Fairfield Crystal Technology offers a range of crystal materials for the optical and semiconductor industries. It serves the solid-state lighting, microlithography, laser, spectroscopy, semiconductor and defense industries. The company develops, characterizes, tests and manufactures crystals. Its products include calcium fluoride, magnesium fluoride, barium fluoride, high-purity deposition materials, optical components and semiconductor crystals. Fairfield Crystal Technology manufactures crystals that are used in optical windows, lenses and prisms, as well as operates in the infrared and ultravilot spectrums. It provides precision polishing, component manufacturing, optics handling and cleaning, technical support, material handling, cleaning, packaging and storage. The company operates a research and development department that develops crystal growth technology for zinc selenide-based devices that are used in radiation detectors and nuclear imaging. Fairfield Crystal Technology maintains a location in New Milford, Conn.