Extremely wide-angle nonreciprocal thermal emitters based on Weyl semimetals with dielectric grating structure

被引:19
|
作者
Wu, Jun [1 ]
Sun, Yasong [2 ,3 ]
Wu, Biyuan [2 ,3 ,4 ]
Wang, Zhongmin [5 ]
Wu, Xiaohu [4 ]
机构
[1] Anhui Polytech Univ, Coll Elect Engn, Wuhu 241000, Peoples R China
[2] Northwestern Polytech Univ, Basic Res Ctr, Sch Power & Energy, Xian 710064, Shaanxi, Peoples R China
[3] Northwestern Polytech Univ, Yangtze River Delta Res Inst NPU, Ctr Computat Phys & Energy Sci, Taicang 215400, Jiangsu, Peoples R China
[4] Shandong Inst Adv Technol, Jinan 250100, Peoples R China
[5] Qilu Univ Technol, Shandong Acad Sci, Inst Automation, Jinan 250014, Peoples R China
关键词
Nonreciprocal thermal emitters; Weyl semimetal; Guided mode; Wide-angle; NEAR-COMPLETE VIOLATION; COUPLED-WAVE ANALYSIS; KIRCHHOFFS LAW; RADIATION; IMPLEMENTATION;
D O I
10.1016/j.csite.2022.102566
中图分类号
O414.1 [热力学];
学科分类号
摘要
Although various nonreciprocal thermal emitters have been suggested to break the balance be-tween absorption and emission, the majority can only achieve nonreciprocal effect at one certain angle, and the angular range in which these structures exhibit nonreciprocal effect is heavily restricted. In this work, the scheme to realize extremely wide-angle nonreciprocal thermal radi-ation effect is proposed and investigated. It is achieved by placing a dielectric grating atop a Weyl semimetal film backed with a metal mirror. The results show that the emitter exhibits strong nonreciprocal radiation at the wavelength of 15.98 mu m when the incident angle is 30 degrees. What's more, the strong nonreciprocal radiation can be achieved in a wide angular range. Such behavior results from the guided mode resonance, which is revealed by investigating the distribution of electromagnetic field at the resonant wavelength and is also confirmed by the dispersion relation of guided mode. This work provides a new approach to the design of novel nonreciprocal thermal emitters.
引用
收藏
页数:9
相关论文
共 50 条
  • [11] Strong and wide-angle nonreciprocal radiation in modified distributed Bragg reflector-Weyl semimetal heterostructure
    Qian, Liming
    Xu, Sicheng
    Xu, Linhua
    Pei, Shixin
    Zheng, Gaige
    CASE STUDIES IN THERMAL ENGINEERING, 2024, 62
  • [12] Near-perfect nonreciprocal radiation for extremely small incident angle based on cascaded grating structure
    Wu, Jun
    Qing, Ye Ming
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2023, 190
  • [13] Strong nonreciprocal thermal radiation in Weyl semimetal-dielectric multilayer structure
    Wu, Jun
    Wu, Biyuan
    Wang, Zhongmin
    Wu, Xiaohu
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2022, 181
  • [14] A multiscale nonreciprocal thermal radiation multilayer structure based on Weyl semimetal with angle and refractive index detection
    Zhang, Wen-Xiao
    Sui, Jun-Yang
    Zou, Jia-Hao
    Zhang, Hai-Feng
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2025, 160
  • [15] A Wide-Angle Mechanoelectrical Steering Antenna System Based on Multilayer Dielectric Wedge Structure
    Stankovsky, A. V.
    Polenga, S. V.
    Nemshon, A. D.
    Litinskaya, Ye A.
    Alexandrin, A. M.
    Lemberg, K. V.
    Salomatov, Yu P.
    2017 RADIATION AND SCATTERING OF ELECTROMAGNETIC WAVES (RSEMW), 2017, : 45 - 48
  • [16] Graphene-based extremely wide-angle tunable metamaterial absorber
    Linder, Jacob
    Halterman, Klaus
    SCIENTIFIC REPORTS, 2016, 6
  • [17] Graphene-based extremely wide-angle tunable metamaterial absorber
    Jacob Linder
    Klaus Halterman
    Scientific Reports, 6
  • [18] Enhancing nonreciprocal thermal radiation in Weyl semimetals based on optical Tamm states by integrating with photonic crystals
    Wu, Jun
    Sun, Yasong
    Wu, Feng
    Wu, Biyuan
    Wu, Xiaohu
    WAVES IN RANDOM AND COMPLEX MEDIA, 2022,
  • [19] A wide-angle TE-polarization absorber based on a bilayer grating
    Liao, Yan-Lin
    Zhao, Yan
    OPTICAL AND QUANTUM ELECTRONICS, 2015, 47 (08) : 2533 - 2539
  • [20] A wide-angle TE-polarization absorber based on a bilayer grating
    Yan-Lin Liao
    Yan Zhao
    Optical and Quantum Electronics, 2015, 47 : 2533 - 2539