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Theoretical model of homogeneous metal-insulator-metal perfect multi-band absorbers for the visible spectrum

TitleTheoretical model of homogeneous metal-insulator-metal perfect multi-band absorbers for the visible spectrum
Publication TypeJournal Article
Year of Publication2016
AuthorsKajtar, G, Kafesaki, M, Economou, EN, Soukoulis, CM
JournalJournal of Physics D-Applied Physics
Volume49
Pagination055104
Date Published02
Type of ArticleArticle
ISBN Number0022-3727
Accession NumberWOS:000368944100013
Keywordsabsorption, lattice, perfect absorbers, photonics, super absorbers, surfaces, Thin films
Abstract

We present a rigorous study of the perfect absorption properties of metal-insulator-metal (MIM) structures in the visible spectrum. We provide a derivation (based on the transfer matrix method) and analysis of the conditions for which the perfect absorption occurs. We show that these conditions are fulfilled when the incident wave excites the eigen-modes of the structure. The quantitative analysis allows us to design specific perfect absorbers for our needs. The analytical model is verified by rigorous simulations based on rigorous coupled wave analysis, which demonstrate also the angle and polarization insensitivity of the absorption properties of such a structure. Employing the MIM approach and results, we also investigate and demonstrate multiple perfect absorption bands and broad-band absorption in properly designed multilayer metal-insulator systems.

DOI10.1088/0022-3727/49/5/055104
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Metamaterials