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Proceedings Paper

Stress and compensation of stress in nanoengineered optical coatings
Author(s): Ian J. Hodgkinson; Qihong Wu; Karen E. Thorn
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Paper Abstract

We consider anisotropic stress in substrates coated with vacuum- deposited optically-anisotrpic thin films. Birefringent films with tilted-columnar and normal-columnar nanostructures and thin film helocoidal bianisotropic mediums are considered. In the case of tilted- columnar nanostructures, the sign and relative magnitude of the stresses parallel to the deposition plane and perpendicular to the deposition plane depend on deposition angle. We show that an ion-assisted overcoat, applied with the primary purpose of protecting optical properties, can be designed to provide effective compensation of stress.

Paper Details

Date Published: 30 June 2000
PDF: 8 pages
Proc. SPIE 4097, Complex Mediums, (30 June 2000); doi: 10.1117/12.390593
Show Author Affiliations
Ian J. Hodgkinson, Univ. of Otago (New Zealand)
Qihong Wu, Univ. of Otago (New Zealand)
Karen E. Thorn, Univ. of Otago (United States)

Published in SPIE Proceedings Vol. 4097:
Complex Mediums
Akhlesh Lakhtakia; Werner S. Weiglhofer; Russell F. Messier, Editor(s)

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