7 May 2018 Ultra-broadband plasmonic groove absorbers for visible light optimized by genetic algorithms
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Abstract
Plasmonic groove structures, which are widely known for its absorbent properties of light, are numerically investigated. Genetic algorithms have been successfully used to aid in the design of two-dimensional high efficiency wide-angle plasmonic groove absorbers for visible wavelengths. The novel periodic groove structure exhibits absorption above 90% for ultra-broadband wavelengths ranging from 300 to 700nm. The resonant modes induce localized zero wavevector plasmon polaritons in the metallic material which favors absorption and may also enhance non-linear optical processes.
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Davi Franco Rêgo, Davi Franco Rêgo, I. L. Gomes de Souza, I. L. Gomes de Souza, Vitaly Felix Rodriguez-Esquerre, Vitaly Felix Rodriguez-Esquerre, } "Ultra-broadband plasmonic groove absorbers for visible light optimized by genetic algorithms", Proc. SPIE 10671, Metamaterials XI, 106712F (7 May 2018); doi: 10.1117/12.2306446; https://doi.org/10.1117/12.2306446
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