Laboratoire Charles Coulomb UMR 5221 CNRS/UM2 (L2C)


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- Active control of near-field radiative heat transfer by a graphene-gratings coating-twisting method doi link

Auteur(s): He Ming-jian, Qi Hong, Ren Ya-tao, Zhao Yijun, Antezza M.

(Article) Publié: Optics Letters, vol. 45 p.2914 (2020)
Texte intégral en Openaccess : arxiv

Ref HAL: hal-02583744_v1
DOI: 10.1364/OL.392371
Exporter : BibTex | endNote

In this Letter, active control of near-field radiative heat transfer (NFRHT) between two isotropic materials is realized by a coating-twisting method. The two slabs are coated with graphene gratings, and then the NFRHT can be not only enhanced but also weakened, by tuning the twisted angle between the two gratings. The physical mechanism is attributed to the modes coupled by the graphene gratings and the isotropic material, which can vary with the twisted angle. The proposed method is also applicable for other kinds of anisotropic films and may provide a way to realize high-precision nanoscale thermal management, nimble thermal communications, and thermal switch.