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Optimization of radiative heat transfer in hyperbolic metamaterials for thermophotovoltaic applications

Simovsky, C.R. ; Maslovski , S. ; Nefedov, I.S. ; Tretyakov, A.

Optics Express Vol. 21, Nº 12, pp. 14988 - 15013, June, 2013.

ISSN (print): 1094-4087
ISSN (online):

Journal Impact Factor: 3,488 (in 2014)

Digital Object Identifier: 10.1364/OE.21.014988

Abstract
Using our recently developed method we analyze the radiative
heat transfer in micron-thick multilayer stacks of metamaterials with hyper-
bolic dispersion. The metamaterials are especially designed for prospective
thermophotovoltaic systems. We show that the huge transfer of near-infrared
thermal radiation across micron layers of metamaterials is achievable and
can be optimized. We suggest an approach to the optimal design of such
metamaterials taking into account high temperatures of the emitting medium
and the heating of the photovoltaic medium by the low-frequency part of the
radiation spectrum. We show that both huge values and frequency selectivity
are achievable for the radiative heat transfer in hyperbolic multilayer stacks.