an apparatus , method , system , and computer - program product for producing magneto - optic materials in the blue and green wavelengths . the apparatus includes a substrate generally transparent to a light signal including a component at a predetermined visible frequency ; a stack of optical multilayers overlying the substrate for transmitting the component with at least about forty percent power therethrough and having at least about twenty - four degrees of faraday rotation per micron for the predetermined visible frequency less than about six hundred nanometers . the method includes processes for the manufacture and assembly of the disclosed materials , with the computer program product including machine - executable instructions for carrying out the disclosed methods .