Broadband Infrared Binary-Pattern Metasurface Absorbers with Micro-Genetic Algorithm Optimization
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.
Z. Li et al., "Broadband Infrared Binary-Pattern Metasurface Absorbers with Micro-Genetic Algorithm Optimization," Optics Letters, vol. 44, no. 1, pp. 114-117, Optical Society of America (OSA), Jan 2019.
The definitive version is available at https://doi.org/10.1364/OL.44.000114
Mechanical and Aerospace Engineering
Intelligent Systems Center
Keywords and Phrases
Genetic algorithms; Plasmonics; Absorption performance; Binary patterns; Metasurface; Micro genetic algorithm; Mid-infrared wavelength ranges; Optical nanostructures; Pixel modification; Plasmonic resonances; Nanostructures
International Standard Serial Number (ISSN)
Article - Journal
© 2019 Optical Society of America (OSA), All rights reserved.
01 Jan 2019