Deceleration, trapping, and two-photon cooling of calcium atoms
JOSA B, Vol. 20, Issue 5, pp. 994-1002 (2003)
http://dx.doi.org/10.1364/JOSAB.20.000994
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Abstract
We report on a system for atomic beam deceleration and magneto-optical trapping of calcium atoms that uses the 1S0–1P1 transition, in which a single laser is used to trap and slow the atoms. The slower laser beam is focused near the magneto-optical trap’s center, which has a waist size much smaller than the atomic cloud such that its influence on the trapped atoms is greatly reduced. We also investigate the theoretical possibility of cooling by use of a two-photon (4s2)1S0–(4s5s)1S0 transition. Excitation near resonance with the 1P1 level results in an equilibrium temperature seven times smaller than the Doppler limit of the 1S0–1P1 transition.
© 2003 Optical Society of America
[Optical Society of America ]
OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(020.4180) Atomic and molecular physics : Multiphoton processes
(020.7010) Atomic and molecular physics : Laser trapping
Citation
Reinaldo L. Cavasso Filho, Wictor C. Magno, Daniela A. Manoel, Artemio Scalabrin, Daniel Pereira, and Flavio C. Cruz, "Deceleration, trapping, and two-photon cooling of calcium atoms," J. Opt. Soc. Am. B 20, 994-1002 (2003)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-20-5-994
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