中国物理B ›› 2011, Vol. 20 ›› Issue (9): 94101-094101.doi: 10.1088/1674-1056/20/9/094101

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Independently tunable multichannel terahertz filters

张会云, 高营, 张玉萍, 王世范   

  1. College of Science, Shandong University of Science and Technology, Qingdao 266510, China
  • 收稿日期:2011-03-18 修回日期:2011-04-19 出版日期:2011-09-15 发布日期:2011-09-15

Independently tunable multichannel terahertz filters

Zhang Hui-Yun(张会云), Gao Ying(高营), Zhang Yu-Ping(张玉萍)†, and Wang Shi-Fan(王世范)   

  1. College of Science, Shandong University of Science and Technology, Qingdao 266510, China
  • Received:2011-03-18 Revised:2011-04-19 Online:2011-09-15 Published:2011-09-15

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摘要： We numerically demonstrate terahertz multichannel filters with independently tunable defect modes based on fractal photonic crystals. Single defect and multiple defects models are proposed to fabricate the multichannel terahertz filters. The facts that the wave functions of the defect states do not overlap and their bases are orthogonal lead to the independency among the defect modes. The simulated results theoretically provide the principle for fabricating independently tunable multichannel terahertz filters by utilizing one-dimensional photonic crystals with defects.

Abstract: We numerically demonstrate terahertz multichannel filters with independently tunable defect modes based on fractal photonic crystals. Single defect and multiple defects models are proposed to fabricate the multichannel terahertz filters. The facts that the wave functions of the defect states do not overlap and their bases are orthogonal lead to the independency among the defect modes. The simulated results theoretically provide the principle for fabricating independently tunable multichannel terahertz filters by utilizing one-dimensional photonic crystals with defects.

Key words: fractal structure, photonic crystal, terahertz filter, defect

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)) 43.58.Kr (Spectrum and frequency analyzers and filters; acoustical and electrical oscillographs; photoacoustic spectrometers; acoustical delay lines and resonators)