Contribution of terahertz waves to near-field radiative heat transfer between graphene-based hyperbolic metamaterials Project supported by the National Natural Science Foundation of China (Grant Nos. 11704175, 11664024, and 61367006). |
(color online) Plots of ratio between STFs of HMM and graphene-covered Si bulk versus frequency for different chemical potentials. The vacuum gap is set to be 150 nm, and the thickness of Si is 50 nm in HMM. |