Efficient infrared thermal emitters based on low-albedo polaritonic meta-surfaces
A low-albedo all-semiconductor meta-surface with spectrally selective absorption peaks is demonstrated. By engineering the dimensions and shapes of the semiconductor antennas comprising the meta-surface, simultaneous reduction of reflectivity and enhancement of absorption are accomplished by control...
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Veröffentlicht in: | Applied physics letters 2013-05, Vol.102 (21) |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | A low-albedo all-semiconductor meta-surface with spectrally selective absorption peaks is demonstrated. By engineering the dimensions and shapes of the semiconductor antennas comprising the meta-surface, simultaneous reduction of reflectivity and enhancement of absorption are accomplished by controlling their electric and magnetic resonances. Thermal emissivity of the silicon carbide-based meta-surface is experimentally measured and found in agreement with both absorption measurements and theoretical predictions. |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.4808086 |