Hannover 2013 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 56: Poster III

Q 56.38: Poster

Donnerstag, 21. März 2013, 16:00–18:30, Empore Lichthof

Interferometric optical lattice for higher bands of ultracold quantum gases — •Raphael Eichberger, Matthias Ölschläger, Georg Wirth, and Andreas Hemmerich — Institut für Laserphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

We present a new setup of a bipartite optical square lattice for ultracold quantum gases. The symmetrie of the lattice potential depends on the time phase difference between two optical standing waves and the individual intensity of the four involved laser beams. To achieve the full control of these parameters we build up a new kind of Michelson-Interferometer.

With this interferometric optical lattice we want to excite ultracold atoms - Bosons and Fermions - into higher bands and study new interesting many body phenomena. Here, we report on basic ideas and our recent progress.