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Metamaterials: A Broadband Negative Index Metamaterial at Optical Frequencies (Advanced Optical Materials 4/2013)
Author(s) -
Atre Ashwin C.,
GarcíaEtxarri Aitzol,
Alaeian Hadiseh,
Dionne Jennifer A.
Publication year - 2013
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201370025
Subject(s) - metamaterial , transformation optics , optics , plasmon , photonic metamaterial , broadband , resonator , negative refraction , materials science , split ring resonator , prism , refractive index , optoelectronics , superlens , slow light , nanoscopic scale , physics , photonic crystal , nanotechnology
A. C. Atre et al. theoretically demonstrate a broadband metamaterial with negative indices across hundreds of nano meters in the visible and NIR spectral regime. On page 327, transformation optics is used to conformally map the negative index mode of an infinite plasmonic waveguide to degenerate electric and magnetic dipoles in a nanoscale plasmonic resonator. A periodic array of such resonators exhibits negative refractive indices at optical frequencies, as illustrated in the image of light passing through a micrometer‐scale metamaterial prism.