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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 Mikosch¹ — ¹Max-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.