Tensile stresses in hafnia/silica coatings used in vacuum are mitigated by alumina in the multilayer design. Inclusion of interfacial effects and the influence of different layer thicknesses allows the production of low-compressive-stress, high laser-damage-threshold coatings.
© 2010 The Optical Society
J. B. Oliver, P. Kupinski, A. L. Rigatti, A. W. Schmid, J. C. Lambropoulos, S. Papernov, A. Kozlov, and R. D. Hand, "Stress Compensation in Hafnia/Silica Optical Coatings by Inclusion of Alumina Layers," in Optical Interference Coatings, OSA Technical Digest (Optical Society of America, 2010), paper WD5.
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