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NaBa4Ga2B8O18Br3 and NaBa4Ga2B8O18Br3 non-linear optical crystal and preparation method and application thereof

A technology of barium sodium bromogallium borate and barium bromogallium borate, which is applied in the field of nonlinear optical crystals, preparation and application of barium sodium bromogallium borate and barium sodium bromogallium borate, and can solve the problems of crystal deliquescence, high price, and long growth cycle And other issues

Inactive Publication Date: 2017-01-04
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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  • NaBa4Ga2B8O18Br3 and NaBa4Ga2B8O18Br3 non-linear optical crystal and preparation method and application thereof
  • NaBa4Ga2B8O18Br3 and NaBa4Ga2B8O18Br3 non-linear optical crystal and preparation method and application thereof
  • NaBa4Ga2B8O18Br3 and NaBa4Ga2B8O18Br3 non-linear optical crystal and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] According to the reaction formula: 7BaCO 3 +2NaBr+BaBr 2 +2Ga 2 o 3 +16H 3 BO 3 →2NaBa 4 Ga 2 B 8 o 18 Br 3 +7CO 2 ↑+24H 2 O ↑ Synthesis of NaBa 4 Ga 2 B 8 o 18 Br 3 Compound:

[0040] BaCO 3 , NaBr, BaBr 2 , Ga 2 o 3 、H 3 BO 3 Put it into a mortar with a molar ratio of 7:2:1:2:16, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, put it into a muffle furnace, and slowly raise the temperature to 550°C, constant temperature 24 hour, take out the crucible after cooling, at this time the sample is relatively loose, take out the sample and grind it evenly, then put it in the crucible, keep the temperature in the muffle furnace at 800°C for another 48 hours, take it out, put it in the mortar and pound it The compound NaBa is obtained by crushing and grinding 4 Ga 2 B 8 o 18 Br 3 , Carry out X-ray analysis to this product, the obtained X-ray spectrogram is consistent with NaBa 4 Ga 2 B 8 o 18 Br ...

Embodiment 2

[0047] According to the reaction formula: 7Ba(NO 3 ) 2 +2NaBr+BaBr 2 +2Ga 2 o 3 +16H 3 BO 3 →2NaBa 4 Ga 2 B 8 o 18 Br 3 +13NO 2 ↑+NO↑+24H 2 O↑+4O 2 ↑ Synthesis of NaBa 4 Ga 2 B 8 o 18 Br 3 Compound:

[0048] Ba(NO 3 ) 2 , NaBr, BaBr 2 , Ga 2 o 3 、H 3 BO 3 The raw materials are directly weighed in a molar ratio of 7:2:1:2:16, and the weighed raw materials are mixed with the flux KBr-PbO in a molar ratio of 1:4, wherein the molar ratio of KBr to PbO is 2:1, Put it into a Φ80mm×80mm open platinum crucible, raise the temperature to 820°C at a rate of 1°C / h, keep the temperature constant for 5 hours to obtain a mixed melt, and then cool down to 700°C;

[0049] Preparation of barium sodium bromide gallium borate seed crystal: Slowly cool the obtained mixed melt to room temperature at a rate of 1.5°C / h, and spontaneously crystallize to obtain barium sodium bromide gallium borate seed crystal;

[0050] Put the crucible containing the obtained mixed melt into...

Embodiment 3

[0054] According to the reaction formula: 7BaO+2NaBr+BaBr 2 +2Ga 2 o 3 +16H 3 BO 3 →2NaBa 4 Ga 2 B 8 o 18 Br 3 +24H 2 O ↑ Synthesis of NaBa 4 Ga 2 B 8 o 18 Br 3 Compound:

[0055] BaO, NaBr, BaBr 2 , Ga 2 o 3 、H 3 BO 3 Put it into a mortar with a molar ratio of 7:2:1:2:16, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, press it tightly, put it into a muffle furnace, and slowly heat up to 550°C, constant temperature for 24 hours, take out the crucible after cooling, at this time the sample is relatively loose, take out the sample and grind it evenly, then put it in the crucible, keep the temperature in the muffle furnace at 800°C for another 48 hours, take it out, put Pound in a mortar and grind to get NaBa 4 Ga 2 B 8 o 18 Br 3 Compound, carry out X-ray analysis to this product, gained X-ray spectrogram and sodium barium bromide gallium borate NaBa 4 Ga 2 B 8 o 18 Br 3 The X-ray spectra obtained by...

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Abstract

The invention relates to NaBa4Ga2B8O18Br3 and NaBa4Ga2B8O18Br3 non-linear optical crystal and a preparation method and application thereof. The chemical formula of the compound is NaBa4Ga2B8O18Br3, and molecular weight is 1,326.00. The compound is prepared by a solid-phase reaction method. The chemical formula of the NaBa4Ga2B8O18Br3 non-linear optical crystal is NaBa4Ga2B8O18Br3, and molecular weight is 1,326.00. The NaBa4Ga2B8O18Br3 non-linear optical crystal has a symcenter and belongs to the tetragonal system. Space group is P4(2)nm, and cell parameters are as follows: a=12.347(17)Angstrom, b=12.347(17)Angstrom, c=6.911(19) Angstrom, V=1,053(3)Angstrom<3>. The powder frequency-doubling effect is 2.1 times higher than powder frequency-doubling effect of KDP(KH2PO4). UV cut-off edge is 334nm. The crystal grows by a high temperature solution method. the NaBa4Ga2B8O18Br3 non-linear optical crystal prepared by the method has high mechanical hardness, is easy to cut, polish and store, and is widely applied in the preparation of non-linear optical devices such as a frequency doubling generator, an upper frequency converter, a lower frequency converter or an optical parameter resonator, etc.

Description

technical field [0001] The invention relates to a compound barium sodium bromide gallium borate and a nonlinear optical crystal of barium bromide gallium borate and its preparation method and application. The chemical formula is NaBa 4 Ga 2 B 8 o 18 Br 3 . Background technique [0002] Using the nonlinear optical effect of crystals, nonlinear optical devices such as second harmonic generators, up and down frequency converters, and optical parametric oscillators can be made. The laser generated by the laser can be frequency converted by nonlinear optical devices, so as to obtain more useful wavelengths of laser light, so that the laser can be used more widely. Among nonlinear optical crystal materials, halogen-containing nonlinear optical crystals are a relatively unique class of crystal materials. Because the halide ions have a great similarity in coordination structure, their physical and chemical properties make it possible for the halide ions to replace each other (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/22C30B11/00G02F1/37G02F1/355G02F1/39
Inventor 潘世烈文明吴红萍
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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