Near-Field Radiative Heat Transfer in the Dual Nanoscale Regime between Polaritonic Membranes

Lívia Corrêa McCormack; Lei Tang; Mathieu Francoeur

doi:10.1103/j7cj-4tl9

Near-Field Radiative Heat Transfer in the Dual Nanoscale Regime between Polaritonic Membranes

Lívia Corrêa McCormack ¹, Lei Tang², and Mathieu Francoeur ^1,*

¹Department of Mechanical Engineering, The University of Utah, Salt Lake City, Utah 84112, USA
²Department of Mechanical Engineering, University of California at Berkeley, Berkeley, California 94720, USA

^*Contact author: mfrancoeur@mech.utah.edu

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Phys. Rev. Lett. 136, 146303 – Published 10 April, 2026

DOI: https://doi.org/10.1103/j7cj-4tl9

Abstract

The enhancement and attenuation of near-field radiative heat transfer between polaritonic SiC, SiN, and ${SiO}_{2}$ subwavelength membranes is analyzed. Fluctuational electrodynamics simulations combined with a modal analysis show that all membranes support corner and edge modes, which can induce a large 5.1-fold enhancement for SiC and a 2.1-fold attenuation for ${SiO}_{2}$ of the heat transfer coefficient with respect to that between infinite surfaces. The enhancement or attenuation is directly related to material losses, which reduce the density of available electromagnetic states between the membranes.

Physical Review Letters

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Near-Field Radiative Heat Transfer in the Dual Nanoscale Regime between Polaritonic Membranes

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Near-Field Radiative Heat Transfer in the Dual Nanoscale Regime between Polaritonic Membranes

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