title: Refractory plasmonics with titanium nitride: broadband metamaterial absorber.
abstract: 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.
authors.affiliation: School of Electrical & Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA; State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Urcan
authors.initials: U
authors.lastname: Guler
authors.forename: Nathaniel
authors.initials: N
authors.lastname: Kinsey
authors.forename: Gururaj V
authors.initials: GV
authors.lastname: Naik
authors.forename: Alexandra
authors.initials: A
authors.lastname: Boltasseva
authors.forename: Jianguo
authors.initials: J
authors.lastname: Guan
authors.forename: Vladimir M
authors.initials: VM
authors.lastname: Shalaev
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Kildishev
keywords: high temperature; nanostructures; perfect absorbers; plasmonic metamaterials; solar thermophotovoltaics