title: 3D raman sideband cooling of cesium atoms at high density
abstract: We laser cool 5x10(7) Cs atoms to a spin-polarized phase space density of 1/30, the highest ever obtained by laser cooling. It is achieved by compression and polarization gradient cooling in a 3D far-off-resonant optical lattice, followed by 3D Raman sideband cooling optimized at a density of 1.5x10(12) atoms/cm(3), and adiabatic release. In the lattice, 23% of the sites are occupied, 95% of the atoms are in the lowest energy magnetic sublevel, and 37% are in the lowest 3D vibrational state.
authors.affiliation: Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA.
authors.initials: DJ
authors.lastname: Han
authors.initials: S
authors.lastname: Wolf
authors.initials: S
authors.lastname: Oliver
authors.initials: C
authors.lastname: McCormick
authors.initials: MT
authors.lastname: DePue
authors.initials: DS
authors.lastname: Weiss