Chlorine barium borate, chlorine barium borate nonlinear optical crystal, and preparation method and uses of chlorine barium borate nonlinear optical crystal

A nonlinear optics, barium chloroborate technology, applied in nonlinear optics, chemical instruments and methods, optics, etc., can solve the problems of high price, long growth period, serious layered growth habit, etc.

Active Publication Date: 2015-05-27
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the crystal growth technology of these materials has become increasingly mature, there are still obvious shortcomings: such as crystal deliquescence, long growth cycle, serious layered growth habit and expensive price, etc.

Method used

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  • Chlorine barium borate, chlorine barium borate nonlinear optical crystal, and preparation method and uses of chlorine barium borate nonlinear optical crystal
  • Chlorine barium borate, chlorine barium borate nonlinear optical crystal, and preparation method and uses of chlorine barium borate nonlinear optical crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] According to the reaction formula: 13BaCO 3 +BaCl 2 +6H 3 BO 3 →2Ba 7 B 3 o 11 Cl+13CO 2 ↑+9H 2 O ↑ Synthesis of Ba 7 B 3 o 11 Cl compounds:

[0040] BaCO 3 , BaCl 2 、H 3 BO 3 Weigh it into a mortar with a molar ratio of 9:1:6, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, put it into a muffle furnace, slowly raise the temperature to 650°C, and keep the temperature constant for 24 hours. Cool to room temperature, take it out and put it into the muffle furnace after the second grinding, then raise the temperature to 750°C, keep the temperature for 24 hours, cool to room temperature, take it out and put it into the muffle furnace after the third grinding, and then raise the temperature to 900°C ℃, constant temperature for 48 hours, take out the single-phase polycrystalline powder of barium chloroborate compound obtained by grinding, and carry out X-ray analysis on the product, the obtained X-ray spectrum i...

Embodiment 2

[0047] According to the reaction formula: 13Ba(NO 3 ) 2 +BaCl 2 +6H 3 BO 3 →2Ba 7 B 3 o 11 Cl+26NO 2 ↑+6.5O 2 +9H 2 O ↑ Synthesis of Ba 7 B 3 o 11 Cl compounds:

[0048] Ba(NO 3 ) 2 , BaCl 2 、H 3 BO 3 Weigh the raw materials directly according to the molar ratio of 9:1:6, and combine the weighed raw materials with the flux Na 2 O-H 3 BO 3 Mixed at a molar ratio of 1:4, where Na 2 O and H 3 BO 3 The molar ratio is 2:5, put it into an open platinum crucible of Φ80mm×80mm, heat up to a temperature of 850°C, and keep the temperature at a constant temperature for 60 hours to obtain a mixed melt, which is then cooled to a temperature of 815°C;

[0049] Preparation of barium chloroborate seed crystals: Slowly cool the obtained mixed melt to room temperature at a rate of 1.5°C / h, and spontaneously crystallize to obtain barium chloroborate seed crystals;

[0050] Ba will be obtained 7 B 3 o 11 The Cl seed crystal is fixed on the seed rod, and the seed crystal...

Embodiment 3

[0054] According to the reaction formula: 13BaO+BaCl 2 +6H 3 BO 3 →2Ba 7 B 3 o 11 Cl+9H 2 O ↑ Synthesis of Ba 7 B 3 o 11 Cl compounds:

[0055] BaO, BaCl 2 、H 3 BO 3 Put it into a mortar with a molar ratio of 9:1:6, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, press it tightly, put it in a muffle furnace, and slowly raise the temperature to 550°C, keep the temperature constant After 24 hours, take out the crucible after cooling. At this time, the sample is relatively loose. Then take out the sample and grind it evenly, then put it in the crucible, keep the temperature in the muffle furnace at 900°C for another 48 hours, take it out, and put it in the mortar Ba 7 B 3 o 11 Cl compound, carry out X-ray analysis to this product, gained X-ray spectrogram and barium chloroborate Ba 7 B 3 o 11 The X-ray spectra obtained by Cl single crystal structure are consistent;

[0056] The synthesized Ba 7 B 3 o 11 The m...

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Abstract

The present invention relates to a compound chlorine barium borate, a chlorine barium borate nonlinear optical crystal, and a preparation method and uses of the chlorine barium borate nonlinear optical crystal. According to the present invention, the chemical formula of the compound is Ba7B3O11Cl, the molecular weight is 1205.26, and the compound is synthesized by adopting a solid phase reaction method; the chemical formula of the chlorine barium borate nonlinear optical crystal is Ba7B3O11Cl, the molecular weight is 1205.26, the crystal does not have the symmetry center and belongs to the hexagonal crystal system, the space group is P6[3]mc, and the cell parameters are as the follows: a is 11.2266 (17) angstrom, c is 7.214 (2) angstrom, Z is 2, and V is 787.4 (3) angstrom; the frequency doubling effect of the crystal powder achieves the 0.5 time of the KDP (KH2PO4); and the crystal has characteristics of large mechanical hardness, easy cutting, easy polish processing and easy preservation, and is widely applied in preparation of frequency doubling generators, frequency up-convertors, frequency down-convertors, or optical parameter oscillators and other nonlinear optical devices.

Description

technical field [0001] The present invention relates to compound barium chloroborate Ba 7 B 3 o 11 Cl and barium chloroborate nonlinear optical crystal, preparation method and nonlinear optical device made by using the crystal. Background technique [0002] Ultraviolet nonlinear optical materials are the key materials for solid-state lasers to generate ultraviolet coherent light. In order to obtain nonlinear optical materials with nonlinear optical properties, the current international method is to introduce nonlinear optical functions that are easy to cause distortion in the structure. Primitives, these primitives mainly contain d 0 , d 10 Electronic structure of transition metal cation polyhedra or metal cation polyhedra containing lone electron pairs. However, these structural motifs often redshift the UV cut-off edge of the material, making it unsuitable for use in the UV region. The characteristic of borate is that it is conducive to the transmission of ultraviole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/10C30B9/12
CPCC30B9/12C30B29/10G02F1/3551
Inventor 潘世烈李弘毅鹿毅俞洪伟吴红萍
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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