dorsal/arxiv
View SchemaDrastic effects of damping mechanisms on the third-order optical nonlinearity
| Authors | Kazuki Koshino, Hajime Ishihara |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0411129 |
| URL | https://arxiv.org/abs/quant-ph/0411129 |
| DOI | 10.1143/JPSJ.74.2921 |
Abstract
We have investigated the optical response of superradiant atoms, which undergoes three different damping mechanisms: radiative dissipation ($\gamma_r$), dephasing ($\gamma_d$), and nonradiative dissipation ($\gamma_n$). Whereas the roles of $\gamma_d$ and $\gamma_n$ are equivalent in the linear susceptibility, the third-order nonlinear susceptibility drastically depends on the ratio of $\gamma_d$ and $\gamma_n$: When $\gamma_d \ll \gamma_n$, the third-order susceptibility is essentially that of a single atom. Contrarily, in the opposite case of $\gamma_d \gg \gamma_n$, the third-order susceptibility suffers the size-enhancement effect and becomes proportional to the system size.
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"abstract": "We have investigated the optical response of superradiant atoms, which\nundergoes three different damping mechanisms: radiative dissipation\n($\\gamma_r$), dephasing ($\\gamma_d$), and nonradiative dissipation\n($\\gamma_n$). Whereas the roles of $\\gamma_d$ and $\\gamma_n$ are equivalent in\nthe linear susceptibility, the third-order nonlinear susceptibility drastically\ndepends on the ratio of $\\gamma_d$ and $\\gamma_n$: When $\\gamma_d \\ll\n\\gamma_n$, the third-order susceptibility is essentially that of a single atom.\nContrarily, in the opposite case of $\\gamma_d \\gg \\gamma_n$, the third-order\nsusceptibility suffers the size-enhancement effect and becomes proportional to\nthe system size.",
"arxiv_id": "quant-ph/0411129",
"authors": [
"Kazuki Koshino",
"Hajime Ishihara"
],
"categories": [
"quant-ph"
],
"doi": "10.1143/JPSJ.74.2921",
"title": "Drastic effects of damping mechanisms on the third-order optical nonlinearity",
"url": "https://arxiv.org/abs/quant-ph/0411129"
},
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