title: Thermal hyperbolic metamaterials.
abstract: We explore the near-field radiative thermal energy transfer properties of hyperbolic metamaterials. The presence of unique electromagnetic states in a broad bandwidth leads to super-planckian thermal energy transfer between metamaterials separated by a nano-gap. We consider practical phonon-polaritonic metamaterials for thermal engineering in the mid-infrared range and show that the effect exists in spite of the losses, absorption and finite unit cell size. For thermophotovoltaic energy conversion applications requiring energy transfer in the near-infrared range we introduce high temperature hyperbolic metamaterials based on plasmonic materials with a high melting point. Our work paves the way for practical high temperature radiative thermal energy transfer applications of hyperbolic metamaterials.
authors.affiliation: Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada.
authors.forename: Yu
authors.initials: Y
authors.lastname: Guo
authors.forename: Zubin
authors.initials: Z
authors.lastname: Jacob
mesh_terms: D003198:Computer Simulation; D004735:Energy Transfer; D006358:Hot Temperature; D008956:Models, Chemical; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D020349:Surface Plasmon Resonance / Q000379:methods*