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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 13601–13608

Single-laser, one beam, tetrahedral magneto-optical trap

Matthieu Vangeleyn, Paul F. Griffin, Erling Riis, and Aidan S. Arnold  »View Author Affiliations


Optics Express, Vol. 17, Issue 16, pp. 13601-13608 (2009)
http://dx.doi.org/10.1364/OE.17.013601


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Abstract

We have realized a 4-beam pyramidal magneto-optical trap ideally suited for future microfabrication. Three mirrors split and steer a single incoming beam into a tripod of reflected beams, allowing trapping in the four-beam overlap volume. We discuss the influence of mirror angle on cooling and trapping, finding optimum efficiency in a tetrahedral configuration. We demonstrate the technique using an ex-vacuo mirror system to illustrate the previously inaccessible supra-plane pyramid MOT configuration. Unlike standard pyramidal MOTs both the pyramid apex and its mirror angle are non-critical and our MOT offers improved molasses free from atomic shadows in the laser beams. The MOT scheme naturally extends to a 2-beam refractive version with high optical access. For quantum gas experiments, the mirror system could also be used for a stable 3D tetrahedral optical lattice.

© 2009 Optical Society of America

OCIS Codes
(140.3320) Lasers and laser optics : Laser cooling
(020.1335) Atomic and molecular physics : Atom optics

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: May 13, 2009
Revised Manuscript: June 23, 2009
Manuscript Accepted: June 24, 2009
Published: July 23, 2009

Citation
Matthieu Vangeleyn, Paul F. Griffin, Erling Riis, and Aidan S. Arnold, "Single-laser, one beam, tetrahedral magneto-optical trap," Opt. Express 17, 13601-13608 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-16-13601


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