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Dresden 2011 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 6: Poster: Cold Molecules

MO 6.7: Poster

Montag, 14. März 2011, 16:00–18:00, P1

Photodetachment and Reaction dynamics with cold trapped molecular ions — •Thorsten Best1,2, Jonathan Brox1, Stephanie Eisenbach1, Sébastien Jézouin1,3, Rico Otto1, Sebastian Trippel1,4, Alexander von Zastrow1, and Roland Wester1,21Physikalisches Institut, Albert-Ludwigs-Universität, Freiburg — 2Institut für Ionen- und angewandte Physik, Leopold-Franzens-Universität Innsbruck — 3École Normale Supérieure, Paris — 4Center for Free Electron Laser Science, DESY, Hamburg

Trapping of molecular ions under well-controlled environmental conditions has become an important tool of molecular physics, with widespread fields of application.

We present recent experiments with molecular ions in our 22pole radio-frequency ion trap. Buffer gas cooling allows to prepare ensembles where only few internal states are populated. These systems allow to study inelastic ion-molecule collisions (e.g. reactions or clustering) in a well-controlled setting. For anions, the internal state distribution can be mapped out using photodetachment at threshold.

We also report on collision experiments with highly energetic atomic ions and charged water clusters held in a Paul trap at the ZERNIKE-LEIF facility.

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