dorsal/arxiv
View SchemaCold trapped atoms detected with evanescent waves
| Authors | R. A. Cornelussen, A. H. van Amerongen, B. T. Wolschrijn, R. J. C. Spreeuw, H. B. van Linden van den Heuvell |
|---|---|
| Categories | |
| ArXiv ID | physics/0205014 |
| URL | https://arxiv.org/abs/physics/0205014 |
| DOI | 10.1140/epjd/e2002-00205-1 |
| Journal | Eur. Phys. J. D 21, 347-351 (2002) |
Abstract
We demonstrate the in situ detection of cold 87 Rb atoms near a dielectric surface using the absorption of a weak, resonant evanescent wave. We have used this technique in time of flight experiments determining the density of atoms falling on the surface. A quantitative understanding of the measured curve was obtained using a detailed calculation of the evanescent intensity distribution. We have also used it to detect atoms trapped near the surface in a standing-wave optical dipole potential. This trap was loaded by inelastic bouncing on a strong, repulsive evanescent potential. We estimate that we trap 1.5 x 10 4 atoms at a density 100 times higher than the falling atoms.
{
"annotation_id": "2a20026f-9567-4198-9d4e-8f87e90042f0",
"date_created": "2026-03-02T18:00:39.606000Z",
"date_modified": "2026-03-02T18:00:39.606000Z",
"file_hash": "852ace9859661abb40ae500e06633bff5e8528be59cde39054c3acee7e316446",
"private": false,
"record": {
"abstract": "We demonstrate the in situ detection of cold 87 Rb atoms near a dielectric\nsurface using the absorption of a weak, resonant evanescent wave. We have used\nthis technique in time of flight experiments determining the density of atoms\nfalling on the surface. A quantitative understanding of the measured curve was\nobtained using a detailed calculation of the evanescent intensity distribution.\nWe have also used it to detect atoms trapped near the surface in a\nstanding-wave optical dipole potential. This trap was loaded by inelastic\nbouncing on a strong, repulsive evanescent potential. We estimate that we trap\n1.5 x 10 4 atoms at a density 100 times higher than the falling atoms.",
"arxiv_id": "physics/0205014",
"authors": [
"R. A. Cornelussen",
"A. H. van Amerongen",
"B. T. Wolschrijn",
"R. J. C. Spreeuw",
"H. B. van Linden van den Heuvell"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1140/epjd/e2002-00205-1",
"journal_ref": "Eur. Phys. J. D 21, 347-351 (2002)",
"title": "Cold trapped atoms detected with evanescent waves",
"url": "https://arxiv.org/abs/physics/0205014"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "5ce3785d-de9a-461b-9234-27a2085ee4ca",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}