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Stuttgart 2012 – scientific programme

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MO: Fachverband Molekülphysik

MO 13: Poster 1: Cold Molecules, Femtosecond Spectroscopy, Molecular Dynamics

MO 13.26: Poster

Tuesday, March 13, 2012, 16:30–19:00, Poster.IV

Time-resolved photoelectron imaging of excited state dynamics in nitric oxide (NO) in the VUV rangePeter Trabs, Franziska Buchner, •Andrea Lübcke, Arnaud Rouzée, Hans-Hermann Ritze, Masood Ghotbi, and Marc Vrakking — Max-Born Institut Berlin

40 fs tuneable VUV pulses in the range of 147 nm - 150 nm are used to trigger electron dynamics in Rydberg states of NO. A second delayed pulse at 800 nm probes the excited state by photoionization. A velocity map imaging spectrometer is used to measure the angular and kinetic energy distribution of the ejected photoelectrons in dependence of the delay between pump and probe pulses. We observe three photoelectron lines and find different oscillations in the photoelectron yield, the kinetic energy and the angular distribution. These results are interpreted in terms of beating between different vibronic states.

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