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Compound caesium rubidium fluorborate, caesium rubidium fluorborate nonlinear optical crystal, preparation method and application

A cesium rubidium fluoroborate and nonlinear optics technology, applied in the field of compounds, can solve the problems of limited application, long crystal growth period, layered growth habit, etc.

Active Publication Date: 2018-01-26
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

Due to the long growth period of the crystal, the presence of highly toxic Be elements, and the layered growth habit, its application is limited to a certain extent.

Method used

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  • Compound caesium rubidium fluorborate, caesium rubidium fluorborate nonlinear optical crystal, preparation method and application
  • Compound caesium rubidium fluorborate, caesium rubidium fluorborate nonlinear optical crystal, preparation method and application
  • Compound caesium rubidium fluorborate, caesium rubidium fluorborate nonlinear optical crystal, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation compound:

[0049] According to the reaction formula: CsF+RbF+4B 2 o 3 →CsRbB 8 o 12 f 2 , the compound CsRbB was synthesized by solid phase synthesis 8 o 12 f 2 :

[0050] CsF, RbF, B 2 o 3 Mix evenly at a molar ratio of 1:1:4, put it into a clean, non-polluting platinum crucible with a volume of 28mL, then put it into a muffle furnace, raise the temperature to 450°C, and keep the temperature constant for 96 hours to obtain the compound CsRbB 8 o 12 f 2 polycrystalline powder.

Embodiment 2

[0052] Preparation compound:

[0053] According to the reaction formula: CsF+RbF+8H 3 BO 3 →CsRbB 8 o 12 f 2 +12H 2 O↑, the compound CsRbB was synthesized by solid phase reaction 8 o 12 f 2 :

[0054] CsF, RbF, H 3 BO 3 Mix evenly at a molar ratio of 1:1:4, put it into a clean, pollution-free platinum crucible with a volume of 28mL, then put it into a muffle furnace, raise the temperature to 500°C, and keep the temperature constant for 3 hours to obtain the compound CsRbB 8 o 12 f 2 polycrystalline powder.

Embodiment 3

[0056] Preparation compound:

[0057] According to the reaction formula: CsF+RbBF 4 +4B 2 o 3 →CsRbB 8 o 12 f 2 +BF 3 ↑, Compound CsRbB was synthesized by vacuum encapsulation 8 o 12 f 2 :

[0058] CsF, RbBF 4 , B 2 o 3 Mix evenly at a molar ratio of 1:1:2, put it into a Φ40mm quartz tube, and vacuum the quartz tube to a degree of 1×10 -3 Pa, vacuum packaged with a flame gun at high temperature, put it into a muffle furnace, raise the temperature to 350°C at a rate of 50°C, and keep the temperature constant for 96 hours. After the temperature drops to room temperature, open the quartz tube to obtain the compound CsRbB 8 o 12 f 2 polycrystalline powder.

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Abstract

The invention provides a compound caesium rubidium fluorborate, a caesium rubidium fluorborate nonlinear optical crystal, a preparation method and application. The compound has a chemical formula of CsRbB8O12F2 and a molecular weight of 534.86, and is prepared by solid phase synthesis or vacuum encapsulation method. The crystal has a chemical formula of CsRbB8O12F2 and a molecular weight of 534.86, belongs to hexagonal crystal system, has a space group of P-62c, the cell parameters of a=b=6.5878 angstrom, c=7.813 angstrom, alpha=beta=90 degrees, gamma=120 degrees, and a unit cell volume of 293.6 angstrom<3>. The frequency-doubled effect of the crystal is 2 times that of KH2PO4(KDP), and the ultraviolet absorption edge is 150-200nm. CsRbB8O12F2 adopts high temperature melt liquid method, vacuum encapsulation method, hydrothermal method or room temperature solution method for crystal growth, the crystal has the advantages of no deliquescence in the air and good chemical stability, and can be applied as ultraviolet and deep ultraviolet nonlinear optical crystal in all-solid-state lasers.

Description

technical field [0001] The invention relates to a compound cesium rubidium fluoroborate CsRbB 8 o 12 f 2 and cesium rubidium fluoroborate CsRbB 8 o 12 f 2 Nonlinear optical crystal, its preparation method and application. Background technique [0002] Deep ultraviolet (λ<200nm) nonlinear optical crystal materials are the main means to obtain deep ultraviolet lasers based on nonlinear optical effects, which can greatly promote the working range of all solid-state lasers. After half a century of research, a series of nonlinear optical crystals with excellent performance have been discovered. The representative nonlinear optical crystal in the visible light band is KTiOPO 4 (KTP), KH 2 PO 4 (KDP) and so on. In the ultraviolet band, the nonlinear optical crystal LiB that has been industrialized 3 o 5 (LBO), CsB 3 o 5 (CBO), CsLiB 6 o 10 (CLBO) and BaB 2 o 4 (BBO) etc. But in the deep ultraviolet band below 200nm, the practical nonlinear optical crystal is o...

Claims

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Application Information

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IPC IPC(8): C01B35/18C30B9/12C30B7/10C30B7/04C30B29/10G02F1/355
Inventor 潘世烈王颖
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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