中国物理B ›› 2014, Vol. 23 ›› Issue (5): 57804-057804.doi: 10.1088/1674-1056/23/5/057804

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Effects of oblique incidence on terahertz responses of planar split-ring resonators

潘学聪, 夏晓翔, 汪力   

  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2013-11-01 修回日期:2013-12-03 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. 2014CB339800) and the National Natural Science Foundation of China (Grant Nos. 11374358 and 61077082).

Effects of oblique incidence on terahertz responses of planar split-ring resonators

Pan Xue-Cong (潘学聪), Xia Xiao-Xiang (夏晓翔), Wang Li (汪力)   

  1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2013-11-01 Revised:2013-12-03 Online:2014-05-15 Published:2014-05-15
  • Contact: Wang Li E-mail:wangli@aphy.iphy.ac.cn
  • About author:78.66.Sq; 78.90.+t
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2014CB339800) and the National Natural Science Foundation of China (Grant Nos. 11374358 and 61077082).

摘要: Effects of oblique incidence of terahertz waves on the response of planar split-ring resonators are investigated, both experimentally and by simulation. It is found that the incident angle dependent phase delay and coupling conditions of neighboring split-ring resonator (SRR) units play important roles and greatly change both the transmission and reflection spectra for the resonant feature of linear charge oscillations. Our results show that the SRR structure-supported magnetoelectric couplings at oblique excitation are trivial and can be ignored. A highly symmetric response is found in the cross-polarization effects, which may manifest the bianisotropic properties of the SRR system but this needs further study.

关键词: terahertz, split-ring resonators, polarization

Abstract: Effects of oblique incidence of terahertz waves on the response of planar split-ring resonators are investigated, both experimentally and by simulation. It is found that the incident angle dependent phase delay and coupling conditions of neighboring split-ring resonator (SRR) units play important roles and greatly change both the transmission and reflection spectra for the resonant feature of linear charge oscillations. Our results show that the SRR structure-supported magnetoelectric couplings at oblique excitation are trivial and can be ignored. A highly symmetric response is found in the cross-polarization effects, which may manifest the bianisotropic properties of the SRR system but this needs further study.

Key words: terahertz, split-ring resonators, polarization

中图分类号:  (Composite materials)

  • 78.66.Sq
78.90.+t (Other topics in optical properties, condensed matter spectroscopy and other interactions of particles and radiation with condensed matter)