Coupling between conduction and near-field radiative heat transfer in tip-plane geometry

Abstract

We analyze the coupling between conduction and radiative heat transfer in near-field regime between two coaxial cylinders separated by a vacuum gap. By solving the heat transport equation in the steady-state regime between metals or polar materials we highlight a flux saturation mechanism for the radiative transfer even without non-local effect. In the case of polar materials this saturation occurs in the separation distances range of 1 to 10 nm which can be experimentally explored.

5 pages, 4 figures

References in corpus (4)

• Contactless heat flux control with photonic devices
• Smart thermal management with near-field thermal radiation
• Strongly coupled near-field radiative and conductive heat transfer between planar objects
• Strong slowing down of the thermalization process of solids interacting in extreme near-field regime

Cited by in corpus (2)

• Extreme near-field heat transfer between silica surfaces
• Time-dependent radiative heat flux after the beginning of thermal radiation