dorsal/arxiv
View SchemaLoading of a Rb magneto-optic trap from a getter source
| Authors | Umakant D. Rapol, Ajay Wasan, Vasant Natarajan |
|---|---|
| Categories | |
| ArXiv ID | physics/0204022 |
| URL | https://arxiv.org/abs/physics/0204022 |
| DOI | 10.1103/PhysRevA.64.023402 |
| Journal | Physical Review A 64, 023402 (2001) |
Abstract
We study the properties of a Rb magneto-optic trap loaded from a commercial getter source which provides a large flux of atoms for the trap along with the capability of rapid turn-off necessary for obtaining long trap lifetimes. We have studied the trap loading at two different values of background pressure to determine the cross-section for Rb--N$_2$ collisions to be 3.5(4)x10^{-14} cm^2 and that for Rb--Rb collisions to be of order 3x10^{-13} cm^2. At a background pressure of 1.3x10^{-9} torr, we load more than 10^8 atoms into the trap with a time constant of 3.3 s. The 1/e lifetime of trapped atoms is 13 s limited only by background collisions.
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"abstract": "We study the properties of a Rb magneto-optic trap loaded from a commercial\ngetter source which provides a large flux of atoms for the trap along with the\ncapability of rapid turn-off necessary for obtaining long trap lifetimes. We\nhave studied the trap loading at two different values of background pressure to\ndetermine the cross-section for Rb--N$_2$ collisions to be 3.5(4)x10^{-14} cm^2\nand that for Rb--Rb collisions to be of order 3x10^{-13} cm^2. At a background\npressure of 1.3x10^{-9} torr, we load more than 10^8 atoms into the trap with a\ntime constant of 3.3 s. The 1/e lifetime of trapped atoms is 13 s limited only\nby background collisions.",
"arxiv_id": "physics/0204022",
"authors": [
"Umakant D. Rapol",
"Ajay Wasan",
"Vasant Natarajan"
],
"categories": [
"physics.atom-ph",
"physics.optics"
],
"doi": "10.1103/PhysRevA.64.023402",
"journal_ref": "Physical Review A 64, 023402 (2001)",
"title": "Loading of a Rb magneto-optic trap from a getter source",
"url": "https://arxiv.org/abs/physics/0204022"
},
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