This disclosure describes techniques for the design of optical coatings with low color variation in the presence of manufacturing tolerances, and which are robust to color as-built. Sample stacks of optical coatings are generated using a Monte Carlo technique based on initial design specification parameter(s) of an optical coating stack. The initial design parameter(s) are utilized as a starting point for the optical coating stack that meets color and reflectance requirements nominally prior to tolerances. Each sample stack applies an error in the design parameter(s) based on manufacturing (as-built) error distributions. A merit function that is indicative of the optical coating performance is evaluated for each as-built sample. The evaluated merit function is combined (summed) over all as-built samples, which is then minimized using an optimization method to yield an optimal as-built optical coating design specification.
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Cakmakci, Ozan; Haque, Moez; and Nguyen, Thuy, "Technique for Design of Color Robust As-Built Optical Coatings", Technical Disclosure Commons, (July 29, 2021)