Borosilicate compound CsSiB3O7, method for preparing powder with same and application of borosilicate compound CsSiB3O7

Abstract

The invention discloses a borosilicate compound, a method for preparing powder materials with the same and application of the borosilicate compound. A chemical formula of the borosilicate compound is CsSiB3O7. The method includes uniformly mixing compounds with Cs, compounds with Si and compounds with B according to stoichiometric ratios to obtain mixtures; sintering the mixtures in a resistance furnace at unlimited heating rates and cooling sintered products along with the furnace after the mixtures are completely sintered; sufficiently grinding the sintered products to obtain powder with the borosilicate compound CsSiB3O7. The borosilicate compound, the method and the application have the advantages that excellent nonlinear optical effects can be realized by the borosilicate compound, the borosilicate compound is wide in transmittance range, the absorption cutoff of the borosilicate compound is lower than 200 nm, and powder frequency-doubling effects are identical to powder frequency-doubling effects of KDP (potassium dihydrogen phosphate); the borosilicate compound particularly has high nonlinear coefficients, appropriate double-refraction indexes, wide transmittance wave bands and phase match ranges and high anti-damage thresholds and is good in chemical and mechanical stability; large-size and high-quality single crystals are easy to grow; current application requirements on the performance of nonlinear optical materials can be met, and the borosilicate compound and the method can be applied to preparing nonlinear optical devices.

Description

technical field [0001] The invention provides a novel deep ultraviolet nonlinear optical material, in particular to a nonlinear optical material CsSiB 3 o 7 And its powder preparation method and application. Background technique [0002] Because of its good coherence, pure monochromaticity, good directionality and high brightness, laser is widely used in laser medical treatment, material processing, communication and military fields. However, with the development of social civilization and science and technology, fields such as high-precision measurement, laser medical treatment, laser display and micro-processing have put forward higher requirements for the wavelength coordination range of laser light sources. Although current lasing materials are already capable of producing coherent light output that is tunable within a certain range, the tunable range and its efficiency are considerably limited. From ultraviolet, visible to infrared to terahertz, there are still many ...

AI Technical Summary

Problems solved by technology

Although these materials can basically meet the needs of people's applications, they also have their own shortcomings, such as low light conversion efficiency, deliquescent crystals, layered growth habits, and high prices.

[0004] Therefore, the performance of existing nonlinear optical materials is still lacking, and it is difficult to adapt to the current application requirements of nonlinear optical materials with excellent performance, including: (1) having a large nonlinear coefficient; (2) suitable birefringence (3) wider light transmission band; (4) wider matching range; (5) higher anti-damage threshold; (6) better chemical and mechanical stability; (7) easy to grow large Small size, high quality single crystal

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