18 April 2016 Conjugate-impedance matched metamaterials for super-Planckian radiative heat transfer
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Abstract
A problem of maximization of the radiative heat transfer (at a given wavelength) between a body and its environment is considered theoretically. It is shown that the spectral density of the radiative heat flux is maximized under the formulated conjugate impedance matching condition, in which case the spectral density of radiated power can exceed the black body limit, resulting in a super-Planckian heat exchange at characteristic distances significantly greater than the wavelength. It is demonstrated that the material parameters of the optimal emitters can be deduced from the known material parameters of the environment and represented by closed-form relations, thus, enabling a way for physical realization of such far-field super-Planckian emitters.
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Stanislav I. Maslovski, Stanislav I. Maslovski, Constantin R. Simovski, Constantin R. Simovski, Sergei A. Tretyakov, Sergei A. Tretyakov, } "Conjugate-impedance matched metamaterials for super-Planckian radiative heat transfer", Proc. SPIE 9883, Metamaterials X, 98830O (18 April 2016); doi: 10.1117/12.2227735; https://doi.org/10.1117/12.2227735
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