PROVIDENCE, R.I., May 25, 2016 — Laser Research Optics has introduced laser-grade zinc selenide (ZnSe) optics that can be fabricated to specification for medical laser OEMs in 0.5- and 0.75-in. sizes, and can be supplied with dual-band and reflectance coatings up to 95 percent on each side. Optimized at 1064 nm for Nd:Yag lasers, the optics include plano-convex and plane-parallel discs, output couplers, and mirrors. They exhibit 1/4 wave at HeNe flatness and surface accuracy at 10.6 μm, with 3 arc-mins. maximum parallelism.