title: Tungsten band edge absorber/emitter based on a monolayer of ceramic microspheres.
abstract: We report on a band edge absorber/emitter design for high-temperature applications based on an unstructured tungsten substrate and a monolayer of ceramic microspheres. The absorber was fabricated as a monolayer of ZrO(2) microparticles on a tungsten layer with a HfO(2) nanocoating. The band edge of the absorption is based on critically coupled microsphere resonances. It can be tuned from visible to near-infrared range by varying the diameter of the microparticles. The absorption properties were found to be stable up to 1000°C.
authors.forename: P N
authors.initials: PN
authors.lastname: Dyachenko
authors.forename: J J
authors.initials: JJ
authors.lastname: do Rosário
authors.forename: E W
authors.initials: EW
authors.lastname: Leib
authors.forename: A Yu
authors.initials: AY
authors.lastname: Petrov
authors.forename: M
authors.initials: M
authors.lastname: Störmer
authors.forename: H
authors.initials: H
authors.lastname: Weller
authors.forename: T
authors.initials: T
authors.lastname: Vossmeyer
authors.forename: G A
authors.initials: GA
authors.lastname: Schneider
authors.forename: M
authors.initials: M
authors.lastname: Eich