Contact Rainbow Research Optics for Polarizers. They specialize in custom optics , as well as Polarizers. Rainbow Research Optics offer UV Polarizing Cube Beamsplitter, Thin Film Plate Polarizers, Polarizing Cube B/S, High Energy Polarizing Cube Beamsplitter, Broadband Polarizing Cube Beamsplitter and High Energy Broadband Polarizing Cube Beamsplitter. To learn more visit www.rainbowoptics.com today!