Near-Field Thermal Radiation Between Mie Resonance-Based Metamaterials

Near-field radiative heat transfer between dielectric-based metamaterials separated by a sub-wavelength vacuum gap is analyzed. Metamaterials made of silicon carbide spherical inclusions within a dielectric host medium of potassium bromide are considered. We show for the first time that surface polariton mediated near-field radiative heat transfer in both TE and TM polarizations may occur between dielectric-based structures. The results presented in this work also demonstrate that it is possible to engineer materials with designer radiative properties, which is crucial in many emerging energy conversion technologies.