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Proceedings Paper

Surface plasmons leaky radiation of the flat metal
Author(s): Ping Wang; Dejiao Hu; Lin Pang
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Paper Abstract

Surface plasmons have been widely investigated in many fields due to the unique property. ATR (attenuated totalreflection) is the common method to excite surface plasmons. We derive the Fano-type analysis to present the reflection spectrum of ATR configuration derived from the three-layer Fresnel reflection equation, which are asymmetric curves resulted from interference between direct reflectance and surface plasmons leaky radiation. In the fitting progress, we obtain the relationship between surface plasmons leaky radiation and metal thickness. When the metal thickness is greater than 25nm, surface plasmons leaky radiation rate is less than 0.07. We also compare the ATR and grating coupler excitement mechanism, which provide a reference to evaluate their application.

Paper Details

Date Published: 28 August 2015
PDF: 6 pages
Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 95472Q (28 August 2015); doi: 10.1117/12.2187302
Show Author Affiliations
Ping Wang, Sichuan Univ. (China)
Dejiao Hu, Sichuan Univ. (China)
Lin Pang, Sichuan Univ. (China)

Published in SPIE Proceedings Vol. 9547:
Plasmonics: Metallic Nanostructures and Their Optical Properties XIII
Allan D. Boardman; Din Ping Tsai, Editor(s)

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