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arXiv · 1201.1460

A wide-band perfect light absorber at mid-wave infrared using multiplexed metal structures

Joshua Hendrickson·Junpeng Guo·Boyang Zhang·Walter Buchwald·Richard Soref
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Abstract

We experimentally demonstrate a wide band near perfect light absorber in the mid-wave infrared region using multiplexed plasmonic metal structures. The wide band near perfect light absorber is made of two different size gold metal squares multiplexed on a thin dielectric spacing layer on the top of a thick metal layer in each unit cell. We also fabricate regular non-multiplexed structure perfect light absorbers. The multiplexed structure IR absorber absorbs above 98% incident light over a much wider spectral band than the regular non-multiplexed structure perfect light absorbers in the mid-wave IR region.

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Joshua Hendrickson, Junpeng Guo, Boyang Zhang, Walter Buchwald, Richard Soref. 2012-01-06. A wide-band perfect light absorber at mid-wave infrared using multiplexed metal structures. https://doi.org/10.1364/ol.37.000371

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