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Type: Artigo de periódico
Title: Deceleration, trapping, and two-photon cooling of calcium atoms
Author: Cavasso, RL
Magno, WC
Manoel, DA
Scalabrin, A
Pereira, D
Cruz, FC
Abstract: We report on a system for atomic beam deceleration and magneto-optical trapping of calcium atoms that uses the S-1(0)-P-1(1) 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 (4s(2))S-1(0)-(4s5s)S-1(0) transition. Excitation near resonance with the P-1(1) level results in an equilibrium temperature seven times smaller than the Doppler limit of the S-1(0)-P-1(1) transition. (C) 2003 Optical Society of America.
Country: EUA
Editor: Optical Soc Amer
Rights: aberto
Identifier DOI: 10.1364/JOSAB.20.000994
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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