Spectral-hole filter fabricated using sculptured thin-film technology

Ian J. Hodgkinson, Qi Hong Wu, Akhlesh Lakhtakia, Martin W. McCall

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


A Fabry-Perot description of the three-layer spectral-hole filter (SHF) fabricated using sculptured thin-film technology is presented. The identical outer layers are made of a thin-film helicoidal bianisotropic medium, and individually act as Bragg reflectors of one circular polarization. The middle layer, made of a homogeneous, isotropic, dielectric medium, functions as a quarter-wave spacer layer at the center-wavelength of the Bragg regime. The measured transmittance spectrums of the fabricated SHF are evaluated relative to exact theoretical results.

Original languageEnglish (US)
Pages (from-to)79-84
Number of pages6
JournalOptics Communications
Issue number1
StatePublished - Apr 15 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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