Rostock 2019 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MO: Fachverband Molekülphysik
MO 22: Posters 3: Cluster, Strong Field Physics, and Experimental Techniques
MO 22.16: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Foyer LLM
Semiclassical description of high order harmonic generation in H2+ — •Fermín Rodríguez-Hernández1, Frank Grossmann2, and Jan-Michael Rost1 — 1Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, D-01187 Dresden, Germany — 2Institut für Theoretische Physik, Technische Universität Dresden, D-01062, Germany
High order harmonic generation (HHG) is a key process in intense laser field-matter interaction which has enabled the generation of coherent XUV radiation and attosecond pulses. In this work we investigate HHG for a one-dimensional H2+ molecular model using a semiclassical description based on the Herman-Kluk propagator. We do this in the setting of laser assisted electron ion scattering [1], which avoids initial tunneling. We found the semiclassical approach is able to reproduce the major features of the HHG spectrum when (secondary) tunneling is not important. For certain nuclear separations and specific field intensities, structures appear in the HHG spectrum in addition to the ones familiar from atomic HHG. The semiclassical approach and in particular the trajectories facilitate the understanding of those phenomena.
[1] C. Zagoya, C.-H. Goletz, F. Grossmann, and Jan M. Rost, New J. Phys. 14, 093050 (2012).