%0 journal article
%@ 1094-4087
%A Dyachenko, P.N., do Rosario, J.J., Leib, E.W., Petrov, A.Y., Stoermer, M., Weller, H., Vossmeyer, T., Schneider, G.A., Eich, M.

%D 2015
%J Optics express
%N 19
%P A1236-A1244 
%R doi:10.1364/OE.23.0A1236
%T Tungsten band edge absorber/emitter based on a monolayer of ceramic microspheres
%U https://doi.org/10.1364/OE.23.0A1236
19 
%X 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 ZrO2 microparticles on a tungsten layer with a HfO2 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.