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Effects of Spatial Dispersion in Near-field Radiative Heat Transfer Between Two Parallel Metallic Surfaces by Chapuis, Pierre-Olivier; Volz, Sebastian; Henkel, Carsten; Joulain, Karl; Greffet, Jean-Jacques is a scholarly article available to read on EtoBox.

What is Effects of Spatial Dispersion in Near-field Radiative Heat Transfer Between Two Parallel Metallic Surfaces about?

We study the heat transfer between two parallel metallic semi-infinite media with a gap in the nanometer-scale range. We show that the near-field radiative heat flux saturates at distances smaller than the metal skin depth when using a local dielectric constant and investigate the origin of this effect. The effect of non-local corrections is analysed using the Lindhard-Mermin and Boltzmann-Mermin models. We find that local and non-local models yield the same heat fluxes for gaps larger than 2 nm. Finally, we explain the saturation observed in a recent experiment as a manifestation of the skin depth and show that heat is mainly dissipated by eddy currents in metallic bodies.

Author

Chapuis, Pierre-Olivier; Volz, Sebastian; Henkel, Carsten; Joulain, Karl; Greffet, Jean-Jacques

Published

2008

Language

EN