dorsal/arxiv
View SchemaOptical and evaporative cooling of cesium atoms in the gravito-optical surface trap
| Authors | M. Hammes, D. Rychtarik, V. Druzhinina, U. Moslener, I. Manek-Hönninger, R. Grimm |
|---|---|
| Categories | |
| ArXiv ID | physics/0005035 |
| URL | https://arxiv.org/abs/physics/0005035 |
| DOI | 10.1080/09500340008232195 |
| Journal | J. Mod. Opt. 47, 2755 (2000) |
Abstract
We report on cooling of an atomic cesium gas closely above an evanescent-wave atom mirror. At high densitities, optical cooling based on inelastic reflections is found to be limited by a density-dependent excess temperature and trap loss due to ultracold collisions involving repulsive molecular states. Nevertheless, very good starting conditions for subsequent evaporative cooling are obtained. 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.
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"abstract": "We report on cooling of an atomic cesium gas closely above an evanescent-wave\natom mirror. At high densitities, optical cooling based on inelastic\nreflections is found to be limited by a density-dependent excess temperature\nand trap loss due to ultracold collisions involving repulsive molecular states.\nNevertheless, very good starting conditions for subsequent evaporative cooling\nare obtained. Our first evaporation experiments show a temperature reduction\nfrom 10muK down to 300nK along with a gain in phase-space density of almost two\norders of magnitude.",
"arxiv_id": "physics/0005035",
"authors": [
"M. Hammes",
"D. Rychtarik",
"V. Druzhinina",
"U. Moslener",
"I. Manek-H\u00f6nninger",
"R. Grimm"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1080/09500340008232195",
"journal_ref": "J. Mod. Opt. 47, 2755 (2000)",
"title": "Optical and evaporative cooling of cesium atoms in the gravito-optical surface trap",
"url": "https://arxiv.org/abs/physics/0005035"
},
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