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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 6 — Jun. 1, 2000
  • pp: 1039–1050

Theory of atom guidance in a hollow laser beam: dressed-atom approach

Xinye Xu, Yuzhu Wang, and Wonho Jhe  »View Author Affiliations


JOSA B, Vol. 17, Issue 6, pp. 1039-1050 (2000)
http://dx.doi.org/10.1364/JOSAB.17.001039


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Abstract

We present a general theory of atom guiding in a blue-detuned hollow laser beam. Using the dressed-atom approach, we obtain the mean dipole gradient force, the radiation pressure force, and the momentum diffusion coefficients for three-level Λ-type cold atoms. Using Monte Carlo simulation, we calculate the guiding efficiencies and the final velocity distributions of atoms for various conditions. We find that the guiding efficiency depends not only on the intensity and detuning of the guiding hollow beam but also on the atom-guiding direction with respect to the propagation direction of the hollow laser beam. Comparing our analyses with recent experimental results, we find that they are mutually consistent. The results that we present can also be applied to atom guiding by hollow optical fibers.

© 2000 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(060.2310) Fiber optics and optical communications : Fiber optics
(140.3320) Lasers and laser optics : Laser cooling
(230.7370) Optical devices : Waveguides
(270.0270) Quantum optics : Quantum optics
(270.6620) Quantum optics : Strong-field processes
(300.6210) Spectroscopy : Spectroscopy, atomic

Citation
Xinye Xu, Yuzhu Wang, and Wonho Jhe, "Theory of atom guidance in a hollow laser beam: dressed-atom approach," J. Opt. Soc. Am. B 17, 1039-1050 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-6-1039


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