Cooling in reduced period optical lattices: Non-zero Raman detuning |
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Authors: | VS Malinovsky PR Berman |
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Institution: | a MagiQ Technologies Inc., 171 Madison Avenue, Suite 1300, New York, NY 10016, United States b Michigan Center for Theoretical Physics, FOCUS Center, and Physics Department, University of Michigan, Ann Arbor, MI 48109-1120, USA |
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Abstract: | In a previous paper Phys. Rev. A 72 (2005) 033415], 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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Keywords: | 32 80 Pj 32 80 Lg 32 80 &minus t |
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