Simple model for dielectric thin-film helicoidal bianisotropic media

Paul D. Sunal, Akhlesh Lakhtakia, Russell Messier

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


A simple model to predict the effective properties of a porous, dielectric, thin-film helicoidal bianisotropic medium (TFHBM) is presented. A local permittivity dyadic is obtained, assuming that the TFHBM is made of electrically minute needles with a certain shape factor; and thus the TFHBM is locally homogenized into a nonhomogeneous continuum. The determination of the shape factor by comparison with measurements of the optical rotation spectrum is examined in detail, and relationships between structural and other variables are extracted from the predictions of the model. These preliminary results point out the need for more and careful optical experiments on TFHBM slabs to fabricate better theoretical models.

Original languageEnglish (US)
Pages (from-to)119-126
Number of pages8
JournalOptics Communications
Issue number1-6
StatePublished - Dec 15 1998

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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