Abstract
The physical principles underlying the development of three-dimensional nonvolatile optical memory in ferroelectric media are considered. Optical memory is realized in a transparent optical medium whose active components are ferroelectric microparticles. The optical medium is exposed to nondestructive laser radiation, which allows for bit-by-bit writing and reading of information. Writing of information is made inside the the laser caustic by changing the orientation of polarization of ferroelectric particles to the direction of the external electric field under the influence of the laser radiation. Written data can be read by detecting the laser-radiation second harmonic generated in the laser caustic.
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