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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 13, Iss. 2 — Jun. 25, 2009
  • pp: 223–226

A Magneto-optical Trap Below a Dielectric Coated Mirror Surface

Hoon Yu, Lim Lee, Kyung-Hyun Lee, and Jung-Bog Kim  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 13, Issue 2, pp. 223-226 (2009)


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Abstract

A Magneto-Optical Trap (MOT) for <TEX>$^{87}Rb$</TEX> atoms near the surface of a dielectric coated mirror at the top of a small <TEX>$20{\times}25{\times}40\;mm^3$</TEX> cell has been observed. Two beams of <TEX>$3.3\;mW/cm^2$</TEX> were used for optical cooling and an anti-Helmholtz magnetic field with a spatial gradient of 9.1 G/cm was used for magnetic trapping. The thickness of the mirror coated on a cover glass was less than <TEX>$100{\mu}m$</TEX>. The mirror covered the top of a cell and the atom-chip was located outside the vacuum in order to exploit the long life time of the mirror and easy operation of the chip. The trapping position was found 5 mm beneath the mirror surface. The number of trapped atoms was roughly <TEX>$3{\times}10^7$</TEX> atoms and the temperature was approximately a few tens mK. In this paper, we describe the construction of the mirror-MOT in detail.

© 2009 Optical Society of Korea

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(020.7010) Atomic and molecular physics : Laser trapping

History
Original Manuscript: February 5, 2008
Revised Manuscript: April 30, 2008
Manuscript Accepted: April 30, 2008
Published: June 25, 2009

Citation
Hoon Yu, Lim Lee, Kyung-Hyun Lee, and Jung-Bog Kim, "A Magneto-optical Trap Below a Dielectric Coated Mirror Surface," J. Opt. Soc. Korea 13, 223-226 (2009)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-13-2-223


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