SUPERLOW-POWER READOUT CHARACTERISTICS OF PHOTOCHROMIC MEMORY

Readout characteristics have been investigated with a superlow-power r eadout method in order to solve the problem of information destruction caused by repeated readout operations in photon-mode photochromic mem ories. For ordinary photochromic diarylethene media, it was possible t o read signals of about 10(5)-10(6) cycles with this method. This meth od was also applied successfully to wavelength multiplexed recording.