K3B6O10 Br nonlinear optical crystal, preparation and use

A kind of nonlinear optics, potassium bromoborate technology, applied in the field of potassium bromoborate nonlinear optical crystal and flux crystal preparation field, can solve problems such as inability

Active Publication Date: 2009-08-05
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

In order to better test the basic physical properties of the crystal (including nonlinear optical properties), the crystal needs to be a single crystal with a size of several millimeters or even centimeters, so we also use the hydrothermal method, by changing various reaction conditions, Such as the filling degree of the system, the heating / cooling rate, the reaction temperature, the pH value of the solution, and the selection of mineralizers, but it has not yet been possible to obtain a K with a size sufficient for physical property testing. 3 B 6 o 10 Br single crystal report
The crystal cannot be purchased in the market

Method used

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  • K3B6O10 Br nonlinear optical crystal, preparation and use
  • K3B6O10 Br nonlinear optical crystal, preparation and use
  • K3B6O10 Br nonlinear optical crystal, preparation and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Take reaction formula (1) as an example: but not limited to reaction formula (1)

[0037] K 2 O+H 3 BO 3 +KBr→K 3 B 6 o 10 Br+H 2 O synthetic K 3 B 6 o 10 Br compound, concrete operation steps are as follows:

[0038] Will K 2 O, H 3 BO 3 , KBr is put into the mortar in the stoichiometric ratio, mixed and carefully ground, then put into a Φ200mm×200mm open corundum crucible, put into the muffle furnace, slowly raise the temperature to 550°C, keep the temperature for 5 hours, try to drive the gas out After cooling, take out the crucible, grind the sample evenly, then place it in the crucible, keep the temperature in the muffle furnace at 650°C for another 5 hours, wait for the temperature to drop to room temperature, take it out, grind it carefully, and keep the temperature at 700°C for 24 hours again. After cooling, put it into a mortar and grind slightly to get sintered potassium bromoborate K 3 B 6 o 10 Br compound, then carry out X-ray analysis to thi...

Embodiment 2

[0042] Take reaction formula (2) as an example: but not limited to reaction formula (2)

[0043] K 2 CO 3 +B 2 o 3 +KBr→K 3 B 6 o 10 Br+CO 2 Synthetic K 3 B 6 o 10 Br compound, specific operation steps are carried out according to embodiment 1;

[0044] will synthesize K 3 B 6 o 10 Br compound and flux K 2 O Moore than K 3 B 6 o 10 Br:K 2 O=1:3 for mixing, put it into an open platinum crucible of Φ80mm×80mm, heat up to 900°C, keep the temperature for 30 hours and then cool down to 705°C, put the corundum rod bound with platinum wire into the crucible from the small hole on the top of the furnace, Immerse under the liquid surface, keep the temperature constant for 0.5 hours, quickly cool down to 685°C, and then cool down at a rate of 3°C / day. After the crystal growth is complete, let the crystal leave the liquid surface and drop to room temperature at a rate of 30°C / hour to obtain Transparent K with a certain size 3 B 6 o 10 Br crystal;

[0045] K in the ...

Embodiment 3

[0047] Take reaction formula (3) as an example: but not limited to reaction formula (3)

[0048] KOH+H 3 BO 3 +KBr→K 3 B 6 o 10 Br+H 2 O synthetic K 3 B 6 o 10 Br compound, specific operation steps are carried out according to embodiment 1;

[0049] will synthesize K 3 B 6 o 10 The Br compound and the flux LiF were mixed at a molar ratio of 1:3, put into an open platinum crucible of Φ110mm×110mm, heated up to 850°C, kept at a constant temperature for 60 hours and then cooled down to 750°C, and the corundum rod bound with platinum wire was removed from the The small hole on the top of the furnace is put into the crucible to make it contact with the liquid surface, keep the temperature for 1 hour, quickly cool down to 705°C, and then cool down at a rate of 1°C / day. The hourly rate drops to room temperature to obtain K 3 B 6 o 10 Br crystal;

[0050] The KOH in the raw material can use the corresponding K 2 CO 3 、K 2 O. KNO 3 、K 2 C 2 o 4 、CH 3 COOK can be...

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Abstract

The invention relates to a nonlinear optical bromine-contained kalium borate bromate crystal, a preparation method and applications thereof. The crystal has a molecular formula of K3B6O10Br, belongs to a trigonal system, and has a space group of R3m, a molecular weight of 422.07 and a perovskite structure. The crystal adopts a high-temperature solution method, mixes and heats a kalium borate bromate compound and flux and stabilizes the temperature of a mixture which is cooled to a saturation temperature to obtain a mixed solution; a corundum rod bound with Pt wire is put in the mixed solution which is cooled to the saturation temperature to obtain the needed crystal, and the crystal is extracted out of a liquid level and is cooled to a room temperature so as to obtain the nonlinear optical crystal kalium borate bromate. The crystal is twice the nonlinear optical effect of a KDP crystal and has a light-transmitting band of 210nm to 3000nm, is non-deliquescent in air, has short growth period, is easy to cut, polish, process and store and is suitable for making nonlinear optical devices. The nonlinear optical crystal is widely applicable to nonlinear optical devices such as frequency multiplication converters, optical parameter oscillators, and the like.

Description

technical field [0001] The invention relates to a nonlinear optical crystal, its preparation method and application, in particular to a halogen-containing potassium bromoborate nonlinear optical crystal and its preparation method and application of flux crystal. Background technique [0002] In recent years, with the rapid development of nonlinear optics, nonlinear optical crystals have been widely used in optics, communication, medical, military and other fields. The research of nonlinear optical materials has become one of the hot topics in the high-tech field. Ultraviolet and deep ultraviolet light sources have extremely broad application prospects in deep ultraviolet spectroscopy, microelectronics, micromechanical informatics, etc. It is one of the main means to obtain ultraviolet and deep ultraviolet coherent light sources by using nonlinear optical crystals for frequency conversion . [0003] In the continuous research and exploration of nonlinear optical crystal mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/10C30B11/00G02F1/355
Inventor 潘世烈范晓芸
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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