The hybrid concept for realization of an ultra-thin plasmonic metamaterial antireflection coating and plasmonic rainbow

We report on the design, simulation, fabrication, and characterization of a novel two layer anti-reflective coating (ARC) based on a plasmonic metamaterial and a dielectric. Promoted by the strong material dispersion of the plasmonic metamaterial, our novel concept (called hybrid ARC) combines two p...

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Bibliographic Details
Published in:Nanoscale 2014-06, Vol.6 (11), p.637-645
Main Authors: Hedayati, M. Keshavarz, Fahr, S, Etrich, C, Faupel, F, Rockstuhl, C, Elbahri, M
Format: Article
Language:English
Subjects:
Broadband
Coating
Dispersions
Metamaterials
Plasmonics
Rainbows
Reflection
Reflectors
Wavelengths
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Summary:We report on the design, simulation, fabrication, and characterization of a novel two layer anti-reflective coating (ARC) based on a plasmonic metamaterial and a dielectric. Promoted by the strong material dispersion of the plasmonic metamaterial, our novel concept (called hybrid ARC) combines two possible arrangements for layers in an anti-reflection coating into a single structure; albeit at two different wavelengths. This, however, causes a broadband reduction of reflection that is less sensitive against oblique incidence when compared to traditional antireflective coatings. Furthermore, we show that the current metamaterial on a metal reflector can be used for the visualization of different coloration such as plasmonic rainbow despite its sub-wavelength thickness. We develop a plasmonic broadband anti-reflector based on a tunable metamaterial which could potentially act as a plasmonic rainbow.
ISSN:2040-3364
2040-3372
DOI:10.1039/c4nr00087k