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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 1 — Jan. 1, 1998
  • pp: 25–33

Optical potential for atom guidance in a dark hollow laser beam

Jianping Yin, Yifu Zhu, Wenbao Wang, Yuzhu Wang, and Wonho Jhe  »View Author Affiliations


JOSA B, Vol. 15, Issue 1, pp. 25-33 (1998)
http://dx.doi.org/10.1364/JOSAB.15.000025


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Abstract

We analyze the optical potential for atom guidance in a dark hollow laser beam and compare it with that generated by the evanescent wave in a micrometer-sized hollow optical fiber. We calculate dependence of the optical potential on various parameters: radial position r, laser–atom detuning Δ, beam power P0, and propagation distance Z. We experimentally generated a dark hollow laser beam from a hollow optical fiber with a 7-μm hole diameter and obtained a coupling efficiency of 50% for the LP01 mode. Our study shows that a dark hollow laser beam can produce an optical potential deep enough to guide cold atoms from a magneto-optical trap.

© 1998 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(190.4370) Nonlinear optics : Nonlinear optics, fibers

Citation
Jianping Yin, Yifu Zhu, Wenbao Wang, Yuzhu Wang, and Wonho Jhe, "Optical potential for atom guidance in a dark hollow laser beam," J. Opt. Soc. Am. B 15, 25-33 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-1-25

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