Cooling in reduced period optical lattices: non-zero Raman detuning

Details Cooling in reduced period optical lattices: non-zero Raman detuning Cooling in reduced period optical lattices: non-zero Raman detuning

2006-05-06

arxiv.org/abs/physics/0605052v1

Physics

Atomic Physics

Scientific paper

10.1016/j.optcom.2006.05.002

In a previous paper [Phys. Rev. A 72, 033415 (2005)], it was shown that sub-Doppler cooling occurs in a standing-wave Raman scheme (SWRS) that can lead to reduced period optical lattices. These calculations are extended to allow for non-zero detuning of the Raman transitions. New physical phenomena are encountered, including cooling to non-zero velocities, combinations of Sisyphus and "corkscrew" polarization cooling, and somewhat unusual origins of the friction force. The calculations are carried out in a semi-classical approximation and a dressed state picture is introduced to aid in the interpretation of the results.

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