SAMOP 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MO: Fachverband Molekülphysik
MO 9: Molecules in Intense Fields and Quantum Control (joint session MO/A)
MO 9.1: Hauptvortrag
Mittwoch, 8. März 2023, 14:30–15:00, F102
Full Angle-Resolved Mapping of Electron Rescattering Probabilities in the Molecular Frame — Federico Branchi1, Lingfeng Ge2, Felix Schell1, Killian Dickson3, Mark Mero1, Horst Rottke1, Serguei Patchkovskii1, Marc Vrakking1, Varun Makhija3, and •Jochen Mikosch2 — 1Max-Born-Institut, Berlin, Germany — 2Universität Kassel, Kassel, Germany — 3Univ. of Mary Washington, Fredericksburg, USA
A reaction microscope experiment 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, our experiments separate the ground-state (D0) and first excited state (D1) ionization channel. In this way two scattering experiments on the same target are performed simultaneously with two very different continuum electron wavepackets.
By analyzing lab frame coherent rotational wavepacket evolution following a non-adiabatic alignment laser pulse we achieve both polar and azimuthal angle-resolved molecular frame information.
Our results indicate that the nodal structure of the ionizing orbitals is more strongly reflected in the electron rescattering probability rather than in the ionization probability. Propagation of the wavepacket influences the differential cross section that is measured for the two channels. Experimental results are compared with results from a TD-RIS ab-initio simulation.