METHOD FOR OBTAINING NONLINEAR OPTIC MATERIAL Russian patent published in 2023 - IPC C01B35/12 C01D15/00 C01G11/00 C30B1/02 C30B29/22 G02F1/355 

FIELD: production of borates.

SUBSTANCE: invention can be used in electronic engineering and nonlinear optics in creation of materials for elements that convert the frequency of laser radiation in the ultraviolet region of the optical spectrum. To obtain a low-temperature modification of a complex lithium and cadmium borate α-LiCdBO₃:0.05Mn²⁺ by heat treatment, a mixture of Li₂CO₃, H₃BO₃ CdO, MnO at a molar ratio of 1:2:1.90:0.1 is used as starting components. Heat treatment is carried out with a stepwise rise in temperature from 400°C to 650°C for 90 hours, first at 400°C, then at 550°C and 650°C for 10, 40 and 40 hours, respectively.

EFFECT: invention makes it possible to optimize synthesis of a complex lithium and cadmium borate with non-linear optical properties, reducing the duration of heat treatment.

1 cl, 1 dwg, 2 tbl, 1 ex