Transparent electrophotographic films for optical data storage applications

The experimental evaluation of a transparent electrophotographic (TEP) film is reported. The objective of the evaluation was to determine the suitability of TEP films for optical data storage applications, especially those using holography. The characteristics of TEP films that motivated the evaluation are good sensitometric and holographic recording responses, relatively high resolution, and a number of attractive applications properties, e.g., long shelf life, good environmental integrity, and exceptional image permanence. In addition, TEP films have an add-on capability. A general description of TEP films is given, and sensitometric and holographic data are summarized for an experimental TEP film.