München 2004 – scientific programme

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MO: Molekülphysik

MO 12: Poster I

MO 12.2: Poster

Tuesday, March 23, 2004, 14:00–16:00, Schellingstr. 3

Influence of linear chirped excitation pulses on the wavepaket motion in the dye oxazine 1 — •Regina Dürr, Constanze Sobotta, Stephan Malkmus, and Markus Braun — Ludwig-Maximilians-Universität München, Lehrstuhl für BioMolekulare Optik, Oettingenstraße 67, 80538 München

Coherent excitation of molecular vibrations in a molecule with an ultrashort optical pulse leads to wavepaket motion. This motion can be recorded by pump-probe spectroscopy providing that the crosscorrelation width of pump and probe pulse is shorter than the period of the molecular vibration mode.

We present measurements on the dye oxazine 1 for different values of the linear chirp of the excitation pulse. Effects on the wavepaket motion due to negative and positive chirps are compared.