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Darmstadt 2008 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 12: Kalte Moleküle II [gemeinsam mit MO]

Q 12.3: Vortrag

Dienstag, 11. März 2008, 11:30–11:45, 3G

On the Stark effect of NaK — •Andreas Gerdes, Horst Knöckel, and Eberhard Tiemann — Institut für Quantenoptik, Gottfried Wilhelm Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover

After preliminary measurements in a heatpipe setup [1] and characterization of our new molecular beam aparatus we show the next step of investigation concerning the heteronuclear molecule NaK. A homogeneous electric field in the detection zone will modify the rotational structure of the spectral lines under consideration. For a model description of the line shapes, not only the molecular Stark effect of the absolute ground state X  1Σ+ of the molecule, but also the splitting of the excited state B  1Π has to be taken into account. Results of our investigation into this direction will be shown. A comparison with theoretical predictions is possible [2]. Prospects heading to the target molecule KRb will be discussed.

[1] A. Gerdes et al., To be published

[2] M. Aymar and O. Dulieu, J. Chem. Phys 122 204302 (2005)

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