Large size hydrate potassium borate nonlinear optical crystal, preparation and use thereof

A hydrated potassium borate, nonlinear optics technology, applied in nonlinear optics, chemical instruments and methods, optics, etc., can solve the problems of high price, long growth period, easy deliquescence of crystals, etc. Short, fast-growing effects

Inactive Publication Date: 2009-08-26
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

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.
[0006] In 1966, although K 3 B 3 o 6 4H 2 O compounds have been reported for a long time, but these reports have not yet involved the testing and research of the linear and nonlinear properties of crystals and their applications in nonlinear optics.
To test the basic physical properties (including nonlinear optical properties) of a crysta

Method used

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  • Large size hydrate potassium borate nonlinear optical crystal, preparation and use thereof
  • Large size hydrate potassium borate nonlinear optical crystal, preparation and use thereof
  • Large size hydrate potassium borate nonlinear optical crystal, preparation and use thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] According to the chemical reaction formula KOH+H 3 BO 3 +H 2 O→K 3 B 3 o 6 4H 2 O+H 2 O as an example, the specific operation steps are as follows:

[0044] Weigh KOH solid and H 3 BO 3 powder and dissolved it in a container filled with 50 mL of deionized water in which KOH and H 3 BO 3 The molar ratio of the solution is 1:1, and the incompletely dissolved substance is treated in an ultrasonic wave at a temperature of 30°C for 60 minutes to fully mix and dissolve;

[0045] Then the solution was taken out, naturally cooled to room temperature, and left to stand until insoluble matter no longer appeared, and KOH was added to adjust the pH value to 10;

[0046] Seal it with plastic wrap, then pierce some small holes on the film, put the solution in a clean, pollution-free, air-free environment, the reaction temperature is 20°C, and stand for 60 days;

[0047] After 60 days, some smaller crystals formed on the white insoluble matter at the bottom of the containe...

Embodiment 2

[0050] With the chemical reaction formula K 2 CO 3 +H 3 BO 3 +H 2 O→K 3 B 3 o 6 4H 2 O+CO 2 ↑+H 2 O is an example, and the specific operation steps are carried out according to embodiment 1;

[0051] Weigh K 2 CO 3 Solid and H 3 BO 3 powder and dissolve it in a container filled with 100 mL of deionized water, where K 2 CO 3 and H 3 BO 3 The molar ratio of the solution is 1:2, and then the incompletely dissolved substance is treated in an ultrasonic wave at a temperature of 35°C for 60 minutes to fully mix and dissolve;

[0052] Then the solution was taken out, naturally cooled to room temperature, and left to stand until insoluble matter no longer appeared, and KOH was added to adjust the pH value to 11;

[0053] Put the solution system open in a clean, pollution-free, air-free environment, and let it stand at a reaction temperature of 30°C for 45 days;

[0054] After 45 days, some smaller crystals formed on the white insoluble matter, and the crystals conti...

Embodiment 3

[0057] According to the chemical reaction formula KOH+B 2 o 3 +H 2 O→K 3 B 3 o 6 4H 2 O+H 2 O is an example, and the specific operation steps are carried out according to embodiment 1;

[0058] Weigh KOH solid and B 2 o 3 powder and dissolved it in a container of 500 mL deionized water with KOH and B 2 o 3 The molar ratio of the solution is 3:1, and the incompletely dissolved substance is treated in an ultrasonic wave at a temperature of 40°C for 60 minutes to fully mix and dissolve;

[0059] Then the solution was taken out, naturally cooled to room temperature, and left to stand until insoluble matter no longer appeared, and KOH was added to adjust the pH value to 12;

[0060] Expose the solution directly to the system, place it in a clean, pollution-free, air-free environment, and let it stand for 10 days at a reaction temperature of 45°C;

[0061] After 10 days, some smaller crystals formed on the white insoluble matter at the bottom of the container, and the cr...

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Abstract

The invention relates to a large size hydrate potassium borate nonlinear optical crystal, the preparation and use thereof. The formula of the crystal is: K3B3O6.4H2O, which belongs to rhombic system, the space group is Pna2(1), and the molecular weight is 317.79. The preparation contains the following steps of: based on an aqua-solution method, slowly volatiling the water content for 3-60 days to obtain the crystal, selecting the crystal with better quality as seed crystal, lowering temperature proceedingly or maintaining the constant temperature so as to obtain the large size hydrate potassium borate nonlinear centimetre-sized optical crystal. The nonlinear optical effect of the crystal is 0.5 times than that of the KDP crystal, the transparent optical band is 190nm-2650nm. The growth process of the crystal is simple in operation and low in cost. The reagents used in the preparation are all inorganic materials, and have advantages of low toxicity, short growth period, stable physicochemical properties. Accordingly, the nonlinear optical crystal of the invention can be abroadly applied in nonlinear optical devices such as frequency doubler, optical parametric oscillator or the like.

Description

technical field [0001] The invention relates to an inorganic nonlinear optical crystal, which belongs to the field of inorganic chemistry, and also belongs to the field of material science and optics. Background technique [0002] Nonlinear optical effects originate from the interaction between laser and medium. When the laser propagates in a medium with non-zero second-order polarizability, nonlinear optical effects such as frequency doubling, sum frequency, difference frequency, and optical parametric amplification will occur. Using the second-order nonlinear optical effect of crystals, nonlinear optical devices such as second-harmonic generators, frequency converters, and optical parametric oscillators can be made. They are widely used in many fields, such as laser technology, atmospheric monitoring, and national defense. It has important application value. After decades of exploration and research, nonlinear optical crystal materials have achieved fruitful results, esp...

Claims

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Application Information

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IPC IPC(8): C30B7/08C30B7/14C30B29/22G02F1/355
Inventor 潘世烈王智蓉韩健王吉德
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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