A multibeam atom laser: coherent atom beam splitting from a single far detuned laser

Details A multibeam atom laser: coherent atom beam splitting from a single far detuned laser A multibeam atom laser: coherent atom beam splitting from a single far detuned laser

2007-09-07

arxiv.org/abs/0709.1017v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevA.77.031603

We report the experimental realisation of a multibeam atom laser. A single continuous atom laser is outcoupled from a Bose-Einstein condensate (BEC) via an optical Raman transition. The atom laser is subsequently split into up to five atomic beams with slightly different momenta, resulting in multiple, nearly co-propagating, coherent beams which could be of use in interferometric experiments. The splitting process itself is a novel realization of Bragg diffraction, driven by each of the optical Raman laser beams independently. This presents a significantly simpler implementation of an atomic beam splitter, one of the main elements of coherent atom optics.

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