Gray molasses cooling of $^{39}$K to a high phase-space density - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue EPL - Europhysics Letters Année : 2013

Gray molasses cooling of $^{39}$K to a high phase-space density

Résumé

We present new techniques in cooling $^{39}$K atoms using laser light close to the D1 transition. First, a new compressed-MOT configuration is taking advantage of gray molasses type cooling induced by blue-detuned D1 light. It yields an optimized density of atoms. Then, we use pure D1 gray molasses to further cool the atoms to an ultra-low temperature of 6\,$\mu$K. The resulting phase-space density is $2\times 10^{-4}$ and will ease future experiments with ultracold potassium. As an example, we use it to directly load up to $3\times 10^7$ atoms in a far detuned optical trap, a result that opens the way to the all-optical production of potassium degenerate gases.
Fichier principal
Vignette du fichier
soumission_salomon.pdf (162.53 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00870074 , version 1 (04-10-2013)

Identifiants

Citer

Guillaume Salomon, Lauriane Fouché, Pengjun Wang, Alain Aspect, Philippe Bouyer, et al.. Gray molasses cooling of $^{39}$K to a high phase-space density. EPL - Europhysics Letters, 2013, 104, pp.63002. ⟨10.1209/0295-5075/104/63002⟩. ⟨hal-00870074⟩
567 Consultations
532 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More