Читать книгу All sciences. №4, 2023. International Scientific Journal - Ibratjon Xatamovich Aliyev - Страница 6

This paper reviews and discusses photovoltaic, optical (photorefractive) and sound memory in lithium niobate crystals. Coefficients in lithium niobate crystals of the order K = (2-3) × 10—9A ×cm× (W) -1.

Use in holographic recording in LiNbO3: Fe. gives advantages. In this case, the recording is carried out by the photovoltaic effect (FE) corresponding to the photovoltaic current. The generated photon voltage in LiNbO3:Fe crystals of the order (103-105) V/cm is responsible for optical memory.

Lithium niobate is widely used in holography and storage devices due to its excellent ferroelectric and piezoelectric properties. Just as magnetic materials «remember» the magnetic field, LiNbO3 ferroelectric can «remember» the electric field under certain conditions.