Jain, Kritika and Venkatapathi, Murugesan (2022) Radiative decay of an emitter due to non-Markovian interactions with dissipating matter. In: Journal of Physics: Condensed Matter, 34 (26). ISSN 0953-8984
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Abstract
It is known that the more tractable Markovian models of coupling suited for weak interactions may overestimate the Rabi frequency notably when applied to the strong-coupling regime. Here, a more significant consequence of the non-Markovian interaction between a photon emitter and dissipating matter such as resonant plasmonic nanoparticles is described. A large increase of radiative decay and a diminished non-radiative loss is shown, which unravels the origin of unexpected large enhancements of surface-enhanced-Raman-spectroscopy, as well as the anomalous enhancements of emission due to extremely small fully absorbing metal nanoparticles less than 10 nm in dimensions. We construct the mixture of pure states of the coupled emitter-nanoparticle system, unlike conventional methods that rely on the orthogonal modes of the nanoparticle alone.
| Item Type: | Journal Article |
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| Publication: | Journal of Physics: Condensed Matter |
| Publisher: | IOP Publishing Ltd |
| Additional Information: | The copyright of this article belongs to the Authors. |
| Keywords: | dissipating matter; non-Markovian; spontaneous emission; strong coupling |
| Department/Centre: | Division of Interdisciplinary Sciences > Computational and Data Sciences |
| Date Deposited: | 23 May 2022 05:21 |
| Last Modified: | 20 Jun 2022 11:24 |
| URI: | https://eprints.iisc.ac.in/id/eprint/72334 |
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