中国物理B ›› 2016, Vol. 25 ›› Issue (7): 78401-078401.doi: 10.1088/1674-1056/25/7/078401

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Excitation of anti-symmetric coupled spoof SPPs in 3D SIS waveguides based on coupling

Li-li Tian(田莉莉), Yang Chen(陈杨), Jian-long Liu(刘建龙), Kai Guo(郭凯), Ke-ya Zhou(周可雅), Yang Gao(高扬), Shu-tian Liu(刘树田)   

  1. 1 Department of Physics, Harbin Institute of Technology, Harbin 150001, China;
    2 School of Electrical Enginnering & Information, Northeast Petroleum University, Daqing 163318, China;
    3 College of Electronic Engineering, Heilongjiang University, Harbin 150080, China
  • 收稿日期:2016-01-22 修回日期:2016-03-07 出版日期:2016-07-05 发布日期:2016-07-05
  • 通讯作者: Shu-tian Liu E-mail:stliu@hit.edu.cn
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2013CBA01702) and the National Natural Science Foundation of China (Grant Nos. 61377016, 61575055, 10974039, 61307072, 61308017, and 61405056).

Excitation of anti-symmetric coupled spoof SPPs in 3D SIS waveguides based on coupling

Li-li Tian(田莉莉)1, Yang Chen(陈杨)2, Jian-long Liu(刘建龙)1, Kai Guo(郭凯)1, Ke-ya Zhou(周可雅)1, Yang Gao(高扬)3, Shu-tian Liu(刘树田)1   

  1. 1 Department of Physics, Harbin Institute of Technology, Harbin 150001, China;
    2 School of Electrical Enginnering & Information, Northeast Petroleum University, Daqing 163318, China;
    3 College of Electronic Engineering, Heilongjiang University, Harbin 150080, China
  • Received:2016-01-22 Revised:2016-03-07 Online:2016-07-05 Published:2016-07-05
  • Contact: Shu-tian Liu E-mail:stliu@hit.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2013CBA01702) and the National Natural Science Foundation of China (Grant Nos. 61377016, 61575055, 10974039, 61307072, 61308017, and 61405056).

摘要: According to the electromagnetic field distributions, there exist two kinds of coupled spoof surface plasmon polaritons (SSPPs), the symmetric and anti-symmetric modes, in the three-dimensional (3D) subwavelength spoof-insulator-spoof (SIS) waveguide. We study the dispersion and excitation of the two kinds of coupled SSPPs supported by the 3D SIS waveguide. The evolution of the dispersion with the thickness and gap width of the waveguide is numerically investigated, and we give a theoretical analysis according to the coupling mechanism. Specially, based on the coupling mechanism, we design a zipper structure, through which the excitation and propagation of the anti-symmetric coupled modes can be realized effectively.

关键词: waveguides, surface plasmons, microwave technology

Abstract: According to the electromagnetic field distributions, there exist two kinds of coupled spoof surface plasmon polaritons (SSPPs), the symmetric and anti-symmetric modes, in the three-dimensional (3D) subwavelength spoof-insulator-spoof (SIS) waveguide. We study the dispersion and excitation of the two kinds of coupled SSPPs supported by the 3D SIS waveguide. The evolution of the dispersion with the thickness and gap width of the waveguide is numerically investigated, and we give a theoretical analysis according to the coupling mechanism. Specially, based on the coupling mechanism, we design a zipper structure, through which the excitation and propagation of the anti-symmetric coupled modes can be realized effectively.

Key words: waveguides, surface plasmons, microwave technology

中图分类号:  (Waveguides, transmission lines, striplines)

  • 84.40.Az
73.40.Rw (Metal-insulator-metal structures) 84.60.Bk (Performance characteristics of energy conversion systems; figure of merit) 75.40.Mg (Numerical simulation studies)