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A cesium rubidium fluoroboroaluminate nonlinear optical crystal and its preparation method and application

A cesium rubidium fluoroboroaluminate and nonlinear optics technology, which is applied in the field of cesium rubidium fluoroboroaluminate nonlinear optical crystals and their preparation, can solve the problems of unsatisfactory comprehensive performance of nonlinear optical crystals and the like, and achieves layered growth habit Insignificant, qualitatively good, effect of large nonlinear effects

Active Publication Date: 2021-04-20
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cesium rubidium fluoroboroaluminate nonlinear optical crystal and its preparation method and application, so as to solve the problem that the comprehensive performance of the existing nonlinear optical crystal is not ideal

Method used

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  • A cesium rubidium fluoroboroaluminate nonlinear optical crystal and its preparation method and application
  • A cesium rubidium fluoroboroaluminate nonlinear optical crystal and its preparation method and application
  • A cesium rubidium fluoroboroaluminate nonlinear optical crystal and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation compound:

[0034] According to the reaction formula: CsF +RbF+ Al 2 o 3 + 3B 2 o 3 = CsRbAl 2 (B 3 o 6 ) 2 f 2 , the compound CsRbAl was synthesized by solid phase synthesis 2 (B 3 o 6 ) 2 f 2 , the synthetic compound CsRbAl 2 (B 3 o 6 ) 2 f 2 The dosage of reagents used:

[0035] CsF 1.519g (0.01mol)

[0036] RbF 1.0447 g (0.01 mol)

[0037] al 2 o 3 1.0196g (0.01mol)

[0038] B 2 o 3 2.0886g (0.03mol)

[0039] The specific operation steps are as follows:

[0040] Accurately weigh the raw materials according to the above mass, put them into an agate mortar, mix them evenly and grind them carefully, then put them into a corundum crucible of φ60mm×60mm, compact them, put them in a muffle furnace and slowly raise the temperature to 650°C and burn for 48 hours , which gives the compound CsRbAl 2 (B 3 o 6 ) 2 f 2 . Reaction product purity was determined by powder X-ray diffraction.

Embodiment 2

[0042] Preparation compound:

[0043] According to the reaction formula: CsF+RbF+2Al(OH) 3 +3B 2 o 3 =CsRbAl 2 (B 3 o 6 ) 2 f 2 +3H 2 O, synthetic compound CsRbAl 2 (B 3 o 6 ) 2 f 2 The dosage of reagents used:

[0044] CsF 1.519g (0.01mol)

[0045] RbF 1.0447 g (0.01 mol)

[0046] Al(OH) 3 1.5596g (0.02mol)

[0047] B 2 o 3 2.0886g (0.03mol)

[0048] The specific operation steps are as follows:

[0049] Accurately weigh the raw materials according to the above mass, put them into an agate mortar, mix them evenly and grind them carefully, then put them into a platinum crucible with a diameter of 40 mm × 40 mm, compact them, put them into a muffle furnace and slowly raise the temperature to 600 °C for 48 hours, the compound CsRbAl is obtained 2 (B 3 o 6 ) 2 f 2 . Reaction product purity was determined by powder X-ray diffraction.

Embodiment 3

[0051] Preparation compound:

[0052] According to the reaction formula:

[0053] CsF+RbF+Al 2 o 3 +6H 3 BO 3 →CsRbAl 2 (B 3 o 6 ) 2 f 2 +9H 2 O↑, the compound CsRbAl was synthesized by solid state reaction 2 (B 3 o 6 ) 2 f 2 :

[0054] CsF, RbF, Al 2 o 3 , H 3 BO 3 Mix evenly at a molar ratio of 1:1:1:6, then put it into a platinum crucible of φ40 mm×40 mm, compact it, put it in a muffle furnace and slowly heat it up to 500 ° C for 48 hours to obtain the compound CsRbAl 2 (B 3 o 6 ) 2 f 2 . Reaction product purity was determined by powder X-ray diffraction.

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Abstract

The invention provides a cesium rubidium fluoroboroaluminate nonlinear optical crystal and its preparation method and application. The chemical formula of the crystal is CsRbAl 2 (B 3 o 6 ) 2 f 2 , the molecular weight of the crystal is 567.19, the structure of the crystal belongs to the hexagonal system, and the space group is P-62c , the cell parameters are a =b=6.9807Å, c =8.057Å, α = β =90°, gamma =120°, the unit cell volume is 340.02Å 3 . The crystals can be grown by a pulling method or a high-temperature solution method. The nonlinear optical performance of the crystal of the invention is close to KBBF, and can be used for stepwise frequency doubling of Nd:YAG (λ=1064 nm) lasers to generate harmonic light output shorter than 200 nm. In addition, the crystal of the present invention has a single crystal structure, is colorless and transparent, has good thermal stability, does not use highly toxic raw materials for synthesis, can grow in an air atmosphere, and has no obvious layered growth habit.

Description

technical field [0001] The invention relates to the technical field of optoelectronic functional materials, in particular to cesium rubidium fluoroboroaluminate nonlinear optical crystal and its preparation method and application. Background technique [0002] The ultraviolet coherent light produced by multi-stage frequency conversion technology based on nonlinear optical crystals has the advantages of high efficiency, simple and compact structure, good output beam quality, and long life. , laser Raman spectrometer and other high-tech fields and advanced instrument manufacturing fields have important application prospects. Among them, nonlinear optical crystal materials suitable for ultraviolet / deep ultraviolet bands are the core materials of all-solid-state laser light sources. In recent years, new nonlinear optical crystal materials have been discovered continuously, but there are few crystal materials that can meet the output of commercial ultraviolet lasers. For a new ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/10C30B15/00C30B17/00G02F1/355
CPCC30B15/00C30B17/00C30B29/10G02F1/3551
Inventor 王颖刘红坤
Owner HEBEI UNIVERSITY
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