Journal
PHYSICAL REVIEW B
Volume 79, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.033101
Keywords
heat radiation; light absorption; nanostructured materials
Funding
- Alexander-von-Humboldt Foundation
- Ames Laboratory was supported by the Department of Energy (asic Energy Sciences) [DE-AC02-07CH11358]
- Office of Naval Research [N001407-1-0359]
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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.
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