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Thermal Radiation from Photonic Crystals: A Direct Calculation

Narayanaswamy, Arvind; Chen, Gang; Chen, Dye-Zone; Luo, Chiyan; Joannopoulos, J. D.

A classical simulation of equilibrium thermal emissivity from dispersive, lossy photonic crystals is presented. Normal emission results consistent with those assuming Kirchoff's law are obtained; i.e., a photonic crystal does not emit more than what a blackbody does. Significant enhancement, however, can be achieved over the radiation intensity from a uniform slab, indicating the potential usefulness of photonic crystals in incandescent lighting and thermal photovoltaic applications.A classical simulation of equilibrium thermal emissivity from dispersive, lossy photonic crystals is presented. Normal emission results consistent with those assuming Kirchoff's law are obtained; i.e., a photonic crystal does not emit more than what a blackbody does. Significant enhancement, however, can be achieved over the radiation intensity from a uniform slab, indicating the potential usefulness of photonic crystals in incandescent lighting and thermal photovoltaic applications.

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Also Published In

Title
Physical Review Letters
DOI
https://doi.org/10.1103/PhysRevLett.93.213905

More About This Work

Academic Units
Mechanical Engineering
Published Here
April 3, 2013