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Type: Artigo de periódico
Title: Two-photon Doppler cooling of alkaline-earth-metal and ytterbium atoms
Author: Magno, WC
Cavasso, RL
Cruz, FC
Abstract: The possibility of laser cooling of alkaline-earth-metal atoms and ytterbium atoms using a two-photon transition is analyzed. We consider a S-1(0)-S-1(0) transition with excitation in near resonance with the P-1(1) level. This greatly increases the two-photon transition rate, allowing an effective transfer of momentum. The experimental implementation of this technique is discussed and we show that for calcium, for example, two-photon cooling can be used to achieve a Doppler limit of 123 muK. The efficiency of this cooling scheme and the main loss mechanisms are analyzed.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.67.043407
Date Issue: 2003
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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