Mainz 2026 – scientific programme
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MO: Fachverband Molekülphysik
MO 11: Poster – Chirality
MO 11.9: Poster
Tuesday, March 3, 2026, 17:00–19:00, Philo 1. OG
A molecular source for probing ultrafast dynamics in chiral systems — •Akhila Jose1, Juliette Leroux1,2, Niclas Wieland1, Sara Savio1, Gunnar Petersen1, Lasse Wülfing4, Moritz Zander1,3, Parth Patil1,3, Filippa Dudda1, Marius Thiem1, Leonie Ashenbrenner1, and Markus Ilchen1,3 — 1Department of Physics, Universität Hamburg, 22607 Hamburg, Germany — 2The Hamburg Centre for Ultrafast Imaging, 22761 Hamburg, Germany — 3Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany — 4Fakultät Physik, Technische Universität Dortmund, 44227 Dortmund, Germany
Chiral molecules are fundamental to life. They exhibit different interactions with other chiral systems, even though they share identical properties in achiral environment. Probing these differences requires measuring the photoelectrons and fragment ions produced after photo-dissociation. A double-sided velocity map imaging spectrometer enables simultaneous 4π detection of electrons and ions, providing correlated information on electron angular distributions and molecular fragmentation. To study intrinsic chiral behavior under realistic conditions, molecules must be examined in both isolated and liquid environments. This requires a molecular source that delivers high axial density for efficient ionization and high-quality imaging signals. Combining the newly developed molecular jet with a double-sided imaging spectrometer and tabletop laser or synchrotron radiation, we can resolve chiral effects, from photoelectron patterns to enantiomer-specific and phase-dependent behavior.
Keywords: Molecular jet; Supersonic expansion; Velocity-map imaging; Chirality