Evaporative cooling of cesium atoms in the gravito-optical surface trap

Details Evaporative cooling of cesium atoms in the gravito-optical surface trap Evaporative cooling of cesium atoms in the gravito-optical surface trap

2000-12-27

arxiv.org/abs/physics/0012058v1

Physics

Atomic Physics

Proceedings of the Euroconference on Atom Optics and Interferometry, Cargese, France, 26 - 29 July 2000, edt. by A. Aspect, P.

Scientific paper

We report on cooling of an atomic cesium gas closely above an evanescent-wave. Our first evaporation experiments show a temperature reduction from 10muK down to 300nK along with a gain in phase-space density of almost two orders of magnitude. In a series of measurements of heating and spin depolarization an incoherent background of resonant photons in the evanescent-wave diode laser light was found to be the limiting factor at this stage.

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