Erlangen 2022 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 11: Photochemistry I
MO 11.1: Vortrag
Mittwoch, 16. März 2022, 10:30–10:45, MO-H7
UV and Mid-IR Photo-induced Dissociation of Solvated (Bio)Molecular Complexes — •Mukhtar Singh1,2,3, Matthew Scott Robinson1,2,3, Hubertus Bromberger1,2, Jolijn Onvlee1,3, Sebastian Trippel1,2, and Jochen Küpper1,2,3 — 1Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg — 2Center for Ultrafast Imaging, Universität Hamburg — 3Department of Physics, Universität Hamburg
We present the ultrafast imaging of UV and thermal energy chemical dynamics of micro-solvated (bio)molecular complexes probed with strong field techniques [1]. We produced a pure sample of the molecule of interest in the gas phase by using a combination of a molecular beam and the electrostatic deflector [2]. To study the induced dynamics, we set up the both, an UV and a mid-IR pump-probe experiment, in which a 266 nm and 2.9 µm beam was used to excite the system. A 1.3 µm beam was used for ionising the system. First experiments focused on the ion imaging of the UV and mid-IR triggered system. Future experiments will use laser-induced electron diffraction (LIED) [3,4] to probe the induced dynamics in order to obtain structural information about the system with atomic resolution.
[1] J. Onvlee, et al., arXiv:2103.07171v1 12 Mar 2021.
[2] S. Trippel, et al., Rev. Sci. Instrum. 89, 096110 (2018).
[3] J. Wiese, et al., Phys. Rev. Research 3, 013089 (2021).
[4] E. T. Karamatskos, et al., J. Chem. Phys. 150, 244301(2019).