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Düsseldorf 2007 – scientific programme

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MO: Fachverband Molekülphysik

MO 54: Poster: Electronic Spectroscopy

MO 54.2: Poster

Thursday, March 22, 2007, 16:30–18:30, Poster A

Partially automated analysis of LiCs laser induced fluorescence spectra — •Alexander Stein1, Asen Pashov2, Peter Staanum1, Horst Knöckel1, and Eberhard Tiemann11Institut für Quantenoptik, Gottfried Wilhelm Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover — 2Department of Physics, Sofia University, 5 James Bourchier Boulevard, 1164 Sofia, Bulgaria

The precise knowledge of excited states of alkali dimers is for example of importance for the formation of cold molecules by photoassociation[1] and subsequent stimulation to ro-vibrational levels of the ground state. A powerful method for gaining this information is the evaluation of laser induced fluorescence spectra dispersed by a high resolution Fourier-transform spectrometer and additionally producing rotational satellite lines by higher buffer gas pressures[2]. Because the assignment of this huge number of transitions is very time consuming and error-prone a special software for a partial automatization of this analysis was developed. The program has been successfully applied to the spectra of LiCs measured originally for the precise determination of the ground state[3]. The program and the resulting potentials for the B1Π and D1Π state of LiCs will be presented.

[1] S. D. Kraft et al. J. Phys. B 39 993, 2006.

[2] O. Docenko et al. Eur. Phys. J. D 36 49, 2005.

[3] P. Staanum et al. submitted to Phys. Ref. A, 2006.

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