Sub-Doppler cooling of sodium atoms in gray molasses

Anno: 2016

Autori: Colzi G., Durastante G., Fava E., Serafini S., Lamporesi G., Ferrari G.

Affiliazione autori: INO-CNR BEC Center and Dipartimento di Fisica, Universit`a di Trento, 38123 Povo, Italy; Trento Institute for Fundamental Physics and Applications, INFN, 38123 Povo, Italy

Abstract: We report on the realization of sub-Doppler laser cooling of sodium atoms in gray molasses using the D-1 optical transition (3s S-2(1/2) -> 3p P-2(1/2)) at 589.8 nm. The technique is applied to samples containing 3 x 10(9) atoms, previously cooled to 350 mu K in a magneto-optical trap, and it leads to temperatures as low as 9 mu K and phase-space densities in the range of 10(-4). The capture efficiency of the gray molasses is larger than 2/3, and we observe no density-dependent heating for densities up to 10(11) cm(-3).

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 93 (2)      Da Pagina: 023421-1  A: 023421-6

Maggiori informazioni: This work has been supported by the Provincia Autonoma di Trento, by the QUIC grant of the Horizon 2020 FET program, and by Istituto Nazionale di Fisica Nucleare.
Parole chiavi: laser cooling; sodium; gray molasses
DOI: 10.1103/PhysRevA.93.023421

Citazioni: 28
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-07-07
Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
Link per visualizzare la scheda su IsiWeb: Clicca qui
Link per visualizzare la citazioni su IsiWeb: Clicca qui