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MO: Fachverband Molekülphysik
MO 17: Elektronische Spektroskopie
MO 17.2: Poster
Dienstag, 11. März 2008, 14:00–19:00, Poster C1
High resolution Fourier transform spectroscopy on Sr2 — •Alexander Stein, Horst Knöckel, and Eberhard Tiemann — Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover
Strontium actually is a candidate for a new and more precise frequency standard (e.g. I. Courtillot et al., Phys. Ref. A 68, 030501(R) (2003)). Hence there is a high interest in cooling and trapping of cold strontium atoms (M. Yasuda and H. Katori, Phys. Rev. Let. 92, 153004 (2004)). At the moment there are no sufficiently precise potentials available for the Sr2 molecule allowing the calculation of collisional properties as the scattering length.
We report on new spectroscopic investigations using a heat pipe setup. The current status of the experiment and improved potentials of the X1Σg+ ground state and the excited 2(A)1Σu+ state will be presented.