Radiative thermal switch exploiting hyperbolic surface phonon polaritons

Abstract

We study the radiative heat flux between two nanoparticles in close vicinity to the natural hyperbolic material hBN with its optical axis oriented parallel to the interface. We show that the heat flux between the nanoparticles can be efficiently modulated when rotating the nanoparticles due to the coupling to the highly directional hyperbolic surface modes in hBN. Finally, we discuss the thickness and distance dependence of this effect.

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• Topological near-field heat flow in a honeycomb lattice
• Long-range super-Planckian heat transfer between nanoemitters in a resonant cavity
• Orientation effects on near-field radiative heat transfer between complex-shaped dielectric particles
• Four-terminal graphene-superconductor thermal switch controlled by the superconducting phase difference
• Many-body interaction on near-field radiative heat transfer between two nanoparticles caused by proximate particle ensembles
• Twist-induced near-field radiative thermal regulator assisted by cylindrical surface modes
• Deep sub-wavelength scale focusing of heat flux radiated by magneto-optical nanoemitters in the presence of an external magnetic-field
• Generalized coupled dipole method for thermal far-field radiation
• Engineering Canalized Near-Field Radiative Heat Transfer between Fixed Nanoparticles with Twisted $\alpha$-MoO${}_3$ Trilayers
• Near-field focusing and amplification of tip-substrate radiative heat transfer
• The reverse flow and amplification of heat in a quantum-dot system