Shear axial modes in a PCTSCM VII. Reflection spectral holes

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Piezoelectric, continuously twisted, structurally chiral materials (PCTSCMs) exhibit the circular Bragg phenomenon in a narrow frequency regime, when irradiated by a normally incident shear wave. The reflectance spectrum of a bilayer comprising two identical PCTSCM layers twisted with respect to each other by 90° is shown here to display a spectral hole, when the layers are relatively thin. As the layers become thicker, the reflection spectral hole vanishes, and a much thinner spectral transmission hole appears.

Original languageEnglish (US)
Pages (from-to)188-190
Number of pages3
JournalSensors and Actuators, A: Physical
Issue number2
StatePublished - Apr 15 2003

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering


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