Browsing by Author "Shenoi, Rajeev"

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Experimental observation of anomalous thermal radiation from a three-dimensional metallic photonic crystal
(2015-06-12)
Hsieh, Mei-Li
;
Lin, Shawn-Yu
;
Bur, James A.
;
Shenoi, Rajeev
;
光電工程學系
We report some striking results on thermal radiation properties of a resonantly coupled cavity photonic crystal (PhC) at elevated temperatures (T = 400-900 K). We experimentally found that at resonant wavelengths, lambda = 1.1, 1.64, 2.85 mu m, the PhC emission is spectrally selective, quasi-coherent, directional, and shows significant deviation from Planck\'s blackbody law at equilibrium. The presence of non-equilibrium effects, driven by strong thermal excitation and cavity resonance, may be the major cause for our experimental observation.