Compound barium boron oxyfluoride, barium boron oxyfluoride nonlinear optical crystal, and preparation methods and applications thereof

A technology of nonlinear crystals and compounds, which is applied in the fields of compound barium boronoxyfluoride and barium boronoxyfluorine nonlinear optical crystals and their preparation and application, and can solve the problems of high price, long growth period, and deliquescent crystals

Active Publication Date: 2013-05-08
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, scientists from all over the world are still paying close attention to the exploration and research of various new nonlinear optical crystals. Although the crystal growth technology of existing materials has become increasingly mature, there are still obvious shortcomings: such as crystals are prone to deliquescence, growth Long cycle, serious layered growth habit and high price

Method used

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  • Compound barium boron oxyfluoride, barium boron oxyfluoride nonlinear optical crystal, and preparation methods and applications thereof
  • Compound barium boron oxyfluoride, barium boron oxyfluoride nonlinear optical crystal, and preparation methods and applications thereof
  • Compound barium boron oxyfluoride, barium boron oxyfluoride nonlinear optical crystal, and preparation methods and applications thereof

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Experimental program
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Effect test

Embodiment 1

[0046] According to the reaction formula: 9BaO+5BaF 2 +6H 3 BO 3 →2Ba 7 (BO 3 ) 3 f 5 +9H 2 O ↑ Synthesis of Ba 7 (BO 3 ) 3 f 5 compound;

[0047] BaO, BaF 2 、H 3 BO 3 Put it into a mortar with a molar ratio of 9:5:6, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, put it into a muffle furnace, raise the temperature to 400°C, keep the temperature constant for 24 hours, and cool to room temperature , fully ground, then heated up to 600°C, kept at constant temperature for 24 hours, cooled to room temperature, fully ground the sample, then raised to 800°C, kept at constant temperature for 48 hours, fully ground, and then completely sintered barium boron oxyfluoride compound single-phase polycrystalline powder , and then carry out X-ray analysis to the polycrystalline powder, the obtained X-ray spectrum is consistent with potassium chloroborate Ba 7 (BO 3 ) 3 f 5 The X-ray spectra obtained by the single crystal st...

Embodiment 2

[0054] According to the reaction formula: 9BaCO 3 +5BaF 2 +6H 3 BO 3 →2Ba 7 (BO 3 ) 3 f 5 +9CO 2 ↑+9H 2 O ↑ synthetic compound Ba 7 (BO 3 ) 3 f 5 ;

[0055] BaO, BaF 2 、H 3 BO 3 Weigh the raw materials directly according to the molar ratio of 9:5:6, and mix the weighed raw materials with flux H3 BO 3 Mix at a molar ratio of 1:4, put it into an open platinum crucible of Φ80mm×80mm, heat it to 900°C at a heating rate of 30°C / h, keep the temperature for 15 hours to obtain a mixed melt, and then cool it down to 810°C , at this time, quickly extend the seed rod under the liquid surface, slowly lower the temperature to 790°C at a rate of 1°C / h, lift the seed rod out of the liquid surface, and there will be small crystals on the seed rod. The rate of / h is reduced to room temperature, and the barium boron oxyfluoride seed crystal is obtained;

[0056] The barium carbonate in the reaction formula can be replaced by barium oxide or barium nitrate or barium oxalate or ...

Embodiment 3

[0060] According to the reaction formula: 9Ba(OH) 2 +5BaF 2 +6H 3 BO 3 →2Ba 7 (BO 3 ) 3 f 5 +18H 2 O ↑ synthetic compound Ba 7 (BO 3 ) 3 f 5 ;

[0061] BaO, BaF 2 、H 3 BO 3 Weigh the raw materials directly according to the molar ratio of 9:5:6, and mix the weighed raw materials with flux H 3 BO 3 Mix according to a molar ratio of 1:6, put it into an open platinum crucible of Φ80mm×80mm, heat it to 880°C at a heating rate of 30°C / h, keep the temperature for 20 hours, and obtain a mixed melt, and then cool it down to 800°C , quickly extend the seed rod into the liquid surface, and slowly lower it to 780°C at a rate of 3°C / h, lift the seed rod out of the liquid surface, small crystals will gather on the seed rod, and increase the temperature at a temperature of 60°C / h The rate is reduced to room temperature, and the barium boron oxyfluoride seed crystal is obtained;

[0062] The barium hydroxide in the reaction formula can be replaced by barium oxide or barium n...

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Abstract

The invention relates to a compound barium boron oxyfluoride, a barium boron oxyfluoride nonlinear optical crystal, and preparation methods and applications thereof. The barium boron oxyfluoride nonlinear optical crystal has a chemical formula of Ba7(BO3)3F5 and a molecular weight of 1232.81. The barium boron oxyfluoride nonlinear optical crystal belongs to a hexagonal crystal system, and a space group of P63mc. Lattice parameters are that a=11.1562(15)angstrom, c=7.2415(14)angstrom, Z=2 and V=780.5(2)angstrom<3>. A powder frequency-doubled effect reaches 1 / 3 of that of KDP, and a translucent band is 190nm to 2600nm. According to the invention, the compound is synthesized with a solid-phase reaction method, and the crystals are grown with a co-solvent method. The crystals has the advantages of simple preparation method, low cost, large crystal size, short growth period, less inclusion, high mechanical hardness, easy curing, easy polishing and processing, and easy storing. The compound barium boron oxyfluoride nonlinear optical crystal provided by the invention can be widely applied in frequency conversion and nonlinear optical devices such as optical parametric oscillators.

Description

technical field [0001] The invention relates to a compound barium boronoxyfluorine and barium boronoxyfluorine nonlinear optical crystal, a preparation method and the use of a nonlinear optical device made of the crystal. Background technique [0002] Nonlinear optical crystals are one of the important optoelectronic information functional materials and an important material basis for optoelectronic technology, especially laser technology. The preparation of new materials is the basis for studying the physical and chemical properties of all materials. With the development and combination of semiconductor and laser technology, all-solid-state lasers are more and more widely used in laser medicine, optical communication and integrated optics and other fields. As key materials for electronic devices, semiconductor devices, solid-state laser devices, and optical instruments and instruments, the research and development of crystals has always been an important topic in the field ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/22C30B9/12H01S3/16C01B35/06
Inventor 潘世烈赵文武
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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