Nonlinear optical crystal fluorine beryllium carbonate, preparation method thereof and application of nonlinear optical crystal fluorine beryllium carbonate

A nonlinear optics and beryllium carbonate technology, applied in the field of optical materials, can solve the problems of inability to achieve deep ultraviolet region phase matching, performance not exceeded, and inability to achieve deep ultraviolet frequency doubling output, etc., to achieve cutting and polishing, layered Effects of Habit Overcome and Anisotropy Reduction

Inactive Publication Date: 2018-03-09
BEIJING COMPUTATIONAL SCI RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although many new nonlinear optical materials have been synthesized and discovered, most of them cannot achieve phase matching in the deep ultraviolet region, so they cannot achieve effective deep ultraviolet frequency doubling output, and their performance does not exceed KBBF.

Method used

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  • Nonlinear optical crystal fluorine beryllium carbonate, preparation method thereof and application of nonlinear optical crystal fluorine beryllium carbonate
  • Nonlinear optical crystal fluorine beryllium carbonate, preparation method thereof and application of nonlinear optical crystal fluorine beryllium carbonate
  • Nonlinear optical crystal fluorine beryllium carbonate, preparation method thereof and application of nonlinear optical crystal fluorine beryllium carbonate

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preparation example Construction

[0023] The present invention also provides a preparation method of nonlinear optical crystal beryllium fluorocarbonate, comprising:

[0024] Put BeO and fluorine source in CO 2 React in the atmosphere to obtain beryllium fluorocarbonate;

[0025] The fluorine source is HF or BeF 2 .

[0026] According to the present invention, the present invention combines BeO and BeF 2 in CO 2 React in the atmosphere to obtain beryllium fluorocarbonate; wherein, the BeO and BeF 2 The mol ratio is preferably (1~1.5): 1, more preferably (1.2~1.3): 1; The pressure of the carbon dioxide is preferably 1.2~1.5 atmospheres, more preferably 1.3~1.4 atmospheres; the reaction The temperature is preferably 700-1000°C, more preferably 800-900°C; the reaction time is preferably 1-20 hours, more preferably 5-15 hours. In the present invention, the present invention preferably lowers to 600°C at a rate of 1-5°C / 24h after the reaction is completed, and then naturally cools to room temperature to obtai...

Embodiment 1

[0032] Prepare raw materials BeO and BeF 2 , mix it evenly according to the molar ratio of 1.2:1 and put it into the reaction vessel, then put the reaction vessel in a place full of CO 2 In the closed environment of the atmosphere, the atmosphere pressure is 1.3 atmospheres, and the temperature of the reaction vessel is raised to 700-1000°C, after 10-36 hours of heat preservation, and then the temperature is lowered to 600°C at a rate of 1-5°C per day, and the furnace is turned off; After the sample is cooled to room temperature, the sample is washed with water to obtain the millimeter-sized beryllium fluorocarbonate nonlinear optical crystal of the present invention.

[0033] By analyzing and calculating the crystal obtained by the present invention, the results are shown in figure 1 , figure 1 The crystal structure of the beryllium fluorocarbonate prepared in Example 1 of the present invention can be obtained by analysis and calculation. Its crystal structure belongs to th...

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Abstract

The invention provides a nonlinear optical crystal beryllium fluorocarbonate with the chemical formula Be2CO3F2 (abbreviated as BCF). Research shows that the BCF crystal of the invention has stronger nonlinear optical effect and greater birefringence than the KBBF crystal. efficiency, higher frequency doubling conversion efficiency, higher deep UV output power, stronger mechanical properties, better machinability, and higher resistance to laser damage; it can be used as an excellent UV and deep UV nonlinear optics Crystals and birefringent crystals, and can be widely used in various nonlinear optical crystal materials and two-dimensional materials.

Description

technical field [0001] The invention relates to the field of optical materials, in particular to a nonlinear optical crystal beryllium fluorocarbonate and its preparation method and application. Background technique [0002] Nonlinear optical crystal material is an important component of all-solid-state laser technology, which can well expand the spectral range of laser output through frequency conversion, so that it can span a wide range from deep ultraviolet to mid-infrared and even terahertz, so it can be used in national defense , Aerospace, military and industrial production and other aspects have great application potential. So far, commercially available nonlinear optical materials have covered the spectral region from ultraviolet, visible to near-infrared (0.2-2 μm). [0003] Deep ultraviolet nonlinear optical crystals play a very important role in the practical application of deep ultraviolet all-solid-state laser technology. It can convert the specific wavelength...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/10C30B1/10H01S3/109
CPCC30B29/10C30B1/10H01S3/109
Inventor 康雷黄兵林哲帅刘锋
Owner BEIJING COMPUTATIONAL SCI RES CENT
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