中国物理B ›› 2014, Vol. 23 ›› Issue (5): 54210-054210.doi: 10.1088/1674-1056/23/5/054210

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

Low-loss terahertz waveguide with InAs-graphene-SiC structure

徐德刚, 王与烨, 于红, 李佳起, 李忠孝, 闫超, 张昊, 刘鹏翔, 钟凯, 王卫鹏, 姚建铨   

  1. College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;Key Laboratory of Opto-electronics Information Technology, Tianjin University, Ministry of Education, Tianjin 300072, China
  • 收稿日期:2013-08-07 修回日期:2013-10-24 出版日期:2014-05-15 发布日期:2014-05-15
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2014CB339802), the National High Technology Research and Development Program of China (Grant No. 2011AA010205)，the National Natural Science Foundation of China (Grant Nos. 61107086 and 61172010), the Natural Science Foundation of Tianjin, China (Grant Nos. 11JCYBJC01100 and 13ZCZDSF02300), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20120032110053), and the THz Science and Technology Foundation of China Academy of Engineering Physics (Grant Nos. CAEPTHZ201201 and CAEPTHZ201304).

Low-loss terahertz waveguide with InAs-graphene-SiC structure

Xu De-Gang (徐德刚), Wang Yu-Ye (王与烨), Yu Hong (于红), Li Jia-Qi (李佳起), Li Zhong-Xiao (李忠孝), Yan Chao (闫超), Zhang Hao (张昊), Liu Peng-Xiang (刘鹏翔), Zhong Kai (钟凯), Wang Wei-Peng (王卫鹏), Yao Jian-Quan (姚建铨)   

  1. College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China;Key Laboratory of Opto-electronics Information Technology, Tianjin University, Ministry of Education, Tianjin 300072, China
  • Received:2013-08-07 Revised:2013-10-24 Online:2014-05-15 Published:2014-05-15
  • Contact: Wang Yu-Ye E-mail:yuyewang@tju.edu.cn
  • About author:42.65.-k; 61.48.Gh; 42.65.Wi
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2014CB339802), the National High Technology Research and Development Program of China (Grant No. 2011AA010205)，the National Natural Science Foundation of China (Grant Nos. 61107086 and 61172010), the Natural Science Foundation of Tianjin, China (Grant Nos. 11JCYBJC01100 and 13ZCZDSF02300), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20120032110053), and the THz Science and Technology Foundation of China Academy of Engineering Physics (Grant Nos. CAEPTHZ201201 and CAEPTHZ201304).

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摘要： We demonstrate a low-loss terahertz waveguide based on the InAs-graphene-SiC structure. By analyzing the terahertz waveguide proposed in this paper, we can obtain that it is the characteristic of a low transmission loss coefficient (αloss ≈ 0.55 dB/m) for fundamental mode (LP01) when the incident frequency is larger than 3.0 THz. The critical radii of the inside and outside cylinders have been found for the high-quality transmission. The large inside radius and the high transmission frequency result in a flat transmission loss coefficient curve. As a strictly two-dimensional material, the double graphene surface rings perform better to improve the quality of transmission mode. These results provide a new idea for the research of the long-distance THz waveguide.

关键词: InAs-graphene-SiC structure, low-loss terahertz waveguide, transmission, critical radii

Abstract: We demonstrate a low-loss terahertz waveguide based on the InAs-graphene-SiC structure. By analyzing the terahertz waveguide proposed in this paper, we can obtain that it is the characteristic of a low transmission loss coefficient (αloss ≈ 0.55 dB/m) for fundamental mode (LP01) when the incident frequency is larger than 3.0 THz. The critical radii of the inside and outside cylinders have been found for the high-quality transmission. The large inside radius and the high transmission frequency result in a flat transmission loss coefficient curve. As a strictly two-dimensional material, the double graphene surface rings perform better to improve the quality of transmission mode. These results provide a new idea for the research of the long-distance THz waveguide.

Key words: InAs-graphene-SiC structure, low-loss terahertz waveguide, transmission, critical radii

中图分类号:  (Nonlinear optics)

  • 42.65.-k
61.48.Gh (Structure of graphene) 42.65.Wi (Nonlinear waveguides)