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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 21 — Oct. 17, 2005
  • pp: 8406–8423

Atomic (or molecular) guiding using a blue-detuned doughnut mode in a hollow metallic waveguide

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


Optics Express, Vol. 13, Issue 21, pp. 8406-8423 (2005)
http://dx.doi.org/10.1364/OPEX.13.008406


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Abstract

We propose a new scheme to guide cold atoms (or molecules) using a blue-detuned TE01 doughnut mode in a hollow metallic waveguide (HMW), and analyze the electromagnetic field distributions of various modes in the HMW. We calculate the optical potentials of the TE01 doughnut mode for three-level atoms using dressed-atom approach, and find that the optical potential of the TE01 mode is high enough to guide cold atoms released from a standard magneto-optical trap. Our study shows that when the input laser power is 0.5W and its detuning is 3GHz, the guiding efficiency of cold atoms in the straight HMW with a hollow radius of 15 μm can reach 98%, and this guiding efficiency will be almost unchanged with the change of curvature radius R of the bent HMW as R > 2cm, which is a desirable scheme to do some atom-optics experiments or realize a computer-controlled atom lithography with an arbitrary pattern. We also analyze the losses of the guided atoms in the HMW due to the spontaneous emission and background thermal collisions and briefly discuss some potential applications of our guiding scheme in atom and molecule optics.

© 2005 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:
Research Papers

History
Original Manuscript: July 22, 2005
Revised Manuscript: September 30, 2005
Published: October 17, 2005

Citation
Zhengling Wang, Meng Dai, and Jianping Yin, "Atomic (or molecular) guiding using a blue-detuned doughnut mode in a hollow metallic waveguide," Opt. Express 13, 8406-8423 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-21-8406


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