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RADIATIVE TRANSFER - V. Proceedings of the Fifth International Symposium on Radiative Transfer
June, 17-22, 2007, Bodrum, Turkey

DOI: 10.1615/ICHMT.2007.RadTransfProc


ISBN Print: 978-1-56700-243-0

ISSN Online: 2642-5629

ISSN Flash Drive: 2642-5661

NEAR-FIELD HEAT TRANSFER: A RADIATIVE INTERPRETATION OF THERMAL CONDUCTION

page 11
DOI: 10.1615/ICHMT.2007.RadTransfProc.260
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RÉSUMÉ

It is shown in this article that the near-field radiative heat transfer can be interpreted as a conduction heat transfer due to the propagation of polaritons. We consider two situations. In the first one, two heated bodies at different temperatures are separated by a gap and in the second one a temperature gradient is imposed to a bulk material. In both situations, the radiative heat transfer is calculated by means of fluctuational electrodynamics. Asymptotic expressions of a thermal conductivity are obtained from the radiative heat transfer calculation. We interpret this conductivity as a consequence of the heat transfer by propagation and collisions of polaritons.

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