RADIATION-TRANSMISSIVE FILMS ON GLASS ARTICLES

摘要

A glass article comprising a glass substrate and a diamond-like film deposit ed on the substrate is disclosed. The glass article is responsive to actinic radiation, such as being capable of demonstrating a change in refractive ind ex upon exposure to actinic radiation. The film permits passage of the actinic radiation through the film and into the substrate. In specific implementations, the film comprises at least about 30 atomic percent carbon, from about 0 to about 50 atomic percent silicon, and from about 0 to about 5 0 atomic percent oxygen on a hydrogen-free basis. Furthermore, a method of depositing a diamond-like film onto a glass substrate is disclosed, as well as fiber optic gratings.