Polymer and ormosil materials for optical data storage

New organic materials have played an important role in optical data storage devices. In this paper, the film preparation process, optical and spectroscopic properties, optical storage performances of dye-doped polymer and ormosil materials used as write-once and rewritable optical recording media (photochromic media and others) are reviewed. The existing problems, solutions to these problems and the future development are discussed also.