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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 5 — Mar. 3, 2008
  • pp: 2909–2914

Deep optical trap for cold alkaline-Earth atoms

Luciano S. Cruz, Milena Sereno, and Flavio C. Cruz  »View Author Affiliations

Optics Express, Vol. 16, Issue 5, pp. 2909-2914 (2008)

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We describe a setup for a deep optical dipole trap or lattice designed for holding atoms at temperatures of a few mK, such as alkaline-Earth atoms which have undergone only regular Doppler cooling. We use an external optical cavity to amplify 3.2 W from a commercial single-frequency laser at 532 nm to 523 W. Powers of a few kW, attainable with low-loss optics or higher input powers, allow larger trap volumes for improved atom transfer from magneto-optical traps. We analyze possibilities for cooling inside the deep trap, the induced Stark shifts for calcium, and a cancellation scheme for the intercombination clock transition using an auxiliary laser.

© 2008 Optical Society of America

OCIS Codes
(020.6580) Atomic and molecular physics : Stark effect
(020.7010) Atomic and molecular physics : Laser trapping
(140.4780) Lasers and laser optics : Optical resonators
(020.3320) Atomic and molecular physics : Laser cooling

ToC Category:

Original Manuscript: December 12, 2007
Revised Manuscript: February 9, 2008
Manuscript Accepted: February 10, 2008
Published: February 15, 2008

Luciano S. Cruz, Milena Sereno, and Flavio C. Cruz, "Deep optical trap for cold alkaline-Earth atoms," Opt. Express 16, 2909-2914 (2008)

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