title: Wideband omnidirectional infrared absorber with a patchwork of plasmonic nanoantennas.
abstract: In this Letter, we demonstrate experimentally that a patchwork of four metal-insulator-metal patches leads to an unpolarized wideband omnidirectional infrared absorption. Our structure absorbs 70% of the incident light on a 2.5 μm bandwidth at 8.5 μm. It paves the way to the design of wideband efficient plasmonic absorbers in the infrared spectrum.
authors.affiliation: ONERA-The French Aerospace Laboratory, Palaiseau, France.
authors.forename: Patrick
authors.initials: P
authors.lastname: Bouchon
authors.forename: Charlie
authors.initials: C
authors.lastname: Koechlin
authors.forename: Fabrice
authors.initials: F
authors.lastname: Pardo
authors.forename: Riad
authors.initials: R
authors.lastname: Haïdar
authors.forename: Jean-Luc
authors.initials: JL
authors.lastname: Pelouard