Adaptive visible and short-wave infrared camouflage using a dynamically tunable metasurface

Date

2021-10-01

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Source Title

Optics Letters

Print ISSN

0146-9592

Electronic ISSN

1539-4794

Publisher

Optica

Volume

46

Issue

19

Pages

4777 - 4780

Language

English

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Abstract

In this Letter, a dynamically tunable metasurface, which is based on antimony trisulfide, is introduced. In this struc ture, first a metal-insulator-metal (MIM) nanocavity is optimized in a way that, upon phase change, the visible response switches from a transmissive colored window into a reflective mirror. Later, an indium tin oxide nanoantenna is integrated on the MIM cavity to provide antireflection in the short-wave infrared (SWIR) range for SWIR mode ther mal camouflage. The MIM host acts as a thermally tunable substrate to tune the SWIR response of the design.

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Published Version (Please cite this version)