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Proceedings Paper

Semiclassical consideration of laser cooling of unbound atoms in nondissipative optical lattice
Author(s): Natalia A. Matveeva; Alexey V. Taichenachev
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Paper Abstract

The semiclassical theory of laser cooling is applied for the analysis of cooling of unbound atoms with the values of the ground and exited state angular moments 1/2 in a one-dimensional nondissipative optical lattice. We show that in the low-saturation limit with respect to the pumping field a qualitative interpretation of the cooling mechanisms can be made by the consideration of effective two-level system of the ground-state sublevels. It is clarified that in the limit of weak Raman transitions the cooling mechanism is similar to the Doppler mechanism, which is known in the theory of two-level atom. In the limit of strong Raman transitions the cooling mechanism is similar to the known Sisyphus mechanism. In the slow atom approximation the analytical expressions for the coefficients of friction, spontaneous and induced diffusion are given, and the kinetic temperature is estimated.

Paper Details

Date Published: 19 July 2007
PDF: 10 pages
Proc. SPIE 6726, ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information, 67261Z (19 July 2007); doi: 10.1117/12.752256
Show Author Affiliations
Natalia A. Matveeva, Novosibirsk State Univ. (Russia)
Alexey V. Taichenachev, Novosibirsk State Univ. (Russia)
Institute of Laser Physics (Russia)


Published in SPIE Proceedings Vol. 6726:
ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information

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