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Broadband infrared binary-pattern metasurface absorbers with micro-genetic algorithm optimization
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DOI：10.1364/OL.44.000114.png)
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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. (C) 2018 Optical Society of America
Keyword:
OPTICAL-PROPERTIES
METAMATERIAL
FREQUENCY
DESIGN
FILMS
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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