Direct observation of quasi-coherent thermal emission by a three-dimensional metallic photonic crystal.

Abstract

We report a direct observation of a quasi-coherent thermal emission from a heated three-dimensional photonic-crystal sample. While the sample was under Joule heating, we observed multiple oscillations in its emission interferogram and deduced a coherent length of L(coh)≅(20-40) μm, 5-10 times longer than that of a blackbody at comparable wavelengths. The… (More)
DOI: 10.1364/OL.38.000911

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@article{Hsieh2013DirectOO, title={Direct observation of quasi-coherent thermal emission by a three-dimensional metallic photonic crystal.}, author={Mei-Li Hsieh and James A Bur and Yong-Sung Kim and Shawn-Yu Lin}, journal={Optics letters}, year={2013}, volume={38 6}, pages={911-3} }