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Q: Fachverband Quantenoptik und Photonik
Q 12: Kalte Moleküle II [gemeinsam mit MO]
Q 12.5: Talk
Tuesday, March 11, 2008, 12:00–12:15, 3G
Triplet spectroscopy on ultracold 87Rb2 molecules — •Florian Lang1, Gregor Thalhammer1,2, Klaus Winkler1, Christoph Strauss1, Rudolf Grimm1,3, and Johannes Hecker Denschlag1 — 1Institut für Experimentalphysik und Forschungszentrum für Quantenphysik, Universität Innsbruck — 2LENS European Laboratory for Nonlinear Spectroscopy and Dipartimento di Fisica, Università di Firenze — 3Institut für Quantenoptik und Quanteninformation,Österreichische Akademie der Wissenschaften
Starting from a pure sample of ultracold 87Rb2 Feshbach molecules held in a 3D optical lattice we have performed spectroscopic measurements on electronically excited triplet molecules. We investigate the vibrational ladder down to the vibrational ground state with high resolution in the order of 1 MHz and find good coupling strength to the electronic ground state. In combination of our previous results[1],[2] this offers a promising route towards the production of molecules in the triplet ground state. In my talk I will report on the latest progress in our work.
[1] Coherent optical transfer of Feshbach molecules to a lower vibrational state, K. Winkler, F. Lang, G. Thalhammer, P. v.d. Straten, R. Grimm, J. Hecker Denschlag Phys. Rev. Lett. 98, 043201 (2007)
[2] Cruising through molecular bound state manifolds with radio frequency, F. Lang, P.v.d. Straten, B. Brandstätter, G. Thalhammer, K. Winkler, P.S. Julienne, R. Grimm, J. Hecker Denschlag, submitted for publication, arXiv:0708.3958