Publikationen

Precision spectroscopy and laser-cooling scheme of a radium-containing molecule.
S.M. Udrescu, S.G. Wilkins, A.A. Breier M. Athanasakis-Kaklamanakis, R.F. Garcia Ruiz, M. Au, I. Belošević, R. Berger, M.L. Bissell, C.L. Binnersley, A.J. Brinson, K. Chrysalidis, T.E. Cocolios, R.P. de Groote, A. Dorne, K.T. Flanagan, S. Franchoo, K. Gaul, S. Geldhof, T.F. Giesen, D. Hanstorp, R. Heinke, Á. Koszorús, S. Kujanpää, L. Lalanne, G. Neyens, M. Nichols,
H.A. Perrett, J.R. Reilly, S. Rothe, B. van den Borne, A.R. Vernon, Q. Wang, J. Wessolek, X.F. Yang & C. Zülch.
Nature Physics (2024).

Ionization potential of radium monofluoride

SG Wilkins, BS Cooper, Q Wang, KT Flanagan, RF Garcia Ruiz, RW Field, FP Gustafsson, CL Binnersley, I Belošević, S Geldhof, S Kujanpää, CM Ricketts, RP de Groote, R Berger, AR Vernon, S Franchoo, A Sunaga, C Zülch, AJ Brinson, HA Perrett, L Lalanne, A Borschevsky, A Dorne, SM Udrescu, LF Pašteka, J Wessolek, E Eliav, K Chrysalidis, ML Bissell, M Au, AA Kyuberis, AA Breier, Y Zhou, R Heinke, M Nichols, S Rothe, F Wienholtz, K Gaul, JR Reilly, TF Giesen, Á Koszorús, XF Yang, TE Cocolios, B Borne, D Hanstorp, G Neyens

arXiv: 2408.14673 (2024)

High-resolution infrared spectra and rovibrational analysis of the v12 band of propylene oxide

Karel Vávra, Eileen Döring, Jan Jakob, Fabian Peterß, Matin Kaufmann, Pascal Stahl, Thomas F Giesen, Guido W Fuchs

Royal Society of Chemistry (2024)

Vibrationally Resolved Absorption and Fluorescence Cross Sections of Adamantane in the Far-ultraviolet Spectral Range on an Absolute Scale.
L. Marder, A. Breier, N. de Oliveira, P. Reiss, P. Schmidt, C. Ozga, C. Küstner-Wetekam, T. Giesen, L. Nahon, A. Hans, A. Knie, and A. Ehresmann.
The Astrophysical Journal Supplement Series, 267:23 (2023)

Ro-vibrational Spectrum of Linear Dialuminum Monoxide (Al2O) at 10 μm.
D. Witsch, E. Döring, A. A. Breier, J. Gauss, T. F. Giesen, G. W. Fuchs.
J. Phys. Chem. A 2023, 127, 17, 3824–3831 (2023).

Opportunities for Fundamental Physics Research with Radioactive Molecules.
Arrowsmith-Kron, G., Athanasakis-Kaklamanakis, M., Au, M., Ballof, J., Berger, R., Borschevsky, A., Breier, A. A., … Giesen, T.F. ... & Yang, X.
arXiv preprint: 2302.02165. (2023)
Journal of Physics G-Nuclear and Particle Physics (Accessed October 24, 2023)

Recent Developments in Laboratory Astrophysics, In: Physics and Chemistry of Star Formation - The Dynamical ISM Across Time and Spatial Scales.
T. F. Giesen, A. A. Breier, M. Kaufmann, G. W. Fuchs.
Proceedings of the 7th Chile-Cologne-Bonn-Symposium. Eds.: Ossenkopf-Okada, V., Schaaf, R., Breloy, I., & Stutzki, J. 269 (2023).

Observation of the distribution of nuclear magnetization in a molecule

SG Wilkins, SM Udrescu, M Athanasakis-Kaklamanakis, RF Ruiz, M Au, I Belošević, R Berger, ML Bissell, AA Breier, AJ Brinson, K Chrysalidis, TE Cocolios, RP de Groote, A Dorne, KT Flanagan, S Franchoo, K Gaul, S Geldhof, TF Giesen, D Hanstorp, R Heinke, T Isaev, Á Koszorús, S Kujanpää, L Lalanne, G Neyens, M Nichols, HA Perrett, JR Reilly, LV Skripnikov, S Rothe, B Borne, Q Wang, J Wessolek, XF Yang, C Zülch

arXiv preprint arXiv:2311.04121 (2023)

Pinning down electron correlations in RaF via spectroscopy of excited states

Michail Athanasakis, SG Wilkins, LV Skripnikov, Agota Koszorus, AA Breier, Mia Au, Ivana Belosevic, R Berger, Mark Bissell, Anastasia Borschevsky, Alex Brinson, Katerina Chrysalidis, Thomas Cocolios, Ruben de Groote, Anais Dorne, Carlos Fajardo Zambrano, Robert W Field, Kieran T Flanagan, Serge Franchoo, Ronald Fernando Garcia Ruiz, Konstantin Gaul, Sarina Geldhof, Thomas F Giesen, Dag Hanstorp, Reinhard Heinke, Timur A Isaev, AA Kyuberis, Sonja Kujanpaa, Louis Lalanne, Gerda Neyens, Miranda Nichols, Lukas Pasteka, Holly A Perrett, Jordan R Reilly, Sebastian Rothe, Silviu-Marian Udrescu, Bram van den Borne, Quanjun Wang, Julius Wessolek, Xiaofei Yang, Carsten Zuelch

KU LEUVEN (2023)

Precision spectroscopy studies of radioactive molecules for fundamental physics

Silviu-Marian Udrescu, Shane Wilkins, Alex Breier, Ronald Fernando Garcia Ruiz, Michail Athanasakis-Kaklamanakis, Mia Au, Ivana Belosevic, Robert Berger, Mark Bissell, Katerina Chrysalidis, Thomas Cocolios, Ruben de Groote, Anais Dorne, Kieran Flanagan, Serge Franchoo, Konstantin Gaul, Sarina Geldhof, Thomas Giesen, Dag Hanstorp, Reinhard Heinke, Agota Koszorus, Sonja Kujanpaa, Louis Lalanne, Gerda Neyens

APS Division of Atomic (2023)

The torsion–rotation spectrum of deuterated hydrogen peroxide HOOD.
Herberth, D., Yamada, K. M. T., Giesen, T. F.
Journal of Molecular Spectroscopy 389, 111700 (2022)

Accurate ab initio calculations of RaF electronic structure appeal to more laser-spectroscopical measurements.
A. Zaitsevskii, L. V. Skripnikov, N. S. Mosyagin, T. Isaev, R. Berger, A. A. Breier and T. F. Giesen
Journal of Chemical Physics 156, 044306 (2022)

Concept and application of a linearized ring multipass optics configuration.
B. Waßmuth, G. W. Fuchs, H. Zimmermann, and T. F. Giesen
Applied Optics, Vol. 60, Issue 32, pp. 10273-10281 (2021)

Isotope Shifts of Radium Monofluoride Molecules.
S.M. Udrescu, A.J. Brinson, R.F. Garcia Ruiz, K. Gaul, R. Berger, J. Billowes, C.L. Binnersley, M.L. Bissell, A.A. Breier, K. Chrysalidis, T.E. Cocolios, B.S. Cooper, K.T. Flanagan, T.F. Giesen, R.P. de Groote, S. Franchoo, F.P. Gustafsson, T.A. Isaev, Á. Koszorús, G. Neyens, H.A. Perrett, C.M. Ricketts, S. Rothe, A.R. Vernon, K.D.A. Wendt, F. Wienholtz, S.G. Wilkins, and X.F. Yang
Phys. Rev. Lett. 127, 033001(2021)

The rotationally resolved infrared spectrum of TiO and its isotopologues.
Witsch, D., Breier, A. A., Döring, E., Yamada, K. M., Giesen, T. F., & Fuchs, G. W.
Journal of Molecular Spectroscopy, 377, 111439 (2021)

Deciphering the rotational spectrum of the first excited torsional state of propylene oxide.
P. Stahl, B. E. Arenas, O. Zingsheim, M. Schnell, L. Margulès, R. A. Motiyenko, G. W. Fuchs, T. F. Giesen
Journal of Molecular Spectroscopy, Volume 378, 111445 (2021)

The Millimeter-Wave Spectrum of Doubly Deuterated Propylene Oxide CH₃CHCD₂O.
P. Stahl, D. Kargin, R. Pietschnig, T. F. Giesen, G. W. Fuchs 
Journal of Molecular Spectroscopy, Volume 380, 111498 (2021)

Ab initio study and assignment of electronic states in molecular RaCl.
T.A. Isaev, A.V. Zaitsevskii, A. Oleynichenko, E. Eliav, A.A. Breier, T.F. Giesen, R.F. Garcia Ruiz, R. Berger.
Journal of Quantitative Spectroscopy & Radiative Transfer, 269:107649 (2021)

Late-Type Stars seen ah High Spectral Resolution at Mid-Infrared Wavelenghts

Guido W Fuchs, Daniel Witsch, Eileen Döring, Thomas F Giesen, John H Lacy, Rohini S Giles, Thomas K Greathouse

Springer International Publishing (2021)

Precision spectroscopy of RaF molecules for fundamental physics

Silviu-Marian Udrescu, Ronald Garcia Ruiz, Alex Brinson, Konstantin Gaul, Robert Berger, Jon Billowes, Cory Binnersley, Mark Bissell, Alex Breier, Katerina Chrysalidis, Thomas Cocolios, Ben Cooper, Kieran Flanagan, Thomas Giesen, Ruber de Groote, Serge Franchoo, Fredrik Gustafsson, Timur Isaev, Agota Koszorus, Gerda Neyens, Holly Perrett, Christopher Ricketts, Sebastian Rothe, Adam Vernon, Klaus Wendt, Frank Wienholtz, Shane Wilkins, Xiaofei Yang

APS Division of Nuclear Physics Meeting Abstracts (2021)

Laboratory blueprints for interstellar searches of aromatic chiral molecules: rotational signatures of styrene oxide
Pascal Stahl, Benjamin E. Arenas, Sérgio R. Domingos, Guido Fuchs, Melanie Schnell and Thomas Giesen   
Phys. Chem. Chem. Phys. 22(37), 21474-21487 (2020)

Rotational spectroscopy of rare iron monoxide isotopologues: A mass-independent analysis
Björn Waßmuth, Alexander A. Breier, Mattia Melosso, Guido W. Fuchs & Thomas F. Giesen
Molecular Physics, 118:19-20 (2020)

Simulating the circumstellar H₂CO and CH₃OH chemistry of young stellar objects using a spherical physical-chemical model
G. W. Fuchs, D. Witsch, D. Herberth, M. Kempkes, B. Stanclik, J. Chantzos, H. Linnartz, K. M. Menten and T. F. Giesen
Astronomy & Astrophysics 639, A143 (2020)

Improved bond length determination technique for C₃ and other
linear molecules with a large amplitude bending vibration
Alexander A. Breier, Thomas F. Giesen, Stephen C. Ross, Koichi M.T. Yamada
Journal of Molecular Structure 1219 (2020) 128329

Determination of accurate rest frequencies and hyperfine structure parameters of cyanobutadiyne, HC₅N
Thomas F.Giesen, Michael E. Harding, Jürgen Gauss, Jens-Uwe Grabow, Holger S.P. Müller
Journal of Molecular Spectroscopy 371 (2020) 111303

Spectroscopy of short-lived radioactive molecules
R. F. Garcia Ruiz, R. Berger, J. Billowes, C. L. Binnersley, M. L. Bissell, A. A. Breier, A. J. Brinson, K. Chrysalidis, T. E. Cocolios, B. S. Cooper, K. T. Flanagan, T. F. Giesen,  R. P. de Groote, S. Franchoo, F. P. Gustafsson, T. A. Isaev, Á. Koszorús, G. Neyens,  H. A. Perrett, C. M. Ricketts, S. Rothe, L. Schweikhard, A. R. Vernon, K. D. A. Wendt,  F. Wienholtz, S. G. Wilkins & X. F. Yang
Nature, Volume 581, 396–400 (2020)

First detection of the carbon chain molecules ¹³CCC and C¹³CC towards SgrB2 (M)
Thomas F. Giesen, Bhaswati Mookerjea, Guido W. Fuchs, Alexander A. Breier, Daniel Witsch, Robert Simon, and Jürgen Stutzki.
Astronomy & Astrophysics 633 (2020): A120.

Deep search for hydrogen peroxide toward pre-and protostellar objects -Testing the pathway of grain surface water formation.
Fuchs, G. W., D. Witsch, D. Herberth, M. Kempkes, B. Stanclik, J. Chantzos, H. Linnartz, K. Menten, and T. F. Giesen.
Astronomy & Astrophysics 636 (2020): A114.

Accidental Interactions in the Torsional Spectrum of Singly Deuterated Hydrogen Peroxide HOOD
Herberth D., Yamada K.M.T., Giesen T.F.
Journal of Molecular Spectroscopy 362, 37–44 (2019)

Infrared Spectroscopy of Disilicon-Carbide, Si2C: The nu(3) Fundamental Band
Witsch, D; Lutter, V; Breier, AA ; Yamada, KMT; Fuchs, GW; Gauss, J ; Giesen, TF.
JOURNAL OF PHYSICAL CHEMISTRY A, 123, 19, 4168-4177 (2019)

Mass-independent analysis of the stable isotopologues of gas-phase titanium monoxide - TiO
Breier, AA; Wassmuth, B; Fuchs, GW; Gauss, J; Giesen, TF.
JOURNAL OF MOLECULAR SPECTROSCOPY, 355, 46-58 (2019)
DOI: 10.1016/j.jms.2018.11.006

Principles of enantio-selective excitation in three-wave mixing spectroscopy of chiral molecules
Monika Leibscher, Thomas F. Giesen, Christiane P. Koch
Journal of Chemical Physics, 151, 014302 (2019)

Spectroscopy of short-lived radioactive molecules: A sensitive laboratory for new physics

RF Ruiz, R Berger, J Billowes, CL Binnersley, ML Bissell, AA Breier, AJ Brinson, K Chrysalidis, T Cocolios, B Cooper, KT Flanagan, TF Giesen, RP de Groote, S Franchoo, FP Gustafsson, TA Isaev, A Koszorus, G Neyens, HA Perrett, CM Ricketts, S Rothe, L Schweikhard, AR Vernon, KDA Wendt, F Wienholtz, SG Wilkins, XF Yang

arXiv preprint arXiv:1910.13416 (2019)

A mass-independent expanded Dunham analysis of aluminum monoxide and aluminum monosulfide
Alexander A. Breier, Björn Waßmuth, Thomas Büchling, Guido W. Fuchs, Jürgen Gauss, Thomas F. Giesen
Journal of Molecular Spectroscopy, 350: 43-50 (2018)

Astronomical detection of radioactive molecule 26AlF in the remnant of an ancient explosion
Tomasz Kamiński, Romuald Tylenda, Karl M. Menten, Amanda Karakas, Jan Martin Winters, Alexander A. Breier, Ka Tat Wong, Thomas F. Giesen, and Nimesh A. Patel.
Nature Astronomy 2, no. 10 (2018): 778-783.

Mass-independent analysis of the stable isotopologues of gas-phase titanium monoxide – TiO
Alexander A. Breier, Björn Waßmuth, Guido W. Fuchs, Jürgen Gauss, Thomas F. Giesen
Journal of Molecular Spectroscopy, 2018, in Press, accepted Manuscript

Rotational Spectroscopy of the NH3-H2 Molecular Complex
L. A. Surin, I. V. Tarabukin, S. Schlemmer, A. A. Breier, T. F. Giesen, M. C. McCarthy, A. van der Avoird
The Astrophysical Journal, 838:27, 7pp (2017)

Tert-butyl-dibromophosphane tBuPBr₂ - A new Chemical Synthesis and First Spectroscopic Characterization
P. Kutzer, S. Hartung, O. Pirali, R. Pietschnig, C. Medcraft, K.M.T. Yamada, T.F. Giesen
Heteroatom. Chem. 00:e21361 (2017)

Lowest bending mode of 13C-substituted C3 and an experimentally derived structure
A.A. Breier, T. Büchling, R. Schnierer, V. Lutter, G.W. Fuchs, K.M.T. Yamada, B. Mookerjea, J. Stutzki, T.F. Giesen
J. Chem. Phys. 145, 23 (2016)

Tert-butyl-dibromophosphane tBuPBr₂ - A new Chemical Synthesis and First Spectroscopic Characterization
P. Kutzer, S. Hartung, O. Pirali, R. Pietschnig, C. Medcraft, K.M.T. Yamada, T.F. Giesen
Heteroatom. Chem. 00:e21361 (2017)

Far-infrared spectra of Dimethyl-Ether and its ¹³C enriched isotopomers: the fundamental band of the C-O-C in plane bending mode, ν₇
P. Kutzer, D. Weissmann, B. Waßmuth, O. Pirali, P. Roy, K.M.T. Yamada, T.F. Giesen
J. Mol. Spectrosc. 329, 28-34 (2016)

Gas-Phase Spectroscopic Detection and Structural Elucidation of Carbon-Rich Group 14 Binary Clusters: Linear GeC₃Ge
S. Thorwirth, V. Lutter, A.J. Javed, T.F. Giesen
J. Chem. Phys. A 120, 254-259 (2016)

Time resolved imaging of laser induced ablation spectroscopy (LIAS) in TEXTOR and caomparison with modeling
N. Gierse, M.Z. Tokar, S. Brezinsek, T.F. Giesen, M. Hubeny, A. Huber, V. Philipps, A. Pospieszczyk, G. Sergienko, J. Wegner, Q. Xiao, U. Samm, C. Linsmeier and the TEXTOR team
Phys. Scr. T167, 014034 (2016)

Laboratory Astrochemistry: From Molecules through Nanoparticles to Grains
Eds.: S. Schlemmer, T. Giesen, H. Mutschke, C. Jäger
Wiley-VCH, ISBN: 978-3-527-40889-4 (2015)

In situ deuterium inventory measurements of a-C:D layers on tungsten in TEXTOR by laser induced ablation spectroscopy
N. Gierse, S. Brezinsek, J. W. Coenen, T. F. Giesen, A. Huber, M. Laengner, S. Möller, M. Nonhoff, V. Philipps, A. Pospieszczyk, B. Schweer, G. Sergienko, Q. Xiao, M. Zlobinski, U. Samm and the TEXTOR Team
Phys. Scr. T159, 014054 (2014)

Detection of a dense clump in a filament interacting with W51e2
B. Mookerjea, C. Vastel, G.E. Hassel, M. Gerin, J. Pety, P.F. Goldsmith, J.H. Black, T.F. Giesen, T. Harrison, C.M. Persson and J. Stutzki
Astronomy and Astrophysics, 566, Art. No. A61 (2014)

Molecular Spectroscopy

Thomas Giesen, Corey A Rice, John P Maier, Yvain Carpentier, Gaël Rouillé, Mathias Steglich, Cornelia Jäger, Thomas Henning, Friedrich Huisken, Jos Oomens, Olivier Pirali, Alexander GGM Tielens, Holger SP Müller

Wiley‐VCH Verlag GmbH & Co. KGaA (2014)

High-Resolution Spectroscopy of C3 around 3 μm
J. Krieg, V. Lutter, C. P. Endres, I. H. Keppeler, P. Jensen, M. E. Harding, J. Vázquez, S. Schlemmer, T. F. Giesen, and S. Thorwirth
J. Phys. Chem. A 117, 3332–3339 (2013)

Far infrared Fourier-transform spectroscopy of mono-deuterated hydrogen peroxide HOOD
D. Herberth, O. Baum, O. Pirali, P. Roy, S. Thorwirth, K. M. T. Yamada, S. Schlemmer, and T. F. Giesen
J. Quant. Spectrosc. Radiat. Transfer 113, 1127–1133 (2012)

Chemistry of C3 and carbon chain molecules in DR21(OH)*
B. Mookerjea, G. E. Hassel, M. Gerin, T. Giesen, J. Stutzki, E. Herbst, J. H. Black, P. F. Goldsmith, K. M. Menten, J. Krełowski, M. De Luca, T. Csengeri, C. Joblin, M. Kazmierczak, M. Schmidt, J. R. Goicoechea, and J. Cernicharo
Astronomy & Astrophysics, 546, A75 (2012)