Study on the fir bandpass filters consisting of two resonant grids

  • Zhang Guangzhao
  • Hu Jinglu
  • Zhao Jinfu


A series of interference filters composed of two resonant grids, with resonant wavelengths λm <200μm, were constructed, and the dependence of the spectral characteristics on the separation of the two grids was studied experimentally in detail. The multiple-beam interference theory was applied to analyse the experimental results. The theoretical calculations and the experimental results are in good agreement. A method is presented, by which double-grid interference filters can be designed with the computer aid.


Theoretical Calculation Spectral Characteristic Bandpass Filter Interference Filter Resonant Wavelength 
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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • Zhang Guangzhao
    • 1
  • Hu Jinglu
    • 1
  • Zhao Jinfu
    • 1
  1. 1.Electronics DepartmentZhongshan UniversityGuangzhouPeople's Republic of China

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