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DOE OSTI · 1524589

Broadband infrared binary-pattern metasurface absorbers with micro-genetic algorithm optimization

Li, Zhigang·Stan, Liliana·Czaplewski, David A.·Yang, Xiaodong·Gao, Jie
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Abstract

Broadband binary-pattern metasurface absorbers are designed and demonstrated in the mid-infrared wavelength range through the micro-genetic algorithm. The tungsten-based metasurface absorbers with the optimized binary-pattern nanostructures exhibit broadband near-perfect absorption due to the multiple plasmonic resonances supported within the unit cell. Furthermore, the influence of minor pixel modifications in the optimized binary-pattern nanostructures on the absorption performance is investigated in the experiment. This Letter presents a promising approach to design and optimize complex optical nanostructures with the desired properties for metamaterial and metasurface applications.

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Li, Zhigang, Stan, Liliana, Czaplewski, David A., Yang, Xiaodong, Gao, Jie. 2018-12-21. Broadband infrared binary-pattern metasurface absorbers with micro-genetic algorithm optimization. https://doi.org/10.1364/ol.44.000114

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