13–20 Sept 2013
Magnus-Haus of the German Physical Society
Europe/Berlin timezone

New insights into ultrafast molecular dynamics with femtosecond pulses of a higher harmonic source

Not scheduled
20m
Magnus-Haus of the German Physical Society

Magnus-Haus of the German Physical Society

Am Kupfergraben 7 10117 Berlin

Speaker

Mr Henning Schröder (Helmholtz-Zentrum Berlin)

Description

The current status of project P2 “Ultrafast charge transfer and isomerization dynamics of molecules” will be presented. The goal is to resolve the early-stage dynamics of energy relaxation concomitant with structural rearrangements in Fe(CO)5 in the gas phase. Photoexcitation generates a metal-to-ligand charge transfer in Fe(CO)5 that launches a sequence of processes on time scales of 20-30 fs before the molecule dissociates after approximately 150 fs. The aim is to resolve these early steps with pump-probe valence-band photoelectron spectroscopy with femtosecond VUV pulses from high-order harmonic generation. The table-top source for this and an outline of the principles of higher harmonic generation and of the Fe(CO)5 experiments will be presented.

Primary author

Mr Henning Schröder (Helmholtz-Zentrum Berlin)

Co-authors

Alexander Föhlisch (Helmholtz-Zentrum berlin für Materialien und Energie) Mr Hardy Drube (Helmholtz-Zentrum Berlin) Nomi Sorgenfrei (Universität Hamburg, Department of Physics and Centerfor Free-Electron Laser Science) Phillipe Wernet (Helmholtz-berlin Berlin für Materialien und Energie) Rolf Mitzner (Helmholtz-Zentrum Berlin für Materialien und Energie)

Presentation materials