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Heidelberg 1999 – scientific programme

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MO: Molekülphysik

MO 10: Poster IV: fs - Spektroskopie

MO 10.7: Poster

Tuesday, March 16, 1999, 16:00–19:00, PA

Femtosecond experiments on Rydberg state dynamics in polyatomic molecules — •Maurice H.M. Janssen, Wim Roeterdink, Anouk Rijs, Gregory Bazalgette, and Steven Stolte — Laser Centre and Chemistry Department, Vrije Universiteit, Amsterdam, The Netherlands

We are studying the ultrafast photoinduced (pre)dissociation dynamics of Rydberg-states in small polyatomic molecules like methyl iodide, methyl bromide and tri-fluor methyl iodide. Pump-probe femtosecond experiments in a cold pulsed molecular beam at 1 kHz repetition rate with time-of-flight mass selected ion detection are reported. Several different pump and probe wavelengths are used to investigate the vibronic dependence of the (pre)dissociation dynamics. These experiments explore the multi-dimensional Rydberg-state surfaces and provide insight on the evolution of the excited wavepacket into the dissociation continuum.

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