Graphene-based amplification and tuning of near-field radiative heat transfer between dissimilar polar materials

Riccardo Messina 1, 2, * Philippe Ben-Abdallah 3, * Brahim Guizal 1, 2, * Mauro Antezza 1, 2, *
* Auteur correspondant
3 Laboratoire Charles Fabry / Naphel
LCF - Laboratoire Charles Fabry
Abstract : The radiative heat transfer between two dielectrics can be strongly enhanced in the near field in the presence of surface phonon-polariton resonances. Nevertheless, the spectral mismatch between the surface modes supported by two dissimilar materials is responsible for a dramatic reduction of the radiative heat flux they exchange. In the present paper we study how the presence of a graphene sheet, deposited on the material supporting the surface wave of lowest frequency, allows us to widely tune the radiative heat transfer, producing an amplification factor going up to one order of magnitude. By analyzing the Landauer energy transmission coefficients we demonstrate that this amplification results from the interplay between the delocalized plasmon supported by graphene and the surface polaritons of the two dielectrics. We finally show that the effect we highlight is robust with respect to the frequency mismatch, paving the way to an active tuning and amplification of near-field radiative heat transfer in different configurations.
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https://hal.archives-ouvertes.fr/hal-01557223
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Soumis le : mercredi 5 juillet 2017 - 21:55:15
Dernière modification le : jeudi 11 janvier 2018 - 06:28:12

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Riccardo Messina, Philippe Ben-Abdallah, Brahim Guizal, Mauro Antezza. Graphene-based amplification and tuning of near-field radiative heat transfer between dissimilar polar materials. Physical Review B : Condensed matter and materials physics, American Physical Society, 2017, 96, pp.045402. 〈10.1103/PhysRevB.96.045402〉. 〈hal-01557223〉

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