Third method for generation of spectral holes in chiral sculptured thin films

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The introduction of either a central layer defect or a central twist defect in a periodic structurally chiral material generates circular-polarization- sensitive spectral holes in the remittance spectrums for normally incident plane waves. We propose and theoretically establish here the third method to generate such spectral holes using two-section chiral sculptured thin films (STFs). Both sections of the proposed device have the same periodicity and handedness, but their dielectric properties are different and related in a specific way. The concept of pseudoisotropy is highly relevant for the production of the proposed device.

Original languageEnglish (US)
Pages (from-to)105-110
Number of pages6
JournalOptics Communications
Issue number1-3
StatePublished - Jun 1 2005


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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