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arXiv · 0807.1312

Wide-angle infrared absorber based on negative index plasmonic metamaterial

Yoav Avitzour·Yaroslav A. Urzhumov·Gennady Shvets
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Abstract

A metamaterials-based approach to making a wide-angle absorber of infrared radiation is described. The technique is based on an anisotropic Perfectly Impedance Matched Negative Index Material (PIMNIM). It is shown analytically that a sub-wavelength in all three dimensions PIMNIM enables absorption of close to 100% for incidence angles up to $45°$ to the normal. A specific implementation of such frequency-tunable PIMNIM based on plasmonic metamaterials is presented. Applications to infrared imaging and coherent thermal sources are described.

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Yoav Avitzour, Yaroslav A. Urzhumov, Gennady Shvets. 2009-01-13. Wide-angle infrared absorber based on negative index plasmonic metamaterial. https://doi.org/10.1103/physrevb.79.045131

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