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Mid-Infrared Computational Spectroscopy with an Electrically-Tunable Graphene Metasurface

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Abstract

We demonstrate graphene-plasmonic metasurfaces whose mid-infrared reflection spectra are electrically-tunable. Using measurements of the power reflected by the metasurfaces at different drive voltages, the source spectrum is computationally reconstructed by the recursive least squares method.

© 2019 The Author(s)

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