Emission of light through thin silver films via near-field coupling to surface plasmon polaritons

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Emission of light through thin silver films via near-field coupling to surface plasmon polaritons

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Title: Emission of light through thin silver films via near-field coupling to surface plasmon polaritons
Author: Winter, G.
Barnes, William L.
Citation: 88 (5), article 051109
Publisher: American Institute of Physics
Journal: Applied Physics Letters
Date Issued: 2006
URI: http://hdl.handle.net/10036/33275
DOI: 10.1063/1.2170426
Links: http://dx.doi.org/10.1063/1.2170426 http://link.aip.org/link/?APPLAB/88/051109/1
Abstract: We show that the emission of light from a dye layer through an adjacent thin silver film is maximal for a silver thickness of approximately 50 nm. This effect is explained as the result of competition between enhancement of the electric field at the metal surface due to the excitation of a surface plasmon-polariton mode, the amount of power coupled to the surface plasmon-polariton mode, and the attenuation of the field transmitted through the silver, all three of which vary with metal thickness. We indicate how these findings may be of relevance in the design of some surface plasmon-polariton-based fluorescence biosensing schemes.
Type: Article
Description: Copyright © 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 88 (2006) and may be found at http://link.aip.org/link/?APPLAB/88/051109/1
Keywords: silvermetallic thin filmssurface plasmonspolaritonsoptical films
ISSN: 0003-6951


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