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28 July 1994 Nonlinear absorption in high-reflector multilayers
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Low absorption coatings were examined using a high repetition rate copper vapor laser to study the surface temperature as a function of incident power. Nonlinear absorption was observed in some of the coatings as a result of increased incident power. A variety of commercial coating vendors using common dielectric oxide material combinations were surveyed. Wavelength, coating material, and coating vendor were varied to study their affects on the linearity of the absorption. The films were deposited by electron beam or ion beam sputtering technologies. Changes in the film characteristics were observed after exposure to high incident power. The nature of these changes and their permanency were also examined.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christopher J. Stolz, Timothy G. Sarginson, and John R. Taylor "Nonlinear absorption in high-reflector multilayers", Proc. SPIE 2114, Laser-Induced Damage in Optical Materials: 1993, (28 July 1994);

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