Study on the fir bandpass filters consisting of two resonant grids

Zhang Guangzhao*, Hu Jinglu, Zhao Jinfu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)237-243
Number of pages7
JournalInternational Journal of Infrared and Millimeter Waves
Issue number2
Publication statusPublished - 1986 Feb
Externally publishedYes

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Electrical and Electronic Engineering


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