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Nonlinear optical crystal of potassium borate chloride compound and preparation method as well as application thereof

A technology of nonlinear optics and potassium chloroborate, applied in the field of nonlinear optical crystals of compound potassium chloroborate and its preparation and application

Active Publication Date: 2010-12-15
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

Since there is no laser crystal that directly outputs deep ultraviolet wavelengths, the key problem to solve the solid-state deep ultraviolet laser source is the development and application of NLO frequency conversion crystals in the ultraviolet band. After a lot of research and experiments, we have discovered new non- The linear crystal KBOCl can directly realize the quadrupling frequency output of 1064nm

Method used

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  • Nonlinear optical crystal of potassium borate chloride compound and preparation method as well as application thereof
  • Nonlinear optical crystal of potassium borate chloride compound and preparation method as well as application thereof
  • Nonlinear optical crystal of potassium borate chloride compound and preparation method as well as application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] According to the reaction formula: K 2 O+KCl+6H 3 BO 3 →K 3 B 6 o 10 Cl+9H 2 O↑synthetic K 3 B 6 o 10 Cl compounds;

[0040] Will K 2 O, KCl, H 3 BO 3 Put it into a mortar with a molar ratio of 1:1:6, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, put it into a muffle furnace, slowly raise the temperature to 350°C, keep the temperature for 24 hours, and wait for cooling Finally, take out the crucible, the sample is relatively loose at this time, then take out the sample and grind it again evenly, then raise the temperature to 600°C, keep the temperature at a constant temperature for 24 hours, cool to room temperature, grind the sample fully, then raise the temperature to 720°C, keep the temperature at a constant temperature for 48 hours, take it out, put it Slightly grind in a mortar to get completely sintered K 3 B 6 o 10 Cl compound single-phase polycrystalline powder, the product is subjected to X-ray ...

Embodiment 2

[0047] According to the reaction formula: 2KNO 3 +KCl+6H 3 BO 3 →K 3 B 6 o 10 Cl+NO 2 ↑+NO↑+9H 2 O↑+O 2 ↑Synthetic K 3 B 6 o 10 Cl compounds;

[0048] Will KNO 3 , KCl, H 3 BO 3 Weigh the raw materials directly at a molar ratio of 2:1:6, mix the weighed raw materials with the flux KF-PbO at a molar ratio of 1:4, wherein the molar ratio of KF to PbO is 2:1, and put it into a Φ80mm× In a platinum crucible with an opening of 80mm, the temperature was raised to 745°C, and the temperature was kept constant for 50 hours to obtain a potassium chloroborate mixed melt;

[0049] Lower the temperature of the mixed melt to 725°C. At this time, quickly extend the seed rod under the liquid surface, slowly lower the temperature to 650°C at a rate of 1°C / h, and lift the seed rod out of the liquid surface. There will be Aggregates, and then lowered to room temperature at a rate of 3°C / h to obtain potassium chloroborate seed crystals;

[0050] Potassium nitrate in the reaction f...

Embodiment 3

[0054] According to the reaction formula: K 2 CO 3 +KCl+6H 3 BO 3 →K 3 B 6 o 10 Cl+CO 2 ↑+9H 2 O↑7 synthesis K 3 B 6 o 10 Cl compounds;

[0055] Will K 2 CO 3 , KCl, H 3 BO 3 Put it into a mortar with a molar ratio of 1:1:6, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, put it into a muffle furnace, slowly raise the temperature to 350°C, keep the temperature for 24 hours, and wait for cooling Finally, take out the crucible, the sample is relatively loose at this time, then take out the sample and grind it again evenly, then raise the temperature to 600°C, keep the temperature at a constant temperature for 24 hours, cool to room temperature, grind the sample fully, then raise the temperature to 720°C, keep the temperature at a constant temperature for 48 hours, take it out, put it Pound into a mortar and grind to get K 3 B 6 o 10 Cl compound, carry out X-ray analysis to this product, gained X-ray spectrogram ...

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Abstract

The invention relates to a nonlinear optical crystal of a potassium borate chloride compound and a preparation method as well as application thereof. The chemical formula of the compound is K3B6O10Cl, and the molecular weight of the compound is 377.61. The crystal does not have a symmetric center and belongs to a trigonal system and a space group R3m, and cell parameters are as follows: a=10.0624(14), b=10.0624(14), c=8.8361(18), Z=3, and V=774.8 (2). The powder frequency-doubled effect reaches about 3 times of KDP(KH2PO4), the Mohs hardness is 4-5, and the light transmission waveband is 165nm-3460nm. A solid phase reaction method is used for synthesizing the compound, and a cosolvent method is used for growing the crystal. The crystal has the advantages of simple operation, low cost, large size, short growth cycle, few inclusion enclaves and larger mechanical hardness, and can be cut, polished, processed and saved easily. The crystal is used for generating twofold frequency or three-fold frequency or fourfold frequency or fivefold frequency harmonic light output for laser beams of which the wavelength is 1064nm.

Description

technical field [0001] The invention relates to a compound potassium chloroborate nonlinear optical crystal, a preparation method and application. Background technique [0002] Nonlinear optical crystals are one of the important optoelectronic information functional materials and an important material basis for optoelectronic technology, especially laser technology. Nonlinear optical crystal materials can be used to convert laser frequency and extend the wavelength of laser; to modulate the intensity and phase of laser; to realize holographic storage of laser signal, self-pump phase conjugation to eliminate wavefront domain change, etc. Therefore, nonlinear optical crystal is an indispensable key material in high-tech and modern military technology. All developed countries put it in a priority development position and include it in their respective high-tech development plans as an important strategic measure. Give great attention and support. [0003] Along with the devel...

Claims

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Application Information

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IPC IPC(8): C30B29/10C30B11/00G02F1/355
CPCG02F1/355G02F1/3551C30B29/22C30B9/06C30B29/12C30B9/12
Inventor 潘世烈吴红萍侯雪玲
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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