Darmstadt 2008 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 62: Ultrakalte Atome (Fallen und Kühlung)
Q 62.7: Talk
Friday, March 14, 2008, 15:30–15:45, 3B
A high-flux atomic source for transportable experiments — •Tais Gorkhover, Ulrich Eismann, Alexander Senger, Malte Schmidt, and Achim Peters — Institut für Physik, Humboldt-Universität zu Berlin
We present a setup for a compact and robust vapor loaded MOT for Rubidium atoms suitable as an atomic source for transportable experiments as the FINAQS GAIN (Gravimetry Atom Interferometer) experiment at the HU-Berlin.
The design is based on a modified 2D-MOT with the two pairs of opposing trap-beams tilted towards the line of flight of the cold atoms allowing for longitudinal cooling of the atom beam. Using a moving molasses scheme the atoms can be launched with a narrow velocity distribution and low mean velocity. Our setup features large MOT-beam diameter and the possibility of three adjacent cooling stages which should allow for high fluxes (>1012 atoms/s) and a highly recapturable beam. We report on technical details of the setup and first characterisations.