dorsal/arxiv
View SchemaNarrow Spectral Feature In Resonance Fluorescence With A Single Monochromatic Laser Field
| Authors | Joerg Evers, Christoph H. Keitel |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0109117 |
| URL | https://arxiv.org/abs/quant-ph/0109117 |
| DOI | 10.1103/PhysRevA.65.033813 |
| Journal | J. Evers and C. H. Keitel, Phys. Rev. A 65, 033813 (2002) |
Abstract
We describe the resonance fluorescence spectrum of an atomic three-level system where two of the states are coupled by a single monochromatic laser field. The influence of the third energy level, which interacts with the two laser-coupled states only via radiative decays, is studied in detail. For a suitable choice of parameters, this system gives rise to a very narrow structure at the laser frequency in the fluorescence spectrum which is not present in the spectrum of a two-level atom. We find those parameter ranges by a numerical analysis and use the results to derive analytical expressions for the additional narrow peak. We also derive an exact expression for the peak intensity under the assumption that a random telegraph model is applicable to the system. This model and a simple spring model are then used to describe the physical origins of the additional peak. Using these results, we explain the connection between our system, a three-level system in V-configuration where both transitions are laser driven, and a related experiment which was recently reported.
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"abstract": "We describe the resonance fluorescence spectrum of an atomic three-level\nsystem where two of the states are coupled by a single monochromatic laser\nfield. The influence of the third energy level, which interacts with the two\nlaser-coupled states only via radiative decays, is studied in detail. For a\nsuitable choice of parameters, this system gives rise to a very narrow\nstructure at the laser frequency in the fluorescence spectrum which is not\npresent in the spectrum of a two-level atom. We find those parameter ranges by\na numerical analysis and use the results to derive analytical expressions for\nthe additional narrow peak. We also derive an exact expression for the peak\nintensity under the assumption that a random telegraph model is applicable to\nthe system. This model and a simple spring model are then used to describe the\nphysical origins of the additional peak. Using these results, we explain the\nconnection between our system, a three-level system in V-configuration where\nboth transitions are laser driven, and a related experiment which was recently\nreported.",
"arxiv_id": "quant-ph/0109117",
"authors": [
"Joerg Evers",
"Christoph H. Keitel"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.65.033813",
"journal_ref": "J. Evers and C. H. Keitel, Phys. Rev. A 65, 033813 (2002)",
"title": "Narrow Spectral Feature In Resonance Fluorescence With A Single Monochromatic Laser Field",
"url": "https://arxiv.org/abs/quant-ph/0109117"
},
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