dorsal/arxiv
View SchemaObservation of sub-natural linewidths for cold atoms in a magneto-optic trap
| Authors | Umakant D. Rapol, Ajay Wasan, Vasant Natarajan |
|---|---|
| Categories | |
| ArXiv ID | physics/0204021 |
| URL | https://arxiv.org/abs/physics/0204021 |
| DOI | 10.1209/epl/i2003-00244-6 |
| Journal | Europhys. Lett., 61 (1), pp. 53--59 (2003) |
Abstract
We have studied the absorption of a weak probe beam through cold rubidium atoms in a magneto-optic trap. The absorption spectrum shows two peaks with the smaller peak having linewidth as small as 28% of the natural linewidth. The modification happens because the laser beams used for trapping also drive the atoms coherently between the ground and excited states. This creates ``dressed'' states whose energies are shifted depending on the strength of the drive. Linewidth narrowing occurs due to quantum coherence between the dressed states. The separation of the states increases with laser intensity and detuning, as expected from this model.
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"abstract": "We have studied the absorption of a weak probe beam through cold rubidium\natoms in a magneto-optic trap. The absorption spectrum shows two peaks with the\nsmaller peak having linewidth as small as 28% of the natural linewidth. The\nmodification happens because the laser beams used for trapping also drive the\natoms coherently between the ground and excited states. This creates\n``dressed\u0027\u0027 states whose energies are shifted depending on the strength of the\ndrive. Linewidth narrowing occurs due to quantum coherence between the dressed\nstates. The separation of the states increases with laser intensity and\ndetuning, as expected from this model.",
"arxiv_id": "physics/0204021",
"authors": [
"Umakant D. Rapol",
"Ajay Wasan",
"Vasant Natarajan"
],
"categories": [
"physics.atom-ph",
"physics.optics"
],
"doi": "10.1209/epl/i2003-00244-6",
"journal_ref": "Europhys. Lett., 61 (1), pp. 53--59 (2003)",
"title": "Observation of sub-natural linewidths for cold atoms in a magneto-optic trap",
"url": "https://arxiv.org/abs/physics/0204021"
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