Three-dimensional optical data storage method in photosensitive memory medium

摘要

The photosensitive memory medium is exposed to a focussed radiation of continuous wave laser, continuously emitting in spectral range of 400 to 1200 nm and power exceeding 10 mW, in order to resolve known photochemical reactions in the focus region of the laser radiation by two-photon energizing in the photosensitive medium. The reactions lead to locally limited, permanent or transient changes in absorption and/or fluorescence and/or refraction number changes.