Tunable nanophotonic multilayer structures to control mid-infrared atmospheric windows

Masoumeh Nazari; Yaser M. Banad; Sarah S. Sharif

doi:10.1117/12.3001755

12 March 2024 Tunable nanophotonic multilayer structures to control mid-infrared atmospheric windows

Masoumeh Nazari, Yaser M. Banad, Sarah S. Sharif

Proceedings Volume 12888, 2D Photonic Materials and Devices VII; 1288806 (2024) https://doi.org/10.1117/12.3001755
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

In this paper, we introduce a novel nanophotonic multilayer structure comprising graphene, polymer, and PbSe to modulate electromagnetic waves within mid-IR atmospheric windows. Through finite-difference time-domain analysis and micro-genetic algorithms, we achieve a tunable perfect absorber, with optimized control over absorption and emission in the mid-IR range. By adjusting the graphene's chemical potential from 0 eV to 1 eV, we demonstrate a dynamic shift in peak absorptance from 4 μm to 4.22 μm and maintain high absorption at incident angles up to 52 degrees, marking significant advancements in mid-IR radiation management.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Masoumeh Nazari, Yaser M. Banad, and Sarah S. Sharif "Tunable nanophotonic multilayer structures to control mid-infrared atmospheric windows", Proc. SPIE 12888, 2D Photonic Materials and Devices VII, 1288806 (12 March 2024); https://doi.org/10.1117/12.3001755

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KEYWORDS

Absorption

Mid infrared

Graphene

Windows

Light absorption

Absorption spectrum

Dielectrics

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