| Full text | |
| Author(s): |
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]
Total Authors: 7
|
| Affiliation: | [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
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Physical Review Letters; v. 122, n. 12 MAR 26 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
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) | |
| FAPESP's process: | 11/23533-9 - Cold molecules in an optical lattice |
| Grantee: | Jonathan Eugene Tallant |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 13/02816-8 - Manipulation of atomic collisions in optical traps |
| Grantee: | Luis Gustavo Marcassa |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 14/24479-6 - KRb molecules in an optical dipole TRAP |
| Grantee: | Paulo Cesar Ventura da Silva |
| Support Opportunities: | Scholarships in Brazil - Master |