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Dresden 2011 – scientific programme

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MO: Fachverband Molekülphysik

MO 24: Poster: Femtosecond spectroscopy

MO 24.18: Poster

Thursday, March 17, 2011, 16:00–18:00, P2

Ultrafast dynamics in excited molecules probed by photoelectron spectroscopy: dissociation of NO2 — •Martin Eckstein1, Georg Gademann2, Arjan Gysbertsen2, Freek Kelkensberg2, Jesse Klei2, Christian Neidel1, Wing-Kiu Siu2, Chung-Hsin Yang2, Hans-Jacob Wörner3, and Marc Vrakking1,21Max-Born-Institut, Berlin, Germany — 2Amolf, Amsterdam, Netherlands — 3Steacie Institute for Molecular Sciences, Ottawa, Canada

Femtosecond time-resolved photoionization experiments open up opportunities to look at chemical reactions in real time with element specificity. Here experiments on the simplest chemical process, dissociation, are reported. The dissociation of NO2 is studied by exciting molecules and recording transient photoelectron angular and energy distributions as the molecule falls apart. First experimental results are reported and compared to the recent study using high-harmonic generation as a probe of the dissociation process. Future extension of the experiments to larger molecules of biological importance and to shorter time-scales are discussed.

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