dorsal/arxiv
View SchemaTwo-photon and EIT-assisted Doppler cooling in a three-level cascade system
| Authors | Giovanna Morigi, Ennio Arimondo |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0610223 |
| URL | https://arxiv.org/abs/quant-ph/0610223 |
| DOI | 10.1103/PhysRevA.75.051404 |
| Journal | Phys. Rev. A 75, 051404(R) (2007). |
Abstract
Laser cooling is theoretically investigated in a cascade three-level scheme, where the excited state of a laser-driven transition is coupled by a second laser to a top, more stable level, as for alkali-earth atoms. The second laser action modifies the atomic scattering cross section and produces temperatures lower than those reached by Doppler cooling on the lower transition. When multiphoton processes due to the second laser are relevant, an electromagnetic induced transparency modifies the absorption of the first laser, and the final temperature is controlled by the second laser parameters. When the intermediate state is only virtually excited, the dynamics is dominated by the two-photon process and the final temperature is determined by the spontaneous decay rate of the top state.
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"abstract": "Laser cooling is theoretically investigated in a cascade three-level scheme,\nwhere the excited state of a laser-driven transition is coupled by a second\nlaser to a top, more stable level, as for alkali-earth atoms. The second laser\naction modifies the atomic scattering cross section and produces temperatures\nlower than those reached by Doppler cooling on the lower transition. When\nmultiphoton processes due to the second laser are relevant, an electromagnetic\ninduced transparency modifies the absorption of the first laser, and the final\ntemperature is controlled by the second laser parameters. When the intermediate\nstate is only virtually excited, the dynamics is dominated by the two-photon\nprocess and the final temperature is determined by the spontaneous decay rate\nof the top state.",
"arxiv_id": "quant-ph/0610223",
"authors": [
"Giovanna Morigi",
"Ennio Arimondo"
],
"categories": [
"quant-ph",
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.75.051404",
"journal_ref": "Phys. Rev. A 75, 051404(R) (2007).",
"title": "Two-photon and EIT-assisted Doppler cooling in a three-level cascade system",
"url": "https://arxiv.org/abs/quant-ph/0610223"
},
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