Abstract
We have studied the behavior of cesium atoms cooled in six-beam "gray" optical molasses. Cooling occurs for a laser detuned to the blue side of the , , transition, and a Sisyphus-type effect accumulates the atoms in states not coupled to the light. We measure a minimum temperature of 1.1±0.1 μK at low atomic density. The typical cooling time is on the order of 1 ms. A linear dependence of the temperature versus atomic density is found with a slope of ∼0.6 μK/( atoms/).
- Received 23 February 1996
DOI:https://doi.org/10.1103/PhysRevA.53.R3734
©1996 American Physical Society