Crystalline Mirror Solutions merges compound semiconductor materials with precision optics to create semiconductor supermirrors. Using molecular beam epitaxy, the highest-quality single-crystal GaAs/AlGaAs distributed Bragg reflectors are grown. These coatings are then extracted from their native GaAs growth wafers and transferred to bulk optical substrates. Our proprietary direct bonding process enables single-crystal multilayers to be combined with a variety of dissimilar materials and geometries – including substrates with >10 cm ROC to 20 cm diameter. The result is the best mirror possible on the ideal substrate.