Epsilon-near-zero thin-film metamaterials for wideband near-perfect light absorption

Evan M. Smith,Jinnan Chen,Joshua R. Hendrickson,Justin W. Cleary,Chandriker Dass,Amber N. Reed,Shivashankar Vangala,Junpeng Guo

OPTICAL MATERIALS EXPRESS（2020）

Cited 14|Views18

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Abstract

Absorptive metamaterials made of epsilon-near-zero indium tin oxide and silicon dioxide films are designed and fabricated for wideband perfect light absorption near the epsilon-near-zero wavelength. By increasing the number of bilayers, we achieve over 90%) absorption in a spectral bandwidth of 0.95 microns. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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Key words

wideband,absorption,epsilon-near-zero,thin-film,near-perfect

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