Request InfoResearch Electro-Optics Inc. (REO)A series of graded-reflectivity mirrors from Research Electro-Optics Inc. enables precise spatial shaping of the intensity and phase characteristics of laser beams. In the mirrors, the reflectivity and/or phase effects of the coating vary radially across the surface of the optic. The company can produce the devices with virtually any arbitrary variation, including nonrotationally symmetric patterns, as well as with complex designs in which the reflectivity increases and decreases repeatedly across the component. They often are used as cavity optics in unstable resonator lasers. 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