Experimental investigation of parallel optical data storage using pyrrylfulgide photochromic materia

The optical storage characteristics of a new kind of organic photochromic material--pyrrylfulgide were experimentally investigated in the established parallel optical data storage system. Using the pyrrylfulgide/PMMA film as a photon-mode recording medium, micro-images and encoded binary digital data were recorded, readout and erased in this parallel system. The storage density currently reaches 3×107 bit/cm2. The recorded information on the film can be kept for years in darkness at room temperature.