Raman cooling of spin-polarized cesium atoms in a crossed dipole trap
Laboratoire Kastler Brossel, École Normale Supérieure
24 rue Lhomond, 75231 Paris Cedex 05, France
Accepted: 11 February 1999
We describe a Raman cooling scheme that allows for the simultaneous polarization and cooling of cesium atoms. Using efficient chirped Raman pulses, cesium atoms confined in a red-detuned crossed dipole trap are 80 % polarized and cooled to a temperature of K. After cooling, the phase-space density reaches 10-3. We have strong evidence that this value is limited by multiple photon scattering within the atomic cloud.
PACS: 32.80.Pj – Optical cooling of atoms; trapping / 32.80.Qk – Coherent control of atomic interactions with photons
© EDP Sciences, 1999