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MO: Fachverband Molekülphysik
MO 6: Femtosecond Spectroscopy I
MO 6.4: Vortrag
Montag, 12. März 2012, 17:15–17:30, V38.03
Pump-Probe simulations for single trapped molecular ions — •Markus Kowalewski1, Steffen Kahra2, Günther Leschhorn2, Tobias Schaetz2,3, and Regina de Vivie-Riedle1 — 1Department Chemie, Ludwigs-Maximilians Universität München — 2Max-Planck-Institut für Quantenoptik, Garching — 3Albert-Ludwigs-Universität, Freiburg
Ion traps offer a great possiblity to handle cold single molecular ions without environmental interactions. Ultrashort and intense laser pulses are a well established tool for studing and controlling the molecular dynamics. Both methods are combined in a new experiment with MgH+ ions. It is demonstrated, that a pump-probe experiment under this conditions is possible.
In this talk we present the theoretical model which faces the the problems arising in this novel parameter regime. In contrast to femtosecond experiments in the gas or condensed phase the same molecule is excited by the laser several times. Thus they are subject to internal heating, which has to be treated in the theory and handled in the experiment. Moreover an extented pump-probe pulse scheme is developed which keeps the ions cool.