Hannover 2016 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 21: Interaction with strong or short laser pulses
A 21.6: Poster
Dienstag, 1. März 2016, 16:30–19:00, Empore Lichthof
Molecular wave-packet dynamics on laser induced transition states — •Andreas Fischer1, Martin Gärttner1, Philipp Cörlin1, Alexander Sperl1, Michael Schönwald1, Tomoya Mizuno1, Giuseppe Sansone2, Arne Senftleben3, Joachim Ullrich4, Bernold Feuerstein1, Thomas Pfeifer1, and Robert Moshammer1 — 1Max-Planck-Institut für Kernphysik, Heidelberg — 2Dipartimento di Fisica, Politecnico Milano, Milano — 3Institut für Physik, Universität Kassel, Kassel — 4Physikalisch-Technische Bundesanstalt, Braunschweig
Using a XUV-pump IR-probe experiment in combination with a Reaction Microscope, we studied the dissociation dynamics of hydrogen molecules by varying the time delay between an ultra-short extreme-ultraviolet (XUV) and a near-infrared (IR) control pulse. The measured fragment momenta are time-delay dependent, showing that the reaction kinematics can be controlled by varying the retardation of the control pulse. A semi-classical model, supported by a quantum dynamics simulation, provides an intuitive understanding of the underlying mechanism in terms of particle motion on laser-induced potential energy curves.