Berlin 2005 – wissenschaftliches Programm
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Q: Quantenoptik und Photonik
Q 10: Ultrakalte Moleküe
Q 10.1: Vortrag
Samstag, 5. März 2005, 09:00–09:15, HU Kinosaal
Rb2 photoassitiation using shaped fs-laser pulses — •W. Salzmann1, U. Poschinger1, R. Wester1, M. Weidemüller1, A. Lindinger2, M. Plewicki2, F. Vetter2, A. Merli2, S. Weber2, and L. Wöste2 — 1Physikalisches Institut, Universität Freiburg, Herrmann-Herder-Str. 3, 79104 Freiburg i.Br. — 2Freie Universität Berlin, Fachbereich Physik, Arnimallee 14 , 14195 Berlin
We report on an experiment where we use a shaped fs-laser to photoassociate ultracold Rubidium atoms into the molecular electronic ground state. A second fs-laser is used to convert the molecules into Rb2+ ions which are identified via time-of-flight[1]. In order to optimize the pulse shape of the photoassociation laser a genetic algorithm is applied in the scheme of a coherent control experiment[2]. The experimental results are presented. This work is performed in a collaboration between the University of Freiburg and the Freie Universität Berlin.
[1]C. Gabbanini et. al., PRL 84, No.13, 2814 (2000)
[2]S. Vadja et. al., Chem. Phys., No.267, 231 (2001)
[3]C. Koch et. al., PRA 70, 013402 (2004)