9 October 2012 Optical attenuation and plasmon generation on a metal grid
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Electromagnetic radiation is attenuated by a metal grid disposed on a substrate. The magnitude of extinction is a combination of the total scattering and surface plasmon absorption, as predicted by the Mie theory adapted to the case at hand. Experimental measurements conducted over a wide wavelength range using a metal grid on a sapphire window support the calculations. We analyzed the electric field generated in the wire mesh by the Drude-Lorentz theory. While the analysis and data show that the attenuation across a window covered by a wire mesh consists of a combination of the Fresnel and Mie losses, a considerable plasmon field is generated in the wire. Further it is shown that under visible illumination the metal grid generates enough electrical filed to substantially elevate the window temperature.
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Michael M. Tilleman, Michael M. Tilleman, "Optical attenuation and plasmon generation on a metal grid", Proc. SPIE 8457, Plasmonics: Metallic Nanostructures and Their Optical Properties X, 84572I (9 October 2012); doi: 10.1117/12.930802; https://doi.org/10.1117/12.930802

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