrotechnik, Tag der Technik, Kassel, 27.09.2017
• H. Hillmer: Nanophotonics for medical-, information- and engergy-technology, International Summer University (ISU) Nano, Kassel, 12.07.2017
• H. Hillmer, Laudatio Bertha-Benz Preis, Heidelberg, 01.06.2017
• H. Hillmer: Schwerpunkt Elektronik und Photonik, Tag der offenen Tür, Universität Kassel, 20.04.2017
• H. Hillmer: High resolution 3D nanoimprint lithography; Symposium on Nanostructuring beyond Conventional Lithography, Dresden, 22.03.2017
• H. Hillmer: 3D Nanostructures, Frühjahrkolloquium CINSaT, Friedrichroda, 15.02.2017
• H. Hillmer: Functionalizable particles with magnetic properties, CINSaT Newsletter, pp.14-15, 1/2017
• H. Hillmer; A. Istock; Y. Shen; U.-M. Ha; T. Meinl; C. Woidt: Potentiale einer berührungslosen optischen Messtechnik für Backindustrie mit dem Nanospektrometer Sensor. In: Baker's Day, Bremerhaven, 3.3.2016, Technical Digest, S. 11-12 (2016)
• H. Hillmer: High Resolution 3D Nanoimprint and MEMS Technologies for Energy Saving, Nanosensorics and Pharmacy (invited). In: Technical Digest of SINC 2014, Riyadh, 32-34 (2014)
• Fabrication of Nanospectrometers for Medical Devices with High Resolution 3D Nanoimprint Lithography,Symposium on Nanoimprint Lithography - the big picture, Delft University of Technology, Netherlands, 27.06.2012
• Nanotechnology for advanced energy applications: Micro-mirror arrays for intelligent light steering, 1st Saudi International Nanotechnology Conference 2010, Riyadh, Saudi Arabien, 29.11.2010
• Micromachining: Foundations, Technological Fabrication and Selected Applications such as "Sunglasses for the Office Window" (lecture and experiments), International Summer School "Act-Control-Move: Beyond Networked Sensors" + "Internet of things", Leibniz Zentrum für Informatik Dagstuhl, organisiert von ETH Zürich, 17.8.2010
• High vertical resolution 3D nanoimprint technology and its application in optical nanosensors (invited talk), International Conference on advances in molecular nonlinear optics AMARIS, Paris-Cachan, 28.5.2010
• Sonnenlichtlenkende Mikrospiegelarrays für effiziente Energietechnologien (invited talk), 8.GRE-Kongress "Effizienz Bauen" Kassel, 23.4.2010
• J. Sonksen ; M. Ahamd ; N. Storch ; H. Krause ; S. Blom ; A. Pötzl ; H. Hillmer: Controlling and Tuning the Emission of Semiconductor Optical Amplifier for Sensor Application by Means of Fiber Bragg Gratings. In: 8th WSEAS International Conference on Microelectronics, Nanoelectronics, Optoelectronics (MINO ´09) (2009)
• Sun Glasses for Buildings based on Micro Mirror Arrays: Technology, Control by Networked Sensors and Scaling Potential (invited), 5th In. Conf. On Networked Sensing Systems (INSS), Kanazawa, Japan, 19.6.2008
• H. Wacker ; J. Börcsök ; H. Hillmer: Redundant Data Transmission via Different Types of Binary Channels (invited). In: Proceedings of the 7th WSEAS Int. Conf. on Applied Computer & Applied Computational Science (ACACOS ´08) (2008), S. 609-615
• H. Hillmer ; T. Kusserow ; N. Dharmarasu ; S. Irmer ; J. Daleiden ; A. Hasse ; M. Bartels ; B. Vengatesan ; T. Hayakawa: Micromachined tunable 1.55µm vertical cavity, multiple air-gap filters and lasers: fabrication, characterization, scaling potential and applications (invited). In: technical Digest, OECC/IOOC 2007 Yokohama, 12E2-1 (2007), S. 428
• H. Hillmer ; J. Schmid: Tandem Vortrag: Nano- und Mikrotechnologien im Dienste der nachhaltigen Entwicklung. In: 4. Nanotechnologieforum Hessen: What´s next for International Nanomarkets (2007)
• H. Hillmer: Micromirror arrays: sun glasses for buildings. (invited, key note). In: NanoEquity Europe, Hilton Frankfurt (2007)
• H. Hillmer: Nanotechnology in optics: foundations, implementations, applications and future potential. In: 6th WSEAS International Conference on APPLIED COMPUTER SCIENCE (ACS´06) (2006)
• H. Hillmer: Wavelength division multiplexing (WDM) for secure optical data communication in industrial computers, process control and fabrication systems. In: 6th WSEAS International Conference on APPLIED COMPUTER SCIENCE (ACS´06) (2006)
• H. Hillmer ; A. Tarraf ; F. Riemenschneider ; S.I. and H.Halbritter ; J. Daleiden ; F. Römer ; C. Prott ; E. Ataro ; A. Hasse ; M. Strassner ; S. Hansmann ; P. Meissner: Wide continuously tunable 1.55µm vertical air-cavity wavelength selective elements for filters and VCSELs using micromachined actuation (Invited Paper) (Proceedings Paper). In: SPIE Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks (2005), S. 14-28
• J. Daleiden ; S. Irmer ; E. Ataro ; C. Prott ; V. Rangelov ; F. Römer ; M. Strassner ; A. Tarraf ; H. Hillmer: Continuously tunable air-gap micro-cavity devices for optical communication systems. In: SPIE Proc. Vol. 4871 (2003), S. 145-159
• H. Hillmer ; J. Daleiden ; S. Irmer ; F. Römer ; C. Prott ; A. Tarraf ; M. Strassner ; E. Ataro ; T. Scholz: Potential of micromachined photonics: miniaturization, scaling and applications in continuously tunable vertical air-cavity filters (invited). In: SPIE Proc. series Vol. 4947 (2003), S. 196-211
• H. Hillmer ; J. Daleiden ; C. Prott ; F. Römer ; S. Irmer ; E. Ataro ; A. Tarraf ; D. Gutermuth ; I. Kommallein ; M. Strassner: Ultrawide continuously tunable 1.55µm vertical air-cavity wavelength-selective elements for VCSELs using micromachined electrostatic actuation (invited). In: SPIE Proc. series Vol. 5246 (2003), S. 18-32
• H. Hillmer: Ultra-wide continuously tunable 1.55µm vertical air-cavity wavelength selective elements for VCSEL´s using micromachined electrostatic actuation.. In: ITCOM 2003, Orlando, USA (2003)
• H. Hillmer: Potential of micromachined photonics: miniaturization, scaling and applications in continuously tunable vertical air-cavity filters.. In: Phot. Fabr. Europe 2002, Brügge, Belgium (2002)
• H. Hillmer: Continuously tunable air gap microcavity devices for optical communication systems. (invited). In: ITCOM 2002, Boston, USA (2002)
• H. Hillmer ; C. Prott ; M. Strassner ; N. Chitica ; J. Daleiden: Mikrosystemtechnische Konzepte in der optischen Datenübertragung: Neuartige abstimmbare DFB-Laser und Bragg-Filter (invited). In: Tagungsband "Optik in der Rechentechnik", Hagen 27.-28.9.2000 (2000), S. 75-85
• H. Hillmer ; B. Klepser: Semiconductor lasers for high bit rate optical data transmission - Investigations to increase the yield of laser arrays (invited). In: SPIE Proc. series, Vol. 3688 (1998), S. 308-317
• H. Hillmer ; S. Marcinkevicius: Ultrafast modulation of 1.55µm AlGaInAs/InP DFB QW laser structures: optically detected carrier dynamics, limiting mechanisms and applications (invited). In: SPIE Proc. series, Vol. 3734 (1998), S. 282-293
• H. Hillmer ; S. Marcinkevicius: Optically detected carrier transport and capture in III/V- semiconductor QW structures: high resolution experiments, model calculations and applications in fast 1.55µm lasers (invited). In: SPIE Proc. series, Vol. 3683 (1998), S. 196-207
• H. Hillmer: Semiconductor lasers for high bit rate optical data transmission. (invited). In: Semiconductor Laser workshop, Optoelectronic of mesoscopic solids Marburg, Germany (1998)
• H. Hillmer: Optically detected carrier transport and capture in III/V-semiconductor QW structures: high resolution experiments, model calculations and applications in ultrafast 1.55µm lasers. In: IX Conference on Laser Optics'98, LO'98 St. Petersburg Russia (1998)
• H. Hillmer: Ultrafast modulation of 1.55µm AlGaInAs/InP DFB QW lasers. In: 16th Int. Conf. on Coherent and Nonlinear Optics '98, ICONO '98, Moscow Russia (1998)
• H. Hillmer: Semiconductor lasers for high bit rate optical data transmission. (invited). In: 6th Int. Conf. on Industrial Lasers & Laser Applications'98, ILLA'98, Shatura (1998)
• H. Hillmer: Chirped DFB gratings using bent waveguides to tailor specific laser properties (invited). In: SPIE Proc. series Vol. 2713 (1996), S. 139-149
• H. Hillmer ; A. Greiner ; F. Steinhagen ; R. Lösch ; W. Schlapp ; E. Binder ; T. Kuhn ; H. Burkhard: Carrier and photon dynamics in transversally asymmetric AlGaInAs/InP MQW lasers (invited). In: SPIE Proc. series, Vol. 2693 (1996), S. 352-368
• H. Hillmer: Carrier and photon dynamics in vertically asymmetric high-speed InAlGaAs/InP MQW lasers. In: Lasers and Integrated Optoelectronics OE/LASE ´96, San Jose, California USA (1996)
• H. Hillmer: Chirped DFB gratings obtained by bent waveguides to tailor specific photonic device properties (invited). In: SPIE Proc. series, Vol. 3713 (1995), S. 139-?149
• H. Hillmer: Chirped DFB gratings using bent waveguides to tailor specific laser properties. In: 5th Int. Conf. Laser Technologies ´95, Industrial Lasers and Laser Applications ´95, ILLA´95, Shatura, 24. - 26.4.1995 (1995)
• H. Hillmer: Chirped DFB gratings obtained by bent waveguides to tailor specific photonic device properties. In: 15th Int. Conf. on Coherent and Nonlinear Optics '95 , ICONO '95 (1995)
• H. Hillmer: Chirped DFB gratings obtained by bent waveguides to tailor specific photonic device properties. In: 5th Laser Optics Conf. LO ´95, St. Petersburg Russia (1995)