Request InfoEdmund Optics Inc.Edmund Optics has introduced superpolished mirror substrates ready to be coated for use in a wide variety of demanding laser applications. They are available in 1- and 2-Å surface roughness options, and in fused silica and zerodur. They feature low scatter — a requirement for any application that uses ultrafast lasers — and surface accuracy of λ/10. When they are manufactured, the superpolishing is applied to the first surface of the substrate, and a commercial polishing is applied to the second surface. 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