Hyperbolic waveguide for long-distance transport of near-field heat flux

Riccardo Messina (1, 2) , Philippe Ben-Abdallah (3) , Brahim Guizal (1, 2) , Mauro Antezza (1, 2) , Svend-Age Biehs (4)

1 L2C - Laboratoire Charles Coulomb
2 Théorie du rayonnement matière et phénomènes quantiques
3 Laboratoire Charles Fabry / Naphel
4 OFFIS - Carl Von Ossietzky Universität Oldenburg = Carl von Ossietzky University of Oldenburg

Heat flux exchanged between two hot bodies at subwavelength separation distances can exceed the limit predicted by the blackbody theory. However, this super-Planckian transfer is restricted to these separation distances. Here we demonstrate the possible existence of a super-Planckian transfer at arbitrary large separation distances if the interacting bodies are connected in the near field with weakly dissipating hyperbolic waveguides. This result opens the way to long-distance transport of near-field thermal energy.

Domaines: Physique Quantique [quant-ph]; Science des matériaux [cond-mat.mtrl-sci]; Optique [physics.optics]

Riccardo Messina, Philippe Ben-Abdallah, Brahim Guizal, Mauro Antezza, Svend-Age Biehs. Hyperbolic waveguide for long-distance transport of near-field heat flux. Physical Review B, 2016, 94, pp.104301. ⟨10.1103/PhysRevB.94.104301⟩. ⟨hal-01359633⟩