Effects of spatial dispersion in near-field radiative heat transfer between two parallel metallic surfaces

被引：163

作者：

Chapuis, Pierre-Olivier ^{[1
]}

Volz, Sebastian ^{[1
]}

Henkel, Carsten ^{[2
]}

Joulain, Karl ^{[3
]}

Greffet, Jean-Jacques ^{[1
]}

机构：

[1] Ecole Cent Paris, Lab Energet Mol & Macroscop Combust, CNRS, UPR 288, F-92295 Chatenay Malabry, France

[2] Univ Potsdam, Inst Phys, D-14469 Potsdam, Germany

[3] ENSMA, Lab Etud Therm, F-86961 Futuroscope, France

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.77.035431

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 nonlocal corrections is analyzed using the Lindhard-Mermin and Boltzmann-Mermin models. We find that local and nonlocal 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.

引用

页数：9

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[1] Thermodynamic analysis of thermophotovoltaic efficiency and power density tradeoffs [J].