Formation of ultracold molecules induced by a high-power single-frequency fiber laser

Autor(es)

Passagem, Henry Fernandes ; Colin-Rodriguez, Ricardo ; Ventura da Silva, Paulo Cesar ; Bouloufa-Maafa, Nadia ; Dulieu, Olivier ; Marcassa, Luis Gustavo

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS; v. 50, n. 4 FEB 2017.
• Citações Web of Science: 2

Resumo

The influence of a high-power single-frequency fiber laser on the formation of ultracold 85Rb2 molecules is investigated as a function of its frequency (in the 1062-1070 nm range) in a magneto-optical trap. We find evidence for the formation of ground-state Rb-85(2) molecules in low vibrational levels (v <= 20) with a maximal rate of 10(4). s(-1), induced by short-range photoassociation by the fiber laser followed by spontaneous emission. When this laser is used to set up a dipole trap, we measure an atomic loss rate at a wavelength far from the PA resonances, only four times smaller than that observed at a PA resonance wavelength. This work may have important consequences for atom trapping using lasers around the conventional 1064. nm wavelength. (AU)

• Processo FAPESP: 14/24479-6 - Moléculas de KRb em uma armadilha óptica
• Beneficiário: Paulo Cesar Ventura da Silva
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 13/02816-8 - Manipulação de colisões atômicas em armadilhas ópticas
• Beneficiário: Luis Gustavo Marcassa
• Modalidade de apoio: Auxílio à Pesquisa - Temático