中国物理B ›› 2018, Vol. 27 ›› Issue (9): 94401-094401.doi: 10.1088/1674-1056/27/9/094401

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Contribution of terahertz waves to near-field radiative heat transfer between graphene-based hyperbolic metamaterials

Qi-Mei Zhao(赵启梅), Tong-Biao Wang(王同标), De-Jian Zhang(张德建), Wen-Xing Liu(刘文兴), Tian-Bao Yu(于天宝), Qing-Hua Liao(廖清华), Nian-Hua Liu(刘念华)   

  1. 1 Department of Physics, Nanchang University, Nanchang 330031, China;
    2 Institute for Advanced Study, Nanchang University, Nanchang 330031, China
  • 收稿日期:2018-02-16 修回日期:2018-05-15 出版日期:2018-09-05 发布日期:2018-09-05
  • 通讯作者: Tong-Biao Wang E-mail:tbwang@ncu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11704175, 11664024, and 61367006).

Contribution of terahertz waves to near-field radiative heat transfer between graphene-based hyperbolic metamaterials

Qi-Mei Zhao(赵启梅)1, Tong-Biao Wang(王同标)1, De-Jian Zhang(张德建)1, Wen-Xing Liu(刘文兴)1, Tian-Bao Yu(于天宝)1, Qing-Hua Liao(廖清华)1, Nian-Hua Liu(刘念华)2   

  1. 1 Department of Physics, Nanchang University, Nanchang 330031, China;
    2 Institute for Advanced Study, Nanchang University, Nanchang 330031, China
  • Received:2018-02-16 Revised:2018-05-15 Online:2018-09-05 Published:2018-09-05
  • Contact: Tong-Biao Wang E-mail:tbwang@ncu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11704175, 11664024, and 61367006).

摘要:

Hyperbolic metamaterials alternately stacked by graphene and silicon (Si) are proposed and theoretically studied to investigate the contribution of terahertz (THz) waves to near-field radiative transfer. The results show that the heat transfer coefficient can be enhanced several times in a certain THz frequency range compared with that between graphene-covered Si bulks because of the presence of a continuum of hyperbolic modes. Moreover, the radiative heat transfer can also be enhanced remarkably for the proposed structure even in the whole THz range. The hyperbolic dispersion of the graphene-based hyperbolic metamaterial can be tuned by varying the chemical potential or the thickness of Si, with the tunability of optical conductivity and the chemical potential of graphene fixed. We also demonstrate that the radiative heat transfer can be actively controlled in the THz frequency range.

关键词: radiative heat transfer, graphene, hyperbolic metamaterials

Abstract:

Hyperbolic metamaterials alternately stacked by graphene and silicon (Si) are proposed and theoretically studied to investigate the contribution of terahertz (THz) waves to near-field radiative transfer. The results show that the heat transfer coefficient can be enhanced several times in a certain THz frequency range compared with that between graphene-covered Si bulks because of the presence of a continuum of hyperbolic modes. Moreover, the radiative heat transfer can also be enhanced remarkably for the proposed structure even in the whole THz range. The hyperbolic dispersion of the graphene-based hyperbolic metamaterial can be tuned by varying the chemical potential or the thickness of Si, with the tunability of optical conductivity and the chemical potential of graphene fixed. We also demonstrate that the radiative heat transfer can be actively controlled in the THz frequency range.

Key words: radiative heat transfer, graphene, hyperbolic metamaterials

中图分类号:  (Thermal radiation)

  • 44.40.+a
78.67.Wj (Optical properties of graphene) 81.05.Xj (Metamaterials for chiral, bianisotropic and other complex media)