›› 2014, Vol. 23 ›› Issue (11): 117301-117301.doi: 10.1088/1674-1056/23/11/117301

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

Extraordinary optical transmission through a subwavelength composite hole-pillar array

邵伟佳a b, 李为民a, 许小亮b, 王会杰b, 吴以治b, 郁菁b   

  1. a National Synchrotron Radiation Laboratory and School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China;
    b Department of Physics, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2014-04-21 修回日期:2014-05-21 出版日期:2014-11-15 发布日期:2014-11-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 51272246) and the Scientific and Technological Research Foundation of Anhui Province, China (Grant No. 12010202035).

Extraordinary optical transmission through a subwavelength composite hole-pillar array

Shao Wei-Jia (邵伟佳)a b, Li Wei-Min (李为民)a, Xu Xiao-Liang (许小亮)b, Wang Hui-Jie (王会杰)b, Wu Yi-Zhi (吴以治)b, Yu Jing (郁菁)b   

  1. a National Synchrotron Radiation Laboratory and School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China;
    b Department of Physics, University of Science and Technology of China, Hefei 230026, China
  • Received:2014-04-21 Revised:2014-05-21 Online:2014-11-15 Published:2014-11-15
  • Contact: Li Wei-Min, Xu Xiao-Liang E-mail:lwm@ustc.edu.cn;xlxu@ustc.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51272246) and the Scientific and Technological Research Foundation of Anhui Province, China (Grant No. 12010202035).

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摘要： We numerically investigate the transmission properties of a subwavelength composite hole-pillar array. As the radius of the pillar increases, the transmission properties experience a complex evolution. It is found that the magnetic dipole resonance of the pillar suppresses the surface plasmon polariton resonance (SPPR) at the gold-air interface. There are two strong transmission peaks associated with the magnetic dipole resonance of pillar and SPPR at the gold-silica interface. A peak associated with magnetic quadrupole resonance of the pillar is observed. Moreover, there is a weak peak associated with the coupling between the whispering-gallery plasmon (WGP) mode and magnetic dipole. Our work is helpful for making a dual band optical filter.

关键词: surface plasmon polariton resonance (SPPR), transmission, optical filter

Abstract: We numerically investigate the transmission properties of a subwavelength composite hole-pillar array. As the radius of the pillar increases, the transmission properties experience a complex evolution. It is found that the magnetic dipole resonance of the pillar suppresses the surface plasmon polariton resonance (SPPR) at the gold-air interface. There are two strong transmission peaks associated with the magnetic dipole resonance of pillar and SPPR at the gold-silica interface. A peak associated with magnetic quadrupole resonance of the pillar is observed. Moreover, there is a weak peak associated with the coupling between the whispering-gallery plasmon (WGP) mode and magnetic dipole. Our work is helpful for making a dual band optical filter.

Key words: surface plasmon polariton resonance (SPPR), transmission, optical filter

中图分类号:  (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))

  • 73.20.Mf
42.79.Ci (Filters, zone plates, and polarizers)