dorsal/arxiv
View SchemaThermal radiation and amplified spontaneous emission from a random medium
| Authors | C. W. J. Beenakker |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9806072 |
| URL | https://arxiv.org/abs/quant-ph/9806072 |
| DOI | 10.1103/PhysRevLett.81.1829 |
| Journal | Phys. Rev. Lett. 81, 1829 (1998) |
Abstract
We compute the statistics of thermal emission from systems in which the radiation is scattered chaotically, by relating the photocount distribution to the scattering matrix - whose statistical properties are known from random-matrix theory. We find that the super-Poissonian noise is that of a black body with a reduced number of degrees of freedom. The general theory is applied to a disordered slab and to a chaotic cavity, and is extended to include amplifying as well as absorbing systems. We predict an excess noise of amplified spontaneous emission in a random laser below the laser threshold.
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"abstract": "We compute the statistics of thermal emission from systems in which the\nradiation is scattered chaotically, by relating the photocount distribution to\nthe scattering matrix - whose statistical properties are known from\nrandom-matrix theory. We find that the super-Poissonian noise is that of a\nblack body with a reduced number of degrees of freedom. The general theory is\napplied to a disordered slab and to a chaotic cavity, and is extended to\ninclude amplifying as well as absorbing systems. We predict an excess noise of\namplified spontaneous emission in a random laser below the laser threshold.",
"arxiv_id": "quant-ph/9806072",
"authors": [
"C. W. J. Beenakker"
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"doi": "10.1103/PhysRevLett.81.1829",
"journal_ref": "Phys. Rev. Lett. 81, 1829 (1998)",
"title": "Thermal radiation and amplified spontaneous emission from a random medium",
"url": "https://arxiv.org/abs/quant-ph/9806072"
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