Design of periodic structures made of columnar and sculptured thin films

Francesco Chiadini, Vincenzo Fiumara, Akhlesh Lakhtakia, Antonio Scaglione

Research output: Contribution to journalConference articlepeer-review


A design paradigm for Bragg multilayers made of columnar thin films (CTFs) is provided approximating both the ordinary and extraordinary refractive indexes of CTFs as Gaussian functions of the vapor incidence angle. Furthermore, we use a quadratic approximation of the same two quantities to design a cascade of chiral sculptured thin films (STFs) with successive pitches forming a geometric series to function as a wideband circular polarization filter.

Original languageEnglish (US)
Article number08
Pages (from-to)41-46
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2004
EventComplex Mediums V: Light and Complexity - Denver, CO, United States
Duration: Aug 4 2004Aug 5 2004

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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