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Lithium rubidium barium aluminum boron oxygen fluoride and lithium rubidium barium aluminum boron oxygen fluoride nonlinear optical crystal and preparation method and use thereof

A nonlinear optics, lithium rubidium barium technology, applied in lithium rubidium barium aluminum boron oxyfluoride and lithium rubidium barium aluminum boron oxyfluorine nonlinear optical crystals and the fields of preparation and use, can solve the problem of high price, long growth period and easy crystal. Deliquescence etc.

Active Publication Date: 2017-06-20
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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  • Lithium rubidium barium aluminum boron oxygen fluoride and lithium rubidium barium aluminum boron oxygen fluoride nonlinear optical crystal and preparation method and use thereof
  • Lithium rubidium barium aluminum boron oxygen fluoride and lithium rubidium barium aluminum boron oxygen fluoride nonlinear optical crystal and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] According to the reaction formula: 6BaCO 3 +3Rb 2 CO 3 +Li 2 CO 3 +2LiF+4Al 2 o 3 +12H 3 BO 3 →2Rb 3 Ba 3 Li 2 al 4 B 6 o 20 F+10CO 2 ↑+18H 2 O↑, preparation of Rb 3 Ba 3 Li 2 al 4 B 6 o 20 F crystal;

[0044] BaCO 3 , Rb 2 CO 3 , Li 2 CO 3 , LiF, Al 2 o 3 、H 3 BO 3 Put it into a mortar according to the molar ratio of the equation, 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. After cooling, take out the crucible. At this time, the sample is relatively loose, then take out the sample and re-grind it evenly, then put it in a crucible, keep the temperature in the muffle furnace at 670°C for 48 hours, take it out, put it in a mortar, smash and grind it to get Rb 3 Ba 3 Li 2 al 4 B 6 o 20 F compound, carry out X-ray analysis to this product, gained X-ray spectrogram and li...

Embodiment 2

[0053] According to the reaction formula: 5BaCO 3 +3Rb 2 CO 3 +2Li 2 CO 3 +BaF 2 +4Al 2 o 3 +12H 3 BO 3 →2Rb 3 Ba 3 Li 2 al 4 B 6 o 20 F+10CO 2 ↑+18H 2 O↑, preparation of Rb 3 Ba 3 Li 2 al 4 B 6 o 20 F crystal:

[0054] Growth of large size Rb by high temperature solution method 3 Ba 3 Li 2 al 4 B 6 o 20 F crystal:

[0055] BaCO 3 , Rb 2 CO 3 , Li 2 CO 3 、BaF 2 、Al 2 o 3 、H 3 BO 3 Weigh the raw materials directly according to the molar ratio in the equation, and combine the weighed raw materials with flux LiF-H 3 BO 3 Mixing at a molar ratio of 1:4, where LiF and H 3 BO 3 The molar ratio is 2:1, put it into a Φ80mm×80mm open platinum crucible, heat up to 745°C, keep the temperature for 5 hours, and then cool down to 675°C to obtain a mixed melt;

[0056] Preparation of lithium rubidium barium aluminum boron oxyfluoride seed crystal: Slowly cool the obtained melt to room temperature at a rate of 1.5°C / h, and spontaneously crystallize t...

Embodiment 3

[0061] According to the reaction formula: 6BaCO 3 +2Rb 2 CO 3 +2Li 2 CO 3 +2RbF+4Al 2 o 3 +12H 3 BO 3 →2Rb 3 Ba 3 Li 2 al 4 B 6 o 20 F+10CO 2 ↑+18H 2 O↑; Synthesis of Rb 3 Ba 3 Li 2 al 4 B 6 o 20 F crystal:

[0062] BaCO 3 , Rb 2 CO 3 , Li 2 CO 3 , RbF, Al 2 o 3 、H 3 BO 3Put it into a mortar according to the molar ratio in the equation, 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, slowly raise the temperature to 550°C, and keep the temperature constant for 24 hours. After cooling, take out the crucible. 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 670°C for another 48 hours, take it out, put it in a mortar and grind it. Get Rb 3 Ba 3 Li 2 Al 4 B 6 o 20 F compound, carry out X-ray analysis to this product, gained X-ray spe...

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PUM

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Abstract

The invention relates to lithium rubidium barium aluminum boron oxygen fluoride and lithium rubidium barium aluminum boron oxygen fluoride nonlinear optical crystal and a preparation method and use thereof. The lithium rubidium barium aluminum boron oxygen fluoride has a chemical formula of Rb3Ba3Li2Al4B6O20F and molecular weight of 1194.09 and is prepared through a solid reaction method. The lithium rubidium barium aluminum boron oxygen fluoride nonlinear optical crystal has a chemical formula of Rb3Ba3Li2Al4B6O20F, molecular weight of 905.82, belongs to a hexagonal system and a space group P-62c and has cell parameters of a=8.7017 (2) A, c=16.9807 (8) A and V=1113.51 (6) A<3>. The lithium rubidium barium aluminum boron oxygen fluoride is prepared through a solid reaction method. The lithium rubidium barium aluminum boron oxygen fluoride nonlinear optical crystal grows through a high temperature melt method, has powder frequency-doubling effect 1.5 times that of KDP(KH2PO4), has a UV cut-off edge of 190nm, has large mechanical hardness, can be cut, polished and stored easily, and can be widely used in nonlinear optical devices such as a frequency multiplication generator, an upper frequency converter, a lower frequency converter or an optical parametric oscillator.

Description

technical field [0001] The present invention relates to the chemical formula Rb 3 Ba 3 Li 2 al 4 B 6 o 20 The compound of F, the nonlinear optical crystal, the preparation method of the crystal and the fabrication of the nonlinear optical device by using the crystal. Background technique [0002] Using the nonlinear optical effect of crystals, nonlinear optical devices such as second harmonic generators, up and down frequency converters, and optical parametric oscillators can be made. The laser generated by the laser can be frequency converted by nonlinear optical devices, so as to obtain more useful wavelengths of laser light, so that the laser can be used more widely. Among nonlinear optical crystal materials, halogen-containing nonlinear optical crystals are a relatively unique class of crystal materials. Because the halide ions have a great similarity in coordination structure, their physical and chemical properties make it possible for the halide ions to replace ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/10C30B15/36C30B15/14G02F1/355C01B35/06
CPCC01B35/06C01P2002/72C01P2002/77C30B15/14C30B15/36C30B29/10G02F1/3551
Inventor 潘世烈俞洪伟吴红萍
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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