Stress and compensation of stress in nanoengineered optical coatings

Ian J. Hodgkinson; Qihong Wu; Karen E. Thorn

doi:10.1117/12.390593

30 June 2000 Stress and compensation of stress in nanoengineered optical coatings

Ian J. Hodgkinson, Qihong Wu, Karen E. Thorn

Proceedings Volume 4097, Complex Mediums; (2000) https://doi.org/10.1117/12.390593
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

Ian J. Hodgkinson, Qihong Wu, and Karen E. Thorn "Stress and compensation of stress in nanoengineered optical coatings", Proc. SPIE 4097, Complex Mediums, (30 June 2000); https://doi.org/10.1117/12.390593

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