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ENZ Conducting Oxide Broadband Perfect Absorbers with Deep Sub-Wavelength Thicknesses

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Abstract

Absorption due to bound and radiative modes in ultrathin epsilon-near-zero (ENZ) conducting oxide multilayers is computed. Multilayers with 11-nm-thin ENZ absorb >95% of light in 1-1.5 μm wavelength range by exciting ENZ bound or leaky modes.

© 2017 Optical Society of America

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