METHOD OF PRODUCING NONLINEAR OPTICAL GLASS CERAMIC TEXTURED MATERIAL Russian patent published in 2025 - IPC C03C3/14 C03B32/02 C03C10/02 

FIELD: chemistry.

SUBSTANCE: invention relates to methods for producing transparent glass-ceramic textured optical quality materials having nonlinear properties, specifically to methods for producing glass-ceramic materials with nano-sized crystals LiNbO₃ and LiB₃O₅, which form ordered anisotropic texture in matrix crystallized in alternating electric field glass of Li₂O-Nb₂O₅-B₂O₃ system. This glass-ceramic material can be used to generate the second harmonic of an infrared laser with wavelength of 1.064 mcm. To obtain nonlinear optical glass-ceramic textured material is heated in heat-insulating crystalliser to temperature of 520 °C glass of the composition, mol. %, 29 Li₂O, 63 B₂O₃, 8 Nb₂O5, located in a uniform alternating electric field with frequency of 27 MHz with simultaneous formation of a texture. Field is transmitted normally to a plate of the glass sample through heat-resistant metal electrodes deposited on that plate, and crystallisation is controlled based on the final temperature.

EFFECT: high coefficient of optical nonlinearity of the obtained nonlinear optical glass-ceramic textured material.

1 cl, 1 dwg, 1 tbl, 1 ex