TU BRAUNSCHWEIG

Teaching

2019

2019-06-17−21 74th International Symposium on Molecular Spectroscopy, Champaign-Urbana, Illinois/USA:
1) »Isolated small-amplitude fundamental embedded in a pure torsional bath: FIR and microwave spectra of the v10 vibrational state and hot torsional bands of acetaldehyde«, presented by Vadim Ilyushin
2) »Vibration-torsion-rotation interactions in molecules with a C3v top and Cs frame: vt=3,4 torsional and C–S stretching vibrational states of methyl mercaptan CH332SH«,
presented by Vadim Ilyushin
2019-01-06 New article in Journal of Quantitative Spectroscopy and Radiative Transfer:
»Extended analysis of the FTIR high-resolution spectrum of of HD32S and HD34S in the region of the v2 band: Positions and strengths of individual lines« (doi: 10.1016/j.jqsrt.2018.12.040)

2018

2018-12-18 ...and here comes the English translation:
Secondary Electron and Negative-Ion Emission from Metal Surface under the Bombardment by Positive Ions (H+, Cl+, HCl+) (download) (doi: 10.3103/S1068335618100044)
2018-11-10 For those who are able to read and understand Russian - new article in Краткие сообщениния по физике ФИАЛ (English translation will follow):
»Соударения положительных ионов (H+, Cl+, HCl+) с металлической поверхностью: эмиссия вторичных электронов и отрицательных ионов«
2018-11-06 New article in Journal of Quantitative Spectroscopy and Radiative Transfer:
»Extended analysis of the FTIR high-resolution spectrum of D232S in the region of the v2 band« (doi: 10.1016/j.jqsrt.2018.12.007)
2018-09-07 phyphox in der Hochschullehre, Aachen: »VIS-Spektroskopie mit einfachen
Mitteln – ein Proof of Concept«, poster contribution by Hendrik Marx and Christof Maul
2018-09-03–07 25th International Conference on High Resolution Molecular Spectroscopy, Bilbao, Spain:
1) »Isolated small-amplitude fundamental embedded in a pure torsional bath: assignment and fit of the FIR and microwave spectra of the v10 vibrational state of acetaldehyde«, presented by Vadim Ilyushin,
2) »High resolution study of Hexades of H2MS«, presented by Oleg Ulenikov.
2018-07-24–28

International Conference on Combustion Physics and Chemistry, Samara, Russia:
1) »Double-arm three-dimensional ion imaging apparatus for the study of ion pair channels in resonance enhanced multiphoton ionization «, presented by Alexey Chichinin,
2) »Photodissociation dynamics of SCl2: resonance enhanced multi-photon ionization/time-of-flight mass spectroscopy study «, presented by Alexey Chichinin

2018-06-18–22 73rd International Symposium on Molecular Spectroscopy, Champaign-Urbana, Illinois/USA:
»A new multi-state vibration-torsion-rotation fitting program for molecules with a C3v top and Cs frame: application to the v10 band of acetaldehyde«, presented by Vadim Ilyushin.
2018-05-15 New article in Journal of Quantitative Spectroscopy and Radiative Transfer:
»Extended analysis of the high resolution FTIR spectra of H2MS (M=32,33,34,36) in the region of the bending fundamental band: The v2 and 2v2 - v2 bands: Line positions, strengths, and pressure broadening widths« (doi: 10.1016/j.jqsrt.2018.05.009)
2018-05-11 Bunsentagung 2018, Hannover, Germany:
»High-resolution FTIR spectroscopy of extraterrestrially relevant molecules in the 400 - 800 cm-1 band region: ν2 band of 32S16O2«, presented by Sigurd Bauerecker.

2017

2017-09-29 2nd German-Japanese Research Symposium, Braunschweig: »Laser-based and infrared spectroscopy in environmental, atmospheric, and astrophysical contexts«
2017-09-12 IBER 2017: Contribeuted talk about  »Multiphoton Fragmentation of Deuterium Chloride (DCl) - A 3D Imaging Study«
2017-07-07 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »First high resolution analysis of the 3v2 and 3v2 - v2 bands of 32S16O2« (doi: 10.1016/j.jqsrt.2017.07.012)
2017-06-20 72nd International Symposium on Molecular Spectroscopy, Champaign-Urbana, Illinois/USA: »Microwave and FIR spectroscopy of dimethylsulfide in the ground, first, and second excited torsional states«, presented by Vadim Ilyushin.
2017-06-07 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »High-resolution spectroscopy and global analysis of CF4 rovibrational bands to model its atmospheric
absorption
« (doi: 10.1016/j.jqsrt.2017.06.039)
2017-04-01 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »Study of highly excited ro-vibrational states of S18O2 from “hot” transitions: The bands ν123−ν2, 2ν12−ν2, and 2ν23−ν2«  (doi: 10.1016/j.jqsrt.2017.04.004)
2017-03-01 Moved into a new old building. New location is Gaußstr. 17, 38106 Braunschweig, room 004. Telephone has remained unchanged: +49 531 391 7382. 
2017-01-01 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »Ethylene-1-13C (13C12CH4): First analysis of the ν2, ν3 and 2ν10 bands and re–analysis of the ν12 band and of the ground vibrational state«  (doi: 10.1016/j.jqsrt.2016.10.009)

2016

2016-10-05 Tim has handed in his B.Sc. thesis. Congratulations!
2016-09-28 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »First study of the rovibrational structur of the g-symmetry vibrational states of C2D4 from the analysis of hot bands: The ν7+v10–v10 and ν10+v12–v10 bands«  (doi: 10.1016/j.jqsrt.2016.09.014)
2016-08-21 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »First high resolution analysis of the 2ν1, 2ν3, and ν13 bands of S18O2«  (doi: 10.1016/j.jqsrt.2016.08.008)
2016-08-01 Tim Blinzer takes up his B.Sc. thesis work on »Calibration of particle size measurements in aerosol phase using FTIR spectroscopy«
2016-07-29 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »First high resolution study of the interacting ν8+v10, ν6+v10, ν6+v7 bands and re-analysis of the ν7+v8 band of trans-d2-ethylene« (doi: 10.1016/j.jqsrt.2016.06.040)
2016-04-25 Patrick has handed in his B.Sc. thesis. Congratulations!
2016-04-16 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »Study of resonance interactions in polyatomic molecules on the basis of highly accurate experimental data: Set of strongly interacting bands ν10(B1), ν7(B2), ν4(A2), ν8(B2), ν3(A1) and ν6(B1) of CH2=CD2« (doi: 10.1016/j.jqsrt.2016.04.001)
2016-04-08 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »First high resolution analysis of the  ν12 and ν2+ν3 bands of S18O2«, Oleg N. Ulenikov, Elena S. Bekhtereva, Olga V. Gromova, V.A. Zamotaeva, S.I. Kuznetsov, Christian Sydow, Christof Maul, and Sigurd Bauerecker (doi: 10.1016/j.jqsrt.2016.03.038)
2016-02-24 Patrick Basan takes up his B.Sc. thesis work on »Setup of a laboratory experiment for the Raman spectroscopy of gases«
2016-02-18 New article in Review of Scientific Instruments: »Double-arm three-dimensional ion imaging apparatus for the study of ion pair channels in resonance enhanced multiphoton ionization«, Mikhail Poretskiy, Alexey I. Chichinin, Christof Maul, and Karl-Heinz Gericke (doi: 10.1063/1.4936984)
2016-02-10 Volkswagen Foundation funds trilateral German-Russian-Ukrainian research project »Sulfur in astrochemistry and astrobiology: Laboratory and theoretical studies« with a total of € 250.000.

2015

2015-11-17 New article in Journal of Molecular Spectroscopy: »Ro-vibrational analysis of hot bands in 13C2H4: The bands ν71010 and ν101210«, Oleg N. Ulenikov, Olga V. Gromova, Elena S. Bekhtereva, Nadezhda V. Kashirina, Galina Onopenko, Christof Maul, and Sigurd Bauerecker (doi: 10.1016/j.jms.2015.08.010)
2015-11-06 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »Re-analysis of the high resolution FTIR spectrum of C2H2D2-cis in the region of 1280 – 1400 cm-1«, Oleg N. Ulenikov, Olga V. Gromova, Elena S. Bekhtereva, I.A. Konov, Yu.V. Chertavskikh, Christof Maul, and Sigurd Bauerecker (doi: 10.1016/j.jqsrt.2015.10.011)
2015-07-15 Patrick Kurle handed in his B.Sc. thesis »Diode Laser Absorption Spectroscopy of Rubidium Atoms«
2015-06-30 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »Precise ro-vibrational analysis of molecular bands forbidden in absorption: The ν810  band of 13C2H4«, Oleg N. Ulenikov, Olga V. Gromova, Elena S. Bekhtereva, Nadezhda V. Kashirina, Christof Maul, and Sigurd Bauerecker (doi: 10.1016/j.jqsrt.2015.06.006)
2015-04-25 New article in Journal of Quantitative Spectroscopy and Radiative Transfer: »Study of the high resolution FTIR spectrum of CH2=CD2 in the region of 1300–1450 cm-1: The v12(A1) and 2v10(A1) bands«, O. Ulenikov, O. Gromova, E. Bekhtereva, K.B. Berezkin, E.A. Sklyarova, C. Maul, K.-H. Gericke, and S. Bauerecker /doi: 10.1016/j.jqsrt.2015.04.008)
2015-04-15 Patrick Kurle took up his B.Sc. thesis work on »Diode Laser Absorption Spectroscopy of Rubidium Atoms«
2015-04-01–30 G-RISC grants funding of a scientific visit of Vera Baturo from the Pravilov group at St. Petersburg State University for studying »3D imaging of photoionization/fragmentation of highly excited states of diatomic molecules«.
2015-01-20 We are currently looking for a B.Sc. or M.Sc. candidate for an interdisciplinary project dealing with the spectroscopy of freezing water ice particles and their role in planet formation processes (in collaboration with the Blum group and the Bauerecker group)

2014

2014-12-20 G-RISC grants funding of a scientific visit of Vera Baturo from the Pravilov group at St. Petersburg State University for studying »3D imaging of photoionization/fragmentation of highly excited states of diatomic molecules«.
2014-12-19 New article submitted to Journal of Chemical Physics: »3D Velocity Map Imaging study of the 193 nm photodissociation of borazine«, by M. Poretskiy, N. Teschmit, J. Grunenberg, C. Maul, and K.-H. Gericke
2014-12-19 New article submitted to Review of Scientific Instruments: »Double-arm 3D Ion Imaging apparatus with the function of produced ions loss characterization«, by M. Poretskiy, A.I. Chichinin, C. Maul, and K.-H. Gericke
2014-10-13 New article has appeared in Journal of Quantitative Spectroscopy and Radiative Transfer: »High resolution ro-vibrational analysis of interacting bands ν4, ν7, ν10, and ν12 of 13C2H4«, O. Ulenikov, O. Gromova, E. Bekhtereva, C. Maul, S. Bauerecker, C. Sydow, M.G. Gabona, and T.L. Tan
2014-10-08 The Chemical Industry Fund (Fonds der Chemischen Industrie - FCI) supports the university chemistry education in physical chemistry with a 93000 € grant for advanced educational laboratory equipment.
2014-08-17–22

Three contributions at the Stereodynamics 2014 conference in St. Petersburg, Russia, with M. Poretskiy, A.I. Chichinin, and K.-H. Gericke:
• Probabilities for 2- and 3-photon absorption, ion pair channel (H+ + Cl-) in REMPI of HCl, and emission from metal surface of e-, H-, and HCl- ions under the bombardment by H+, Cl+, and HCl+ ions,
• Two- and three-photon absorption cross section measurement in case of HCl photoionization and photodissociation by means of 3D-imaging method,
• Surface scattering of H- and HCl- ions, resulting from the recharge of H+ and HCl+ (Best Poster Award)

2014-08-05 New article has appeared in Physical Chemistry Chemical Physics: »Simultaneous imaging of both product ions: Exploring gateway states for HCl as benchmark molecule«, by M. Poretskiy, A. I. Chichinin, C. Maul and K.-H. Gericke
2014-03-30 New article has appeared in Journal of Quantitative Spectroscopy and Radiative Transfer: »High Resolution Analysis of the (111) Vibrational State of SO2«, O. Ulenikov, O. Gromova, E. Bekhtereva, A. Belova, S. Bauerecker, C. Maul, C. Sydow, V.-M. Horneman
2014-03-17–21 Christof Maul attends the DPG meeting in Berlin:
»Simultaneous imaging of both product ions: Exploring gateway states for HCl as benchmark molecule
2014-03-06–13 The Oulu long path cell travels to Braunschweig.
2014-01-01 Nicole Teschmit moves on to Jochen Küppers' labs at DESY CFEL (Center for Free Electron Laser Science), Hamburg, for a Ph.D. project.

2013

2013-12-24 New article submitted to Journal of Quantitative Spectroscopy and Radiative Transfer: »High Resolution Analysis of the (111) Vibrational State of SO2«, O. Ulenikov, O. Gromova, E. Bekhtereva, A. Belova, S. Bauerecker, C. Maul, C. Sydow, V.-M. Horneman
2013-11-01 Thomas Forsting will move on to Martin Suhm's lab at Göttingen for a Ph.D. project. 
2013-10-25 Nicole Teschmit has handed in her M.Sc. thesis about »Optically and collisionally induced electronic transitions in iodine molecules in excited states«
2013-10-11 New article has appeared in the HITRAN 2012 Special Issue of the Journal of Quantitative Spectroscopy and Radiation Transfer: »Broadening and shifting coefficients of rotation–vibrational lines in the fundamental and first overtone bands of HCl and HBr induced by oxygen and air«
2013-08-15 Nicole Teschmit has returned back to Braunschweig from a 3 months scientific visit to Anatolyi Pravilov's lab in St. Petersburg, Russia
2013-06-19 Matthias Piescheck has handed in his B.Sc. thesis about »High resolution cavity ringdown spectroscopy of molecular chlorine«
2013-06-10–13 Thomas Forsting has attended the International Meeting on Cavity Enhanced Spectroscopy in Naples, Italy, and presented a poster about »Quantum state selective detection of molecular chlorine by high-resolution cavity ring-down spectroscopy«
2013-06-05 Christian Sydow has handed in his diploma thesis about »High resolution Fourier transform infrared spectra of weak overtone and combination bands of tetrafluoro methane«
2013-05-10 Ignacio Vespoli has returned to Neuquén, Argentina, after doing a remarkably good job in the lab investigating the Cl2 spectra in the visible. Thanks for your work, and good luck for your future!
2013-04-01–
–2013-08-31
G-RISC funds scientific visit of Nicole Teschmit St. Petersburg State University for studying »non-adiabatic transitions in halogen molecules in excited states populated optically and collisionally« with Anatoliy Pravilov.
2013-03-18–22 Michael Schiller, Misha Poretskiy, and Ignacio Vespoli attend the DPG meeting in Hannover:
»Negative ion imaging resulting from HCl photodissociation«
»Photoion pair production in HCl«
»Cavity ring-down spectroscopy for state resolved monitoring of molecular chlorine in the visible wavelength range«
2013-03-01 New article submitted to J. Mol. Spectrosc.: »Broadening and shifting coefficients of rotation-vibrational lines in the fundamental and first overtone bands of HCl and HBr induced by oxygen and air«
R.E. Asfin, A.V. Domanskaya, and C. Maul

2012

2012-12-01 New article published: »Nitrogen-induced broadening and shift coefficients of rotation–vibrational lines in the fundamental and first overtone bands of HCl and HBr«
R.E. Asfin, A.V. Domanskaya, C. Maul, and M.O. Bulanin
J. Mol. Spectrosc. 282 (2012), 9 - 13 (doi: 10.1016/j.jms.2012.10.009)
2012-12-01 The Braunschweig measurements of line shifts and broadenings for HI enter HITRAN database.
2012-11-15–16 Thomas Forsting, Ignacio Vespoli, and Christof Maul attend the EUMETRISPEC workshop, Wolfenbüttel/Braunschweig: »Quantum state selective detection of molecular chlorine by high-resolution cavity ring-down spectroscopy« (poster contribution)
2012-11-15 Thomas Forsting has handed in his diploma thesis about »High resolution cavity ringdown absorption spectroscopy of atmospheric trace gases«
2012-10-08–10 Thomas Forsting presents poster at Photochemie 2012, Potsdam: »Teaching an old dog new tricks - Quantum state selective detection of molecular chlorine by high-resolution cavity ring-down spectroscopy«
2012-10-01–11-30 Jingming Long (University of Iceland, Reykjavik), visiting researcher in Braunschweig (ion pair dynamics)
2012-10-01–
–2013-03-31
Ignacio Vespoli (Universidad Nacional del Comahue, Neuquén, Argentina), internship in Braunschweig (cavity ringdown spectroscopy)
2012-08-01–09-30 Michael Schiller, visiting researcher in the Kvaran labs, University of Iceland, Reykjavik (ion pair dynamics)
2012-07-20–08-20 Ruslan Asfin (State University St. Petersburg, Russia), visiting researcher Braunschweig (high resolution FTIR spectroscopy)
2012-04-12 DFG funds collaboration with Agust Kvaran, University of Iceland, Reykjavik: "Rydberg resonance enhanced photofragmentation of small molecules into ion pairs"

Optical Spectroscopy

Research Interests

  • non-covalent interactions
  • reaction dynamics
  • high resolution spectroscopy

Techniques

  • resonance enhanced multi-photon ionisation (REMPI)
  • tome-of-flight mass spectrometry (TOF)
  • high resolution Fourier transform infrared spectroscopy (FTIR)
  • cavity ringdown spectroscopy (CRDS)
  • laser induced fluorescence (LIF)


  last changed 25.02.2019
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