›› 2014, Vol. 23 ›› Issue (9): 97301-097301.doi: 10.1088/1674-1056/23/9/097301

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

Band-stop optical nanofilters with split-ring resonators based on metal-insulator-metal structure

张会云a, 申端龙a, 张玉萍a, 杨伟杰b, 袁偲c, 刘蒙a, 尹贻恒a, 吴志心a   

  1. a Qingdao Key Laboratory of Terahertz Technology, College of Electronics, Communication, and Physics, Shandong University of Science and Technology, Qingdao 266590, China;
    b Dongjun Information Technology Co., Ltd., Shanghai 200050, China;
    c College of Precision Instrument and Opto-electronics Engineering, Institute of Laser and Opto-electronics, Tianjin University, Tianjin 300072, China
  • 收稿日期:2013-12-17 修回日期:2014-03-30 出版日期:2014-09-15 发布日期:2014-09-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61001018), the Natural Science Foundation of Shandong Province, China (Grant Nos. ZR2011FM009 and ZR2012FM011), the Research Fund of Shandong University of Science and Technology (SDUST), China (Grant No. 2010KYJQ103), the SDUST Research Fund, China (Grant No. 2012KYTD103), the Shandong Province Higher Educational Science and Technology Program, China (Grant No. J11LG20), and the Qingdao Economic & Technical Development Zone Science & Technology Project, China (Grant No. 2013-1-64).

Band-stop optical nanofilters with split-ring resonators based on metal-insulator-metal structure

Zhang Hui-Yun (张会云)a, Shen Duan-Long (申端龙)a, Zhang Yu-Ping (张玉萍)a, Yang Wei-Jie (杨伟杰)b, Yuan Cai (袁偲)c, Liu Meng (刘蒙)a, Yin Yi-Heng (尹贻恒)a, Wu Zhi-Xin (吴志心)a   

  1. a Qingdao Key Laboratory of Terahertz Technology, College of Electronics, Communication, and Physics, Shandong University of Science and Technology, Qingdao 266590, China;
    b Dongjun Information Technology Co., Ltd., Shanghai 200050, China;
    c College of Precision Instrument and Opto-electronics Engineering, Institute of Laser and Opto-electronics, Tianjin University, Tianjin 300072, China
  • Received:2013-12-17 Revised:2014-03-30 Online:2014-09-15 Published:2014-09-15
  • Contact: Zhang Yu-Ping E-mail:sdust_thz@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61001018), the Natural Science Foundation of Shandong Province, China (Grant Nos. ZR2011FM009 and ZR2012FM011), the Research Fund of Shandong University of Science and Technology (SDUST), China (Grant No. 2010KYJQ103), the SDUST Research Fund, China (Grant No. 2012KYTD103), the Shandong Province Higher Educational Science and Technology Program, China (Grant No. J11LG20), and the Qingdao Economic & Technical Development Zone Science & Technology Project, China (Grant No. 2013-1-64).

摘要: Novel band-stop filters with circular split-ring resonators based on the metal-insulator-metal (MIM) structure are presented, with their transmission properties of SPPs propagating through the filter simulated by the finite-difference time-domain (FDTD) method. The variation of the gap of the split ring can affect the transmission characteristics, i.e., the transmission spectrum of SPPs exhibiting a shift, which is useful for modulating the filter. Linear and nonlinear media are used in the resonator respectively. By varying the refractive index of the linear medium, the transmission properties can be changed obviously, and the effect caused by changing the incident intensity with a nonlinear medium is similar. Several resonant modes that are applicable can be enhanced by changing the position of the gap of the split ring. Thus, the transmission properties can be modulated by adjusting the size of the gap, varying the refractive index, and changing the incident intensity of the input light. These methods may play significant roles in applications of optical integrated circuits and nanostructural devices.

关键词: surface plasmons, nano filter, split-ring resonator, transmission property

Abstract: Novel band-stop filters with circular split-ring resonators based on the metal-insulator-metal (MIM) structure are presented, with their transmission properties of SPPs propagating through the filter simulated by the finite-difference time-domain (FDTD) method. The variation of the gap of the split ring can affect the transmission characteristics, i.e., the transmission spectrum of SPPs exhibiting a shift, which is useful for modulating the filter. Linear and nonlinear media are used in the resonator respectively. By varying the refractive index of the linear medium, the transmission properties can be changed obviously, and the effect caused by changing the incident intensity with a nonlinear medium is similar. Several resonant modes that are applicable can be enhanced by changing the position of the gap of the split ring. Thus, the transmission properties can be modulated by adjusting the size of the gap, varying the refractive index, and changing the incident intensity of the input light. These methods may play significant roles in applications of optical integrated circuits and nanostructural devices.

Key words: surface plasmons, nano filter, split-ring resonator, transmission property

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

  • 73.20.Mf
78.20.Bh (Theory, models, and numerical simulation) 43.58.Kr (Spectrum and frequency analyzers and filters; acoustical and electrical oscillographs; photoacoustic spectrometers; acoustical delay lines and resonators)