Near-Field Radiative Heat Transfer Between Metasurfaces: A Full-Wave Study Based on 2D Grooved Metal Plates

Abstract

Metamaterials possess artificial bulk and surface electromagnetic states. Tamed dispersion properties of surface waves allow one to achieve controllable super-Planckian radiative heat transfer (RHT) process between two closely spaced objects. We numerically demonstrate enhanced RHT between two 2D grooved metal plates by a full-wave scattering approach. The enhancement originates from both transverse magnetic spoof surface plasmon polaritons and a series of transverse electric bonding- and anti-bonding waveguide modes at surfaces. The RHT spectrum is frequency-selective, and highly geometrically tailorable. Our simulation also reveals thermally excited non-resonant surface waves in constituent materials can play a prevailing role for RHT at an extremely small separation between two plates, rendering metamaterial modes insignificant for the energy transfer process.

References in corpus (4)

• Near-field radiative heat transfer between a sphere and a substrate
• Effects of spatial dispersion in near-field radiative heat transfer between two parallel metallic surfaces
• Radiative bistability and thermal memory
• Heat Transport Through Plasmonic Interactions in Closely Spaced Metallic Nanoparticles Chains

Cited by in corpus (1)

• Radiative heat transfer between metallic gratings using adaptive spatial resolution