Chlorine boron barium silicate and chlorine boron barium silicate nonlinear optical crystal and preparation method and use thereof

A barium chloroborosilicate and nonlinear optics technology, applied in nonlinear optics, chemical instruments and methods, optics, etc., can solve the problems of crystal deliquescence, long growth cycle, and difficult growth

Active Publication Date: 2014-12-17
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the crystal growth technology of these materials has become increasingly mature, there are still some shortcomings: the crystal is easy to deliquescence, the growth cycle is long, and it is difficult to grow large-

Method used

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  • Chlorine boron barium silicate and chlorine boron barium silicate nonlinear optical crystal and preparation method and use thereof
  • Chlorine boron barium silicate and chlorine boron barium silicate nonlinear optical crystal and preparation method and use thereof
  • Chlorine boron barium silicate and chlorine boron barium silicate nonlinear optical crystal and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] According to the reaction formula: 6.5BaCO 3 +0.5BaCl 2 +SiO2 2 +3H 3 BO 3 →Ba 7 SiB 3 o 13 Cl+6.5CO 2 ↑+4.5H 2 O ↑ Synthesis of Ba 7 SiB 3 o 13 Cl compounds:

[0041] BaCO 3 , BaCl 2 , SiO 2 h 3 BO 3 According to the molar ratio of 6.5:0.5:1:3, put it into a mortar, 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 500°C, and keep the temperature at 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 880°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 heat up to 900°C, keep the temperature constant for 48 hours, take it out, and obtain a single-phase polycrystalline powder of barium chloroborosilicate compound. The product is subjected to X-ray analysis, and the...

Embodiment 2

[0047] According to the reaction formula: 6.5Ba(NO 3 ) 2 +0.5BaCl 2 +SiO2 2 +3H 3 BO 3 →Ba 7 SiB 3 o 13 Cl+13NO 2 ↑+4.5H 2 O↑+3.25O 2 ↑ Synthesis of Ba 7 SiB 3 o 13 Cl compounds:

[0048] Ba(NO 3 ) 2 , BaCl 2 , SiO 2 、H 3 BO 3 Weigh the raw materials directly according to the molar ratio of 6.5:0.5:1:3, and combine the weighed raw materials with the flux NaF-H 3 BO 3 Mixing at a molar ratio of 1:12, where NaF and H 3 BO 3 The molar ratio is 1:3, put it into a Φ80mm×80mm open platinum crucible, raise the temperature to 880°C, and keep the temperature for 60 hours to obtain a mixed melt, then cool it down to 835°C, and then increase the temperature at a rate of 1.5°C / h Slowly cool down to room temperature, and spontaneously crystallize to obtain barium chloroborosilicate seed crystals;

[0049] Ba will be obtained 7 SiB 3 o 13 The Cl seed crystal is fixed on the seed rod, and the seed crystal is lowered from the top of the crystal growth furnace. The see...

Embodiment 3

[0053] According to the reaction formula: 6.5BaO+0.5BaCl 2 +SiO2 2 +3H 3 BO 3 →Ba 7 SiB 3 o 13 C+4.5H 2 O ↑ Synthesis of Ba 7 SiB 3 o 13 Cl compounds;

[0054] BaO, BaCl 2 , SiO 2 、H 3 BO 3 Put it into a mortar with a molar ratio of 6.5:0.5:1:3, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, press it tightly, put it into a muffle furnace, and slowly heat up to a temperature of 500 ℃, constant temperature for 24 hours, take out the crucible after cooling, at this time the sample is relatively loose, take out the sample and grind it evenly for the second time, then put it in the crucible, in the muffle furnace at a temperature of 880 ℃, constant temperature for 24 hours, take it out At this time, the sample has a certain degree of sintering. After the third grinding, it is put into a mortar, crushed and ground, and then placed in a crucible. In the muffle furnace, the temperature is 900 ° C, and the temperature is ...

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Abstract

The invention relates to compound chlorine boron barium silicate and chlorine boron barium silicate nonlinear optical crystal and a preparation method and use thereof. The compound chlorine boron barium silicate has the chemical formula of Ba7SiB3O13Cl and the molecular weight of 1265.35, and the compound chlorine boron barium silicate is synthesized by use of solid reaction process; the chlorine boron barium silicate nonlinear optical crystal has the chemical formula of Ba7SiB3O13Cl and the molecular weight of 1265.28, has a crystal structure belonging to hexagonal crystal system, and has the space group of P63mc, the unit cell parameters of a= 11.195(4), c = 7.263(6), Z = 2 and V = 788.3<3>. The crystal has a wide light transmitting range, and the powder frequency multiplication effect is 1 time of KDP (potassium dihydrogen phosphate). The chlorine boron barium silicate nonlinear optical crystal is grown by a high temperature melt method, is high in mechanical hardness and easy in cutting, polishing processing and preservation, and can be widely used in preparation of frequency doubling generators, upper frequency converters, lower frequency converters or optical parametric oscillators and other nonlinear optical devices.

Description

technical field [0001] The invention relates to a compound barium chloroborosilicate and a barium chloroborosilicate nonlinear optical crystal, a preparation method and an application. Background technique [0002] Nonlinear optical crystal materials have always been one of the hot topics in high-tech research, and have been widely used in communications, aerospace, industry, transportation and other fields. At present, many excellent nonlinear optical crystals have been discovered, such as BBO (β-BaB 2 o 4 ), LBO (LiB 3 o 5 ), CBO (CsB 3 o 5 ), CLBO (CsLiB 6 o 10 ) and KBBF (KBe 2 BO 3 f 2 ) crystals, etc. Although the crystal growth technology of these materials has become increasingly mature, there are still some shortcomings: the crystal is easy to deliquescence, the growth cycle is long, and it is difficult to grow large-sized crystals. Therefore, exploring and synthesizing new nonlinear optical crystal materials is still an important and arduous work. [0...

Claims

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Application Information

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IPC IPC(8): C30B29/34C01B35/12C30B9/12G02F1/355
Inventor 潘世烈林晓霞张方方
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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