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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 21 — Oct. 16, 2006
  • pp: 9551–9557

Guiding and cooling of atoms in an interference field composed of two hollow beams

Zhengling Wang, Jianping Yin, and Zhengling Wang  »View Author Affiliations


Optics Express, Vol. 14, Issue 21, pp. 9551-9557 (2006)
http://dx.doi.org/10.1364/OE.14.009551


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Abstract

We propose a new scheme to guide and cool three-level alkali-metal atoms in a blue-detuned interference field composed of two counter-propagating doughnut hollow beams, and analyze the intensity distribution of the interference field of the two hollow beams and its intensity gradient one. Our study shows that the high intensity gradient of the interference field is desirable to realize intensity-gradient cooling for the guided atoms, and the minimum optical potential at the nodes of the interference field is high enough to guide almost all atoms released from a standard magneto-optical trap. We also perform Monte-Carlo simulations for dynamic process of the intensity-gradient cooling, and show that an 87Rb atomic sample with a temperature of 120µK can be directly cooled to a final equilibrium temperature of 4.71µK in our guiding scheme.

© 2006 Optical Society of America

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.7010) Lasers and laser optics : Laser trapping

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: June 23, 2006
Revised Manuscript: September 13, 2006
Manuscript Accepted: September 14, 2006
Published: October 16, 2006

Citation
Zhengling Wang, Jianping Yin, and Zhengling Wang, "Guiding and cooling of atoms in an interference field composed of two hollow beams," Opt. Express 14, 9551-9557 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-21-9551


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References

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