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Compound lead borate hydrate nonlinear optical crystal and preparation method and use thereof

A hydrated lead borate, nonlinear optics technology, applied in nonlinear optics, chemical instruments and methods, optics, etc., can solve the problems of inability to buy crystals in the market, high price, long growth cycle, etc., and it is extremely easy to achieve crystals. Grow up and transparent, easy to large size crystals, fast growth effect

Active 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

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 expensive price, etc.
[0004] Although Pb 6 B 11 o 27 h 9 Compounds have been reported successively as early as 2002 (such as Z.T.Yu, Z.Shi, Y.S.Jiang, H.M.Yuan, J.S.Chen, Chem.Mater.2002, 14, 1314., etc.), but these reports have no effect on the linearity and nonlinearity of crystals. There are few performance test studies, and its application in nonlinear optical performance has not yet been involved
To test the basic physical properties (including nonlinear optical properties) of a crystal, the crystal needs to be a single crystal with a size of several millimeters or even centimeters. So far, there has been no relevant preparation of Pb with a size sufficient for physical testing. 6 B 11 o 27 h 9 There is no single crystal report, and the crystal cannot be purchased in the market, and there is no report on Pb 6 B 11 o 27 h 9 A complete report of the test results of the nonlinear optical properties of single crystals or the Pb 6 B 11 o 27 h 9 The Report of Using Single Crystal to Fabricate Nonlinear Optical Devices

Method used

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  • Compound lead borate hydrate nonlinear optical crystal and preparation method and use thereof
  • Compound lead borate hydrate nonlinear optical crystal and preparation method and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] According to the chemical reaction formula Pb(NO 3 ) 2 +H 3 BO 3 +H 2 O→Pb 6 B 11 o 27 h 9 +HNO 3 +H 2 O, the specific operation is carried out according to the following steps;

[0036] Weigh Pb(NO 3 ) 2 Solid and H 3 BO 3 powder, and mix it in the polytetrafluoroethylene lining of a 25mL autoclave, add 4mL of deionized water to dissolve, and treat the incompletely dissolved substance in an ultrasonic wave at a temperature of 40°C for 60min to make it fully mixed;

[0037] Then the polytetrafluoroethylene liner was taken out, cooled to room temperature naturally, and KOH was added to adjust the pH value to 10;

[0038] Compress the PTFE-lined lid, put it into a corresponding clean and pollution-free stainless steel autoclave, and tighten the piston;

[0039] Put the reaction kettle into a constant temperature box, raise the temperature to 200°C at a rate of 30°C / hour, keep the temperature for 4 days, and then lower it to room temperature at a rate of 20°...

Embodiment 2

[0041] According to the chemical reaction formula Pb(CH 3 COO) 2 ·3H 2 O+H 3 BO 3 +H 2 O→Pb 6 B 11 o 27 h 9 +HCH 3 COO+H 2 O, the specific operation is carried out according to the following steps;

[0042] Weigh Pb(CH 3 COO) 2 ·3H 2 O solid and H 3 BO 3 powder, and mix it in the polytetrafluoroethylene lining of a 100mL autoclave, add 10mL of deionized water to dissolve, and treat the incompletely dissolved substance in an ultrasonic wave at a temperature of 40°C for 60min to make it fully mixed;

[0043] Then the polytetrafluoroethylene liner was taken out, cooled to room temperature naturally, and KOH was added to adjust the pH value to 10;

[0044] Compress the PTFE-lined lid, put it into a corresponding clean and pollution-free stainless steel autoclave, and tighten the piston;

[0045] Put the reactor into a constant temperature box, raise the temperature to 180°C at a rate of 45°C / hour, keep the temperature for 5 days, then lower it to room temperature ...

Embodiment 3

[0047] According to the chemical reaction formula Pb(NO 3 ) 2 +B 2 o 3 +H 2 O→Pb 6 B 11 o 27 h 9 +HNO 3 +H 2 O, the specific operation is carried out according to the following steps;

[0048] Weigh Pb(NO 3 ) 2 Solid and B 2 o 3 powder, and mix it in the polytetrafluoroethylene lining of a 25mL autoclave, add 3mL deionized water, and treat the incompletely dissolved substance in an ultrasonic wave at a temperature of 60°C for 60 minutes to make it fully mixed;

[0049] Then the polytetrafluoroethylene liner was taken out, cooled to room temperature naturally, and KOH was added to adjust the pH value to 8;

[0050] Compress the PTFE-lined lid, put it into a corresponding clean and pollution-free stainless steel autoclave, and tighten the piston;

[0051] Put the reactor into a constant temperature box, raise the temperature to 200°C at a rate of 40°C / hour, keep the temperature for 7 days, then lower it to room temperature at a rate of 10°C / day, open the reactor, ...

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Abstract

The invention relates to a compound lead borate hydrate nonlinear optical crystal and a preparation method and use thereof. The crystal has a chemical molecular formula of Pb6B11O27H9, belongs to a hexagonal crystal system, has the space group of P32, has the molecular weight of 1803.182, and has the unit cell parameters that a is equal to 11.85 angstroms, b is equal to 11.85 angstroms, c is equal to 13.40 angstroms, and Z is equal to 3. The lead borate hydrate nonlinear optical crystal is obtained through hydrothermal reaction by adopting a hydrothermal method. The nonlinear optical effect of the crystal is 1.2 times that of a KDP crystal, the ultraviolet absorption cutoff edge is smaller than 190nm, and the transmission range in ultraviolet and visible regions is wide. A growth process of the crystal has the advantages of simplicity in operation, low cost, low used raw material toxicity, short growth cycle, stable physicochemical properties and the like. The nonlinear optical conversion crystal disclosed by the invention is extensively applied to nonlinear optical devices, such as frequency doubling converters and optical parametric oscillators.

Description

technical field [0001] The invention relates to a compound hydrated lead borate nonlinear optical crystal and a preparation method and application thereof, which belong to the field of inorganic chemistry, and also belong to the fields of crystallography, material science and optics. Background technique [0002] Nonlinear optical effects originate from the interaction between laser and medium. When the laser is incident on the crystal, due to the strong coherent light emitted by the laser, the electric field at the optical frequency is extremely strong, which will cause nonlinear polarization of the material. The nonlinear polarization of the material causes changes in the optical properties of the material, resulting in energy coupling between light of different frequencies, which changes the frequency, amplitude, polarization and propagation direction of the incident light. This effect is the nonlinear optical effect. Nonlinear optical crystals have important application...

Claims

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Application Information

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IPC IPC(8): C30B29/10C30B28/04G02F1/355
CPCC30B28/04C30B29/10G02F1/3551
Inventor 潘世烈康婧杨云
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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