Two-photon doppler cooling of alkaline-earth-metal and ytterbium atoms
| Autor: | Magno, Wictor Carlos, Cavasso Filho, Reinaldo Luiz, 1974, Cruz, Flávio Caldas da, 1966 |
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| Přispěvatelé: | UNIVERSIDADE ESTADUAL DE CAMPINAS |
| Rok vydání: | 2003 |
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| Zdroj: | Repositório da Produção Científica e Intelectual da Unicamp Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP |
| Popis: | Agradecimentos: This work was supported by the Brazilian government agencies FAPESP (including its Optics and Photonics Center), CAPES, CNPq, and FAEP-UNICAMP. F.C.C. benefited from fruitful discussions with C. W. Oates, J. C. Bergquist, W. M. Itano, N. Beverini, and A. Hemmerich 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 FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ Aberto |
| Databáze: | OpenAIRE |
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