Erlangen 2022 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 15: Poster 2

MO 15.2: Poster

Mittwoch, 16. März 2022, 16:30–18:30, P

Improved mass spectrometer for two-dimensional electronic spectroscopy in the gas phase — •Arne Morlok, Ulrich Bangert, Lukas Bruder, Yilin Li, Daniel Uhl, and Frank Stienkemeier — Institute of Physics, University of Freiburg, Germany

Two-dimensional electronic spectroscopy (2DES) is a very powerful method to study the ultrafast dynamics of matter. In our group, we apply the technique to molecules and cluster beams in the gas phase and combine it with photoion mass-detection [1,2]. To increase the flexibility of the mass spectrometer, we implement a pulsed electron gun for electron impact ionization. This enables beam depletion measurements and cluster beam characterization while avoiding the issue of overcoming the high ionization potentials of most molecules. We will present first characterization results.

[1] L. Bruder et al., Nat Commun 9, 4823 (2018).

[2] L. Bruder, U. Bangert, M. Binz, D. Uhl, and F. Stienkemeier, J. Phys. B: At. Mol. Opt. Phys. 52, 183501 (2019)