I am looking for a company that can sputter or reactively sputter a dielectric material possible (silicon nitride film) at temp. below a 100 C and with a refractive index of ~2.2 at 820-nm. If you could respond directly to me at gmiller@kvh.com Thanks, Greg Miller KVH Industries 8412 W 185th Street Tinley Park, IL 60477 Ph: 708-444-3837 Fax: 708-444-2801 Email: gmiller@kvh.com