Compound barium borofluoride, barium borofluoride non-linear optical crystal, and preparation method and use of the barium borofluoride non-linear optical crystal

A nonlinear optics, barium fluoroborate technology, applied in nonlinear optics, chemical instruments and methods, boron oxide compounds, etc., can solve the problems of easy deliquescence of crystals, long growth period, serious layered growth habit, etc.

Active Publication Date: 2013-03-20
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 obvious shortcomings: such as crystal deliquescence, long growth cycle, serious layered growth habit and expensive price, etc.

Method used

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  • Compound barium borofluoride, barium borofluoride non-linear optical crystal, and preparation method and use of the barium borofluoride non-linear optical crystal
  • Compound barium borofluoride, barium borofluoride non-linear optical crystal, and preparation method and use of the barium borofluoride non-linear optical crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] According to the reaction formula: 2BaCO 3 +BaF 2 +6H 3 BO 3 →Ba 3 B 6 o 11 f 2 +2CO 2 ↑+9H 2 O ↑ Synthesis of Ba 3 B 6 o 11 f 2 Compound:

[0037] BaCO 3 、BaF 2 、H 3 BO 3 Weigh it into a mortar with a molar ratio of 2:1:6, 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 550°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 650°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 780°C ℃, constant temperature for 48 hours, take out the single-phase polycrystalline powder of barium fluoroborate compound obtained by grinding, and carry out X-ray analysis on the product, the obtained X-ray spectrum is ...

Embodiment 2

[0044] According to the reaction formula: 2Ba(NO 3 ) 2 +BaF 2 +6H 3 BO 3 →Ba 3 B 6 o 11 f 2 +2NO 2 ↑+9H 2 O↑+3O 2 ↑ Synthesis of Ba 3 B 6 o 11 f 2 Compound:

[0045] Ba(NO 3 ) 2 、BaF 2 、H 3 BO 3 Weigh the raw materials directly according to the molar ratio of 2:1:6, 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 745°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 715°C;

[0046] Slowly cool down to room temperature at a rate of 1.5°C / h, and spontaneously crystallize to obtain barium fluoroborate seed crystals;

[0047] Ba will be obtained 3 B 6 o 11 f 2 The seed crystal is fixed on the seed crystal rod, and the seed crystal is lowered from the top of the crystal growth furnace. The see...

Embodiment 3

[0051] According to the reaction formula: 2BaO+BaF 2 +6H 3 BO 3 →Ba 3 B 6 o 11 f 2 +9H 2 O ↑ Synthesis of Ba 3 B 6 o 11 f 2 Compound:

[0052] BaO, BaF 2 、H 3 BO 3 Put it into a mortar with a molar ratio of 2:1:6, 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, slowly raise the temperature to 550°C, and 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 780°C for another 48 hours, take it out, and put it in the mortar Ba 3 B 6 o 11 f 2 Compound, carry out X-ray analysis to this product, gained X-ray spectrogram and barium fluoroborate Ba 3 B 6 o 11 f 2 The X-ray spectra obtained by the single crystal structure are consistent;

[0053] The synthesized Ba 3 B 6 o ...

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Abstract

The invention discloses a compound barium borofluoride, a barium borofluoride non-linear optical crystal, and a preparation method and a use of the barium borofluoride non-linear optical crystal. The compound barium borofluoride and the barium borofluoride non-linear optical crystal have the same chemical formula of Ba3B6O11F2. The barium borofluoride non-linear optical crystal belongs to a monoclinic system, has a space group P2(1), has cell parameters shown in the patent specification, wherein beta is equal to 101.351(4)deg., and has the molecular weight of 690.88. The powder frequency-doubling effect of the barium borofluoride non-linear optical crystal is 3 times that of KDP (KH2PO4). The compound barium borofluoride is synthesized by a solid-phase reaction method. The barium borofluoride non-linear optical crystal grows by a high-temperature melting method. The barium borofluoride non-linear optical crystal has large mechanical hardness, can be cut, polished and stored easily, and can be widely used in preparation of nonlinear optical devices such as a frequency multiplication generator, an upper frequency converter, a lower frequency converter and an optical parameter resonator.

Description

technical field [0001] The present invention relates to chemical formula Ba 3 B 6 o 11 f 2 The compound barium fluoroborate and the barium fluoroborate nonlinear optical crystal, the preparation method of the crystal and the nonlinear optical device made by using the crystal. Background technique [0002] At present, the main nonlinear optical materials are: BBO (β-BBO), LBO (LiB 3 o 5 ) crystals, CBO (CsB 3 o 5 ) crystals, CLBO (CsLiB 6 o 10 ) crystals and KBBF (KBe 2 BO 3 f 2 ) crystals. Although the crystal growth technology of these materials has become increasingly mature, there are still obvious deficiencies: such as crystal deliquescence, long growth cycle, serious layered growth habit and high price. Therefore, finding new nonlinear optical crystal materials is still a very important and arduous work. [0003] Therefore, in recent years, when developing new nonlinear optical crystals, not only the optical properties and mechanical properties of the crys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/20C01B35/12C30B9/06C30B15/00G02F1/37G02F1/355G02F1/39
Inventor 潘世烈吴红萍俞洪伟侯雪玲
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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