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Journal of Atomic and Molecular Physics

Coherent properties of a atom laser originating from stimulated Raman transition

Hui He

Published Jan 1, 2009• 0 citations
OpenAlex

Abstract

The coherent properties of a atom laser originating from stimulated Raman transition of the atoms in Bose-Einstein condensate interacting with light fields is studied.The results show that this atom laser is antibunching,but in some conditions it is second-order coherent.

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We demonstrate a method of inducing an optical Feshbach resonance based on a coherent free-bound stimulated Raman transition. In our experiment atoms in a 87Rb^{87}\mathrm{Rb}87Rb Bose-Einstein condensate are exposed to two phase-locked Raman laser beams which couple pairs of colliding atoms to a molecular ground state. By controlling the power and relative detuning of the two laser beams, we can change the atomic scattering length considerably. The dependence of scattering length on these parameters is studied experimentally and modeled theoretically.
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