Wide-angle perfect absorber/thermal emitter in the terahertz regime

TitleWide-angle perfect absorber/thermal emitter in the terahertz regime
Publication TypeJournal Article
Year of Publication2009
AuthorsDiem M, Koschny T, Soukoulis CM
Journal TitlePhysical Review B
Volume79
Pages033101
Date Published01/01
ISBN Number1098-0121
Accession NumberISI:000262978200001
Keywordsgeneration, heat radiation, light absorption, microcavities, modes, nanostructured materials, optical-properties, thermal-radiation
Abstract

We show that a perfect absorber/thermal emitter exhibiting an absorption peak of 99.9% can be achieved in metallic nanostructures that can be easily fabricated. The very high absorption is maintained for large angles with a minimal shift in the center frequency and can be tuned throughout the visible and near-infrared regime by scaling the nanostructure dimensions. The stability of the spectral features at high temperatures is tested by simulations using a range of material parameters.

URL<Go to ISI>://000262978200001
DOI10.1103/Physrevb.79.033101