| Texto completo | |
| Autor(es): |
Passagem, Henry Fernandes
[1]
;
Colin-Rodriguez, Ricardo
[1]
;
Tallant, Jonathan
[1]
;
Ventura da Silva, Paulo Cesar
[1]
;
Bouloufa-Maafa, Nadia
[2]
;
Dulieu, Olivier
[2]
;
Marcassa, Luis Gustavo
[1]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Inst Fis Sao Carlos, Caixa Postal 369, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Paris Saclay, Univ Paris Sud, CNRS, Lab Aime Cotton, ENS Cachan, F-91405 Orsay - France
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Physical Review Letters; v. 122, n. 12 MAR 26 2019. |
| Citações Web of Science: | 0 |
| Resumo | |
We have developed an approach to continuously load ultracold Rb-85(2) vibrational ground-state molecules into a crossed optical dipole trap from a magneto-optical trap. The technique relies on a single high-power light beam with a broad spectrum superimposed onto a narrow peak at an energy of about 9400 cm(-1). This single laser source performs all the required steps: the short-range photoassociation creating ground-state molecules after radiative emission, the cooling of the molecular vibrational population down to the lowest vibrational level v(X) = 0, and the optical trapping of these molecules. Furthermore, we probe by depletion spectroscopy and determine that 75% of the v(X) = 0 ground-state molecules are in the three lowest rotational levels J(X) = 0, 1, 2. The lifetime of the ultracold molecules in the optical dipole trap is limited to about 70 ms by off-resonant light scattering. The proposed technique opens perspectives for the formation of new molecular species in the ultracold domain, which are not yet accessible by well-established approaches. (AU) | |
| Processo FAPESP: | 11/23533-9 - Moléculas frias em um rede óptica |
| Beneficiário: | Jonathan Eugene Tallant |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 13/02816-8 - Manipulação de colisões atômicas em armadilhas ópticas |
| Beneficiário: | Luis Gustavo Marcassa |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| 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 |