2015

J.C. Shrestha, S. Blom, B. Witzigmann, H. Hillmer, Investigation of Mode Spacing and Loss Influence on Relative Intensity Noise of Asymmetric Dual Mode Semiconductor Laser Sensors, IEEE Sensors Journal, Vol. 15, pp. 6619-6624 (2015).

A. Shedbalkar, Z. Andreev, and B. Witzigmann, Simulation of an indium gallium nitride quantum well light-emitting diode with the non-equilibrium Green’s function method, Phys. Stat. Sol. B, 1-6 (2015), Nov. 2015.

M. Bjelica, B. Witzigmann, Optimization of 1.55um quantum dot edge emitting lasers for narrow spectral linewidth, Springer Optical and quant. El., Dec 2015, accepted for publication.

M. Virgilio, B. Witzigmann, G. Bolognini, S. Guha, T. Schroeder, and G. Capellini, CMOS-compatible optical switching concept based on strain-induced refractive-index tuning, Optics Express Vol. 23, Issue 5, pp. 5930-5940 (2015).

J. Piprek, F. Römer and B. Witzigmann, On the uncertainty of the Auger recombination coefficient extracted from InGaN/GaN light-emitting diode efficiency droop measurements, APPL. PHYS. LETT., 106, 101101 (2015).

F. Römer and B. Witzigmann, Acceptor activation model for III-nitride LEDs, Journal of Computational Electronics, June 2015, Volume 14, Issue 2, pp 456-463.

A. Engelhardt, J. Kolb, F. Roemer, U. Weichmann, H. Moench, and B. Witzigmann, Temperature dependent investigation of carrier transport, injection, and densities in AlGaAs based multi-quantum-well active layers for vertical-surface emitting lasers, SPIE Optical Engineeering, 2015, to appear.

F. Römer and B. Witzigmann, Acceptor Impurity Activation in III-nitride Light Emitting Diodes, Appl. Phys. Lett. 106, 021107 (2015).

J.P. Reithmaier, S. Banyoudeh, A. Abdollahinia, A. Becker, V. Sichkovskyi, O. Eyal, G. Eisenstein, M. Bjelica, B. Witzigmann, G. Moille, S. Combrie, A. DeRossi, InP-Based Nanostructured Semiconductors for Telecom Applications, 5th French-Korean workshop, Münster-Schwarzach, Germany, Dec 2015.

B. Avinc, M. Rychetsky , K. Bellmann, I. Koslow, T. Wernicke, M. Narodovitch, M. Lehmann, S. Neugebauer, A. Strittmatter, B. Witzigmann, and M. Kneissl, Determination of polarization fields in InAlN/GaN het- erostructures by capacitance-voltage-measurements, DPG Conference, Regensburg, Germany, April 2015.

M. Bjelica and B. Witzigmann, Simulation and analysis of 1.55 quantum dot lasers designed for ultra-narrow spectral linewidth, NUSOD Conference 2015, Taipei, Taiwan.

F. Roemer and B. Witzigmann, Effect of Doping and Impurities on the Efficiency of III-Nitride Light Emitting Diodes, NUSOD Conference 2015, Taipei, Taiwan.

A. Becker, V. Sichkovskyi, M. Bjelica, O. Eyal, P. Baum, A. Rippien, F. Schnabel, B. Witzigmann, G. Eisenstein and J. Reithmaier, InP-based Narrow-Linewidth Tunable Quantum Dot Distributed Feedback Laser for Coherent Optical Communication, Compound Semiconductor Week, Santa Barbara, US, July 2015.

Annette Becker, Marko Bjelica, Vitalii Sichkovskyi, Anna Rippien, Florian Schnabel, Philipp Baum, Bernd Witzigmann and Johann Peter Reithmaier, InP-based narrow-linewidth widely tunable QD-DFB-lasers, ITG Conference, Leipzig, April 2015.

J.P. Reithmaier, V. Sichkovskyi, A. Becker, M. Bjelica, B. Witzigmann, D. Gready, G. Eisenstein, InP based high-gain QD material for high-speed and narrow linewidth applications, PQE Conference, Utah, US, Jan. 2015, invited.

Annette Becker, Marko Bjelica, Vitalii Sichkovskyi, Anna Rippien, Florian Schnabel, Philipp Baum, Bernd Witzigmann and Johann Peter Reithmaier, InP-based narrow-linewidth widely tunable QD-DFB-lasers, ITG Conference, Leipzig, April 2015.

B. Witzigmann, A theoretical study of III-nitride nanowire arrays for emission and detection, EMN Optoelectronics Conference, Beijing, China, April 24-27, 2015.

B. Witzigmann, Simulation of ordered III-V nanwire arrays for light emission and detection, MRS Fall meeting, Warsaw, Poland, October 2015, invited.

Z. Andreev, A. Shedbalkar, and B. Witzigmann, The non-equilibrium Greens Function method for semiconductor light emitting diodes, AMASIS Conference, Berlin, March 2015.

B. Witzigmann, A theoretical study of ordered III-V nanowire arrays for light emission and detection, Heraeus Seminar, Bad Honnef, March 2015.