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Proceedings Paper

Design of periodic structures made of columnar and sculptured thin films
Author(s): Francesco Chiadini; Vincenzo Fiumara; Akhlesh Lakhtakia; Antonio Scaglione
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Paper Abstract

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.

Paper Details

Date Published: 2 August 2004
PDF: 6 pages
Proc. SPIE 5508, Complex Mediums V: Light and Complexity, (2 August 2004); doi: 10.1117/12.562678
Show Author Affiliations
Francesco Chiadini, Univ. of Salerno (Italy)
Vincenzo Fiumara, Univ. of Salerno (Italy)
Akhlesh Lakhtakia, The Pennsylvania State Univ. (United States)
Antonio Scaglione, Univ. of Salerno (Italy)

Published in SPIE Proceedings Vol. 5508:
Complex Mediums V: Light and Complexity
Martin W. McCall; Graeme Dewar, Editor(s)

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