Open AccessTungsten band edge absorber/emitter based on a monolayer of ceramic microspheres
Author(s) -
P. N. Dyachenko,
Jefferson J. do Rosário,
Elisabeth W. Leib,
Alexander Yu. Petrov,
M. Störmer,
Horst Weller,
Tobias Voßmeyer,
Gerold A. Schneider,
Manfred Eich
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.0a1236
Subject(s) - materials science , tungsten , monolayer , common emitter , ceramic , substrate (aquarium) , absorption (acoustics) , optoelectronics , absorption band , optics , layer (electronics) , enhanced data rates for gsm evolution , nanotechnology , composite material , metallurgy , telecommunications , oceanography , physics , geology , computer science
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.