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Proceedings Paper

Optical attenuation across a metal grid
Author(s): Michael M. Tilleman
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Paper Abstract

Flux of electromagnetic radiation is attenuated on propagation through a metal grid disposed on a substrate. The magnitude of extinction is a combination of the total scattering and surface plasmon absorption, which is predicted by the Mie theory adapted to the case at hand. Experimental measurements over a wide wavelength range conducted using a metal grid on a sapphire window support the calculations. Further analyzed is the electric field generated in the wire mesh, treated by the Drude-Lorentz theory. While the analysis and data show that the attenuation across a window covered by a wire mesh is consists of a combination of the Fresnel and Mie losses, a considerable plasmon field is generated in the wire.

Paper Details

Date Published: 6 March 2012
PDF: 8 pages
Proc. SPIE 8257, Optical Components and Materials IX, 82570N (6 March 2012); doi: 10.1117/12.916670
Show Author Affiliations
Michael M. Tilleman, Elbit Systems of America (United States)

Published in SPIE Proceedings Vol. 8257:
Optical Components and Materials IX
Shibin Jiang; Michel J. F. Digonnet; J. Christopher Dries, Editor(s)

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