Compound mono-boric dihydroxyl strontium decaborate monohydrate nonlinear optical crystal and preparation method and use thereof

A boric acid dihydroxystrontium decaborate, nonlinear optics technology, applied in nonlinear optics, chemical instruments and methods, optics and other directions, can solve the problems of difficult crystal growth, weak bonding force, difficult processing, etc., achieves simple preparation, Low cost, fast growth effect

Inactive Publication Date: 2015-04-29
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

The KBBF layers are connected by the ionic bonds of K and F, and the bonding force between the layers is very weak. Because of this, it has a strong l

Method used

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  • Compound mono-boric dihydroxyl strontium decaborate monohydrate nonlinear optical crystal and preparation method and use thereof
  • Compound mono-boric dihydroxyl strontium decaborate monohydrate nonlinear optical crystal and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] With the chemical reaction formula 2SrCl 2 +11H 3 BO 3 →Sr 2 (B 5 o 8 (OH)) 2 B(OH) 3 ·H 2 O+4Cl - +11H 2 O+4H + To prepare crystals, the specific steps are as follows:

[0044] a. Mole ratio of SrCl 2 :H 3 BO 3 =1:4, the SrCl 2 Add to the polytetrafluoroethylene liner of a 23mL autoclave, add H 3 BO 3 , and then add 10 mL of deionized water to make it fully mixed to obtain a mixed solution;

[0045] b. Add 1 mL of LiOH solution with a mineralizer concentration of 3 mol / L to the mixed solution in step a and mix;

[0046] c. Tighten the polytetrafluoroethylene-lined lid with the mixed solution in step b, put it into a corresponding clean and pollution-free autoclave, and tighten the piston of the reactor;

[0047] d. Place the autoclave in step c in an incubator, raise the temperature to 180°C at a rate of 20°C / h, keep the temperature constant for 3 days, and then lower it to room temperature at a rate of 2°C / h;

[0048] e. Open the high-pressure react...

Embodiment 2

[0050] According to the chemical reaction formula 2Sr(CH 3 COO) 2 +11H 3 BO 3 →Sr 2 (B 5 o 8 (OH)) 2 B(OH) 3 ·H 2 O+4CH 3 COO - +9H 2 O+4H + Prepare crystals:

[0051] a. Sr(CH in molar ratio) 3 COO) 2 ·H 2 O:H 3 BO 3 =1:2, Sr(CH 3 COO) 2 ·H 2 O was added to the polytetrafluoroethylene liner of an autoclave with a volume of 80 mL, and H 3 BO 3 , and then add 35mL of deionized water to make it fully mixed to obtain a mixed solution;

[0052]b. Add 0.5 mL of NaOH solution with a mineralizer concentration of 3 mol / L to the mixed solution in step a and mix;

[0053] c. Tighten the polytetrafluoroethylene-lined lid with the mixed solution in step b, put it into a corresponding clean and pollution-free autoclave, and tighten the piston of the reactor;

[0054] d. Place the autoclave in step c in an incubator, raise the temperature to 200°C at a rate of 30°C / h, keep the temperature constant for 6 days, and cool to room temperature naturally;

[0055] e. Open ...

Embodiment 3

[0057] With the chemical reaction formula 2SrSO 4 +11H 3 BO 3 →Sr 2 (B 5 o 8 (OH)) 2 B(OH) 3 ·H 2 O+2SO 4 2- +11H 2 O+4H + Prepare crystals:

[0058] a. SrSO in molar ratio 4 :H 3 BO 3 =1:6, the SrSO 4 Add to the polytetrafluoroethylene liner of a 23mL autoclave, add H 3 BO 3 , and then add 10 mL of deionized water to make it fully mixed to obtain a mixed solution;

[0059] b. Add 0.5 mL of KOH solution with a mineralizer concentration of 3 mol / L to the mixed solution in step a and mix;

[0060] c. Tighten the polytetrafluoroethylene-lined lid with the mixed solution in step b, put it into a corresponding clean and pollution-free autoclave, and tighten the piston of the reactor;

[0061] d. Place the autoclave in step c in a thermostat, raise the temperature to 210°C at a rate of 50°C / h, keep the temperature constant for 10 days, and then lower it to room temperature at a rate of 30°C / h;

[0062] e, open the autoclave, filter the solution containing the cry...

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Abstract

The invention relates to a compound mono-boric dihydroxyl strontium decaborate monohydrate nonlinear optical crystal and a preparation method and use thereof. The compound mono-boric dihydroxyl strontium decaborate monohydrate nonlinear optical crystal has a chemical formula of Sr2(B5O8(OH))2B(OH]3.H2O, has the molecular weight of 653.21, belongs to a monoclinic crystal system, has the space group of P21 and has the crystal cell parameters that a is equal to 6.7003(2) angstroms, b is equal to 20.7996(3) angstroms, c is equal to 6.6013(3) angstroms, beta is equal to 119.2503(3) degrees, and V is equal to 802.53(3) angstroms<3>. The compound nonlinear optical crystal is obtained through a programmed cooling or natural cooling method by adopting a hydrothermal method; the powder frequency-doubled effect of the crystal is about twice that of KDP(KH2PO4), and the ultraviolet cutoff edge of the crystal is smaller than 190nm, so that the crystal can serve as a deep-ultraviolet nonlinear optical crystal. A growth process of the crystal has the advantages of simplicity in operation, low cost, low raw material toxicity, short growth cycle, stable physicochemical properties and the like, and the crystal is extensively applied to nonlinear optical devices, such as frequency doubling generators, up frequency converters, down frequency converters or optical parametric oscillators.

Description

technical field [0001] The present invention relates to the chemical formula Sr 2 (B 5 o 8 (OH)) 2 B(OH) 3 ·H 2 O nonlinear optical crystal and preparation method, nonlinear optical device made by using the crystal. The invention belongs to the field of inorganic chemistry, and also belongs to the field of material science and optics. Background technique [0002] In 1960, Maiman successfully developed the world's first ruby ​​(Cr 3+ :Al 2 o 3 ) laser, in 1961, Franken injected a ruby ​​laser into a crystal, and discovered the crystal laser frequency doubling phenomenon for the first time. The discovery of this phenomenon strongly promoted the rapid development of nonlinear optical crystal materials. [0003] Most of the early nonlinear optical crystals were selected from the known piezoelectric and electro-optic crystals. For example, water-soluble KDP family crystals, oxide crystals such as barium sodium niobate (BNN) and lithium niobate (LN), and semiconductor c...

Claims

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Application Information

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IPC IPC(8): C30B29/54C30B28/04G02F1/355
Inventor 潘世烈蒋相站韩健
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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