Actively tunable narrowband thermal emission from coupled-mode metasurfaces

Arun Nagpal; Ming Zhou; Ognjen Ilic; Zongfu Yu; Harry A. Atwater

doi:10.1117/12.2594522

3 August 2021 Actively tunable narrowband thermal emission from coupled-mode metasurfaces

Arun Nagpal, Ming Zhou, Ognjen Ilic, Zongfu Yu, Harry A. Atwater

Proceedings Volume 11795, Metamaterials, Metadevices, and Metasystems 2021; 117951W (2021) https://doi.org/10.1117/12.2594522
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Thermal radiation is nominally broadband, incoherent, and isotropic, so controlling the spectral, temporal, and directional characteristics of thermal emission is an important frontier in imaging and chemical fingerprinting. The use of thermal metasurfaces, whose emission properties can be finely tailored, has recently become of great interest. Here we theoretically demonstrate the thermal emission of a metasurface arising from the coupled emission from a plasmonic mode in graphene nanoribbons and the guided mode resonance of a 1D photonic crystal. We also discuss the utility of a computationally cheap approach based on coupled-mode theory to model the device scattering characteristics.

Conference Presentation

Citation Download Citation

Arun Nagpal, Ming Zhou, Ognjen Ilic, Zongfu Yu, and Harry A. Atwater "Actively tunable narrowband thermal emission from coupled-mode metasurfaces", Proc. SPIE 11795, Metamaterials, Metadevices, and Metasystems 2021, 117951W (3 August 2021); https://doi.org/10.1117/12.2594522

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