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Applied Physics B

On-axis calcium magneto-optical trap loaded with a focused decelerating laser

Reinaldo L. Cavasso Filho, Daniela A. Manoel, D. Ortega, Artemio Scalabrin, D. Pereira, Flávio C. Cruz

Published Dec 23, 2003• 9 citations
Publisher
DOI
10.1007/s00340-003-1355-8

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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.