Spectral holes in Bragg reflection from chiral sculptured thin films: Circular polarization filters

Akhlesh Lakhtakia, Vijayakumar C. Venugopal, Martin W. McCall

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

Chiral sculptured thin films (STFs) display the circular Bragg phenomenon, whereby their planewave transmittance spectrums exhibit narrow-bandstop characteristics in several wavelength regimes. The insertion of a homogeneous, anisotropic, thin layer between two layers of the same chiral STF is shown to result in the exhibition of ultranarrow-bandpass characteristics, which can be tuned by rotating the three-layer structure.

Original languageEnglish (US)
Pages (from-to)57-68
Number of pages12
JournalOptics Communications
Volume177
Issue number1
DOIs
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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