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Erlangen 2022 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 15: Poster 2

MO 15.16: Poster

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

Channel-Resolved Laser-Driven Electron Rescattering in the Molecular-Frame — •Federico Branchi1, Felix Schell1, Tilmann Ehrlich1, Mark Mero1, Horst Rottke1, Serguei Patchkovskii1, Varun Makhija2, Marc J.J. Vrakking1, and Jochen Mikosch11Max-Born-Institut, Berlin, Germany — 2University of Mary Washington, Fredericksburg, USA

A series of reaction microscope experiments on strong-field ionization and laser-driven electron rescattering of the asymmetric top molecule 1,3-butadiene is presented. Importantly, by virtue of the ion-electron coincidence detection, these experiments separate the ground-state (D0) and first excited state (D1) ionization channel. By analyzing coherent rotational wavepacket evolution we extract the polar and azimuthal angle-resolved molecular frame ionization and rescattering probability. By extracting the differential scattering cross section (DCS) for near- to mid-infrared wavelengths we explore the role of different continuum wavepackets for molecular structure determination. By measuring the ellipticity dependence of the return-energy dependent rescattering probability we explore the role of short versus long trajectories. A multi-faceted picture of molecular effects in strong-field ionization and laser-induced electron diffraction ensues.

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