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Hannover 2016 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 11: Poster: Quantum Optics and Photonics I

Q 11.20: Poster

Monday, February 29, 2016, 16:30–19:00, Empore Lichthof

High resolution imaging system for experiments on degenerate NaK — •Roman Bause1,2, Frauke Seeßelberg1, Nikolaus Buchheim1, Zhenkai Lu1, Immanuel Bloch1,2, and Christoph Gohle11Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany — 2Ludwig-Maximilians-Universität, Schellingstraße 4, 80799 München, Germany

Ultracold mixtures of two species of atoms could be used to study a wide range of open problems. To investigate such systems, we have constructed an apparatus that can produce a degenerate Bose-Fermi mixture of 23Na and 40K atoms. Among other things, we are planning to investigate quantum gases with a tunable dipole-dipole interaction, which could be done by producing NaK molecules in their absolute ground state.

A crucial ingredient for such experiments is an imaging system that allows observation of both atomic species with sub-micrometer resolution. We achieve this with a custom objective (NA=0.6), which offers diffraction-limited imaging at wavelengths of 589 and 767nm. It simultaneously supports a near-infrared optical lattice for 2D confinement of the atomic or molecular sample in the object plane of the system. We will present the experiences we have made during the construction and testing of this setup.

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