dorsal/arxiv
View SchemaLocal-field corrections to the decay rate of excited molecules in absorbing cavities: the Onsager model
| Authors | Marin Slobodan Tomas |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0009057 |
| URL | https://arxiv.org/abs/quant-ph/0009057 |
| Journal | Phys. Rev. A 63, 053811 (2001) |
Abstract
The decay rate and the classical radiation power of an excited molecule (atom) located in the center of a dispersive and absorbing dielectric sphere taken as a simple model of a cavity are calculated adopting the Onsager model for the local field. The local-field correction factor to the external (radiation and absorption) power loss of the molecule is found to be $|3\epsilon(\omega)/[3\epsilon(\omega)+1]|^2$, with $\epsilon(\omega)$ being the dielectric function of the sphere. However, local-field corrections to the total decay rate (power loss) of the molecule are found to be much more complex, including those to the decay rate in the infinite cavity medium, as derived very recently by Scheel et al. [Rev. A 60, 4094 (1999)], and similiar corrections to the cavity-induced decay rate. The results obtained can be cast into model-independent forms. This suggests the general results for the local-field corrections to the decay rate and to the external power loss of a molecule in an absorbing cavity valid for molecule positions away from the cavity walls.
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"abstract": "The decay rate and the classical radiation power of an excited molecule\n(atom) located in the center of a dispersive and absorbing dielectric sphere\ntaken as a simple model of a cavity are calculated adopting the Onsager model\nfor the local field. The local-field correction factor to the external\n(radiation and absorption) power loss of the molecule is found to be\n$|3\\epsilon(\\omega)/[3\\epsilon(\\omega)+1]|^2$, with $\\epsilon(\\omega)$ being\nthe dielectric function of the sphere. However, local-field corrections to the\ntotal decay rate (power loss) of the molecule are found to be much more\ncomplex, including those to the decay rate in the infinite cavity medium, as\nderived very recently by Scheel et al. [Rev. A 60, 4094 (1999)], and similiar\ncorrections to the cavity-induced decay rate. The results obtained can be cast\ninto model-independent forms. This suggests the general results for the\nlocal-field corrections to the decay rate and to the external power loss of a\nmolecule in an absorbing cavity valid for molecule positions away from the\ncavity walls.",
"arxiv_id": "quant-ph/0009057",
"authors": [
"Marin Slobodan Tomas"
],
"categories": [
"quant-ph"
],
"journal_ref": "Phys. Rev. A 63, 053811 (2001)",
"title": "Local-field corrections to the decay rate of excited molecules in absorbing cavities: the Onsager model",
"url": "https://arxiv.org/abs/quant-ph/0009057"
},
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