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Open AccessCommunication
Int. J. Mol. Sci. 2009, 10(9), 3931-3936; doi:10.3390/ijms10093931

Molecule Non-Radiative Coupling to a Metallic Nanosphere: An Optical Theorem Treatment

Institut Carnot de Bourgogne, UMR 5209 CNRS - Universit´e de Bourgogne, 9 Av. A. Savary, BP 47 870, 21078 Dijon, France
Received: 10 July 2009 / Revised: 1 September 2009 / Accepted: 4 September 2009 / Published: 8 September 2009
(This article belongs to the Special Issue Single Molecules)
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Abstract

The non-radiative coupling of a molecule to a metallic spherical particle is approximated by a sum involving particle quasistatic polarizabilities. We demonstrate that energy transfer from molecule to particle satisfies the optical theorem if size effects corrections are properly introduced into the quasistatic polarizabilities. We hope that this simplified model gives valuable information on the coupling mechanism between molecule and metallic nanostructures available for, e.g., surface enhanced spectroscopy signal analysis.
Keywords: surface enhanced spectroscopy; energy transfer; optical theorem; plasmon modes surface enhanced spectroscopy; energy transfer; optical theorem; plasmon modes
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Des Francs, G.C. Molecule Non-Radiative Coupling to a Metallic Nanosphere: An Optical Theorem Treatment. Int. J. Mol. Sci. 2009, 10, 3931-3936.

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