Magnetoplasmon-surface phonon polaritons coupling effects in radiative heat transfer

TL;DR

This paper theoretically explores how magnetoplasmon polaritons couple with surface phonon polaritons in magneto-optical graphene, revealing tunable heat transfer modes and potential for thermal stealth applications.

Contribution

It introduces a theoretical model of MPP and SPhP coupling in graphene under magnetic fields, showing tunable radiative heat transfer control.

Findings

Coupling of MPP and SPhP can be tuned with magnetic fields.

Strong coupling can switch heat transfer from enhancement to attenuation.

Thermal stealth effects are achievable in graphene-based systems.

Abstract

In this letter, based on the quantum Hall regime of magneto-optical graphene, we have theoretically investigated the coupling of magnetoplasmon polaritons (MPP) to surface phonon polaritons (SPhPs) by investigating the radiative heat transfer between two graphene-coated SiO2 slabs. By applying an external magnetic field, the separated branches of intraband and interband MPP can both couple with SPhPs to form tunable modes, which remould the energy transport of the system. The heat transfer mechanism is completely changed from enhancement to attenuation due to the strong coupling, and the thermal stealthy is realized for the graphene. The letter has great significance for the graphene-based magneto-optical devices.