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Hannover 2010 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 26: Laser Development: Solid State Lasers III

Q 26.5: Talk

Wednesday, March 10, 2010, 11:30–11:45, F 128

A new laser source for trapping Lithium — •Ulrich Eismann1, Frédéric Chevy1, Fabrice Gerbier1, Gérard Trénec2, Jacques Vigué2, and Christophe Salomon11Laboratoire Kastler Brossel, CNRS UMR 8552, UPMC, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, France — 2Laboratoire Collisions Agrégats Réactivité, CNRS UMR 5589 - Université Paul Sabatier Toulouse 3, Route de Narbonne, 31062 Toulouse Cedex, France

We present a powerful new laser setup for light-induced manipulation of Lithium atoms which is currently being developed within the framework of the Fermix experiment at ENS.

The design is based on a diode-pumped solid state Nd:YVO4 ring laser, operating on the 4F3/2→   4I13/2 transition near 1342 nm. The infrared light is subsequently frequency doubled to the Lithium-6 D2 resonance at 670.977 nm in an enhancement cavity using periodically poled Potassium Titanyl Phosphate (ppKTP). Hereby, a special locking technique is applied.

The results obtained so far indicate a higher performance in terms of power, spatial mode quality and simplicity compared to the existing laser sources in the same wavelength range.

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