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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 10 — Oct. 1, 2008
  • pp: 1667–1672

Experimental demonstration of controllable double magneto-optical traps on an atom chip

Hui Yan, Guo-Qing Yang, Tao Shi, Jin Wang, and Ming-Sheng Zhan  »View Author Affiliations


JOSA B, Vol. 25, Issue 10, pp. 1667-1672 (2008)
http://dx.doi.org/10.1364/JOSAB.25.001667


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Abstract

We demonstrate controllable double magneto-optical traps (DMOTs) on an atom chip: At first, DMOTs, which trap atoms directly from the background rubidium vapor in an ultrahigh-vacuum environment, are realized on an atom chip simultaneously. The double quadrupole magnetic fields are produced by two separate U-shaped microwires on the atom chip, combined with a bias magnetic field. Then, we determine the best parameters for a U-shaped magneto-optical trap (UMOT) through a detailed comparison of the capture ability at different currents and the bias magnetic field between two different geometric sizes of UMOT. Finally, we demonstrate the mixing and splitting of the DMOTs on the atom chip with the help of an extra pair of anti-Helmholtz coils.

© 2008 Optical Society of America

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(020.7010) Atomic and molecular physics : Laser trapping
(020.7490) Atomic and molecular physics : Zeeman effect
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: May 28, 2008
Revised Manuscript: July 27, 2008
Manuscript Accepted: July 28, 2008
Published: September 18, 2008

Citation
Hui Yan, Guo-Qing Yang, Tao Shi, Jin Wang, and Ming-Sheng Zhan, "Experimental demonstration of controllable double magneto-optical traps on an atom chip," J. Opt. Soc. Am. B 25, 1667-1672 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-10-1667

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