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Proceedings Paper

Sculptured thin film handed mirrors
Author(s): Ian Hodgkinson; Lakshman De Silva
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Paper Abstract

We show that a chiral film that is not matched to the refractive indices of the surrounding media behaves as a Bragg resonator for elliptically polarized light with a given handedness, ellipticity, and axial alignment. Equations are derived for the polarization parameters, auxiliary angle (chi) and azimuthal angle (alpha), of the polarization ellipse. Thickness modulated chiral films and chiral-birefringent composite media are considered as elliptical Bragg mediums. Experimental results are presented for coatings fabricated with titanium oxide.

Paper Details

Date Published: 24 August 2005
PDF: 12 pages
Proc. SPIE 5924, Complex Mediums VI: Light and Complexity, 59240L (24 August 2005); doi: 10.1117/12.613991
Show Author Affiliations
Ian Hodgkinson, Univ. of Otago (New Zealand)
Lakshman De Silva, Univ. of Otago (New Zealand)


Published in SPIE Proceedings Vol. 5924:
Complex Mediums VI: Light and Complexity
Martin W. McCall; Graeme Dewar; Mikhail A. Noginov, Editor(s)

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