Blackbody theory for hyperbolic materials

The blackbody theory is revisited in the case of thermal electromagnetic fields inside uniaxial anisotropic media in thermal equilibrium with a heat bath. When these media are hyperbolic, we show that the spectral energy density of these fields radically differs from that predicted by Planck's blackbody theory. We demonstrate that the maximum of their spectral energy density is shifted towards frequencies smaller than Wien's frequency making these media apparently colder. Finally, we derive Stefan-Boltzmann's law for hyperbolic media which becomes a quadratic function of the heat bath temperature.

DDC Class

530: Physik

Funding(s)

SFB 986: Teilprojekt C1 - Strukturierte Emitter für effiziente und effektive Thermophotovoltaik

Funding Organisations

Deutsche Forschungsgemeinschaft (DFG)

More Funding Information

S. L., AY. P., and M. E. gratefully acknowledge financial support from the German Research Foundation (DFG) via
SFB 986 “M3”, project C1.

Publication version

publishedVersion

Lizenz

http://rightsstatements.org/vocab/InC/1.0/

Publisher‘s Creditline

To cite this version: Svend-Age Biehs, Slawa Lang, Alexander Yu. Petrov, Manfred Eich, and Philippe Ben-Abdallah. Blackbody Theory for Hyperbolic Materials. Physical Review Letters, American Physical Society, 2019, 115 (17), pp. 174301. 10.1103/PhysRevLett.115.174301 1

Name

PhysRevLett.115.174301.pdf

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302.92 KB

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Blackbody theory for hyperbolic materials