Abstract
An analysis is made of the influence of the information carrier nonlinearity on the density of information recorded in a discrete manner in optical memories. It is shown that the use of nonlinear and threshold light-sensitive materials as information carriers can increase the recording density and the signal/noise ratio in the reproduction of the recorded information. It is reported that information can be recorded at a density of 108 bit/cm2 by helium-neon laser radiation in a nonlinear light-sensitive material based on a chalcogenide glass.
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