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Refractory Plasmonics with Titanium Nitride: Broadband Metamaterial Absorber
Author(s) -
Li Wei,
Guler Urcan,
Kinsey Nathaniel,
Naik Gururaj V.,
Boltasseva Alexandra,
Guan Jianguo,
Shalaev Vladimir M.,
Kildishev Alexander V.
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201401874
Subject(s) - materials science , broadband , plasmon , optoelectronics , absorption (acoustics) , metamaterial , dielectric , titanium nitride , engineering physics , nitride , nanotechnology , telecommunications , computer science , layer (electronics) , composite material , physics
A high‐temperature stable broadband plasmonic absorber is designed, fabricated, and optically characterized. A broadband absorber with an average high absorption of 95% and a total thickness of 240 nm is fabricated, using a refractory plasmonic material, titanium nitride. This absorber integrates both the plasmonic resonances and the dielectric‐like loss. It opens a path for the interesting applications such as solar thermophotovoltaics and optical circuits.