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Gallium-containing orthogonal inorganic compound crystal, preparation method thereof and application of gallium-containing orthogonal inorganic compound crystal as infrared nonlinear optical crystal material

A technology of inorganic compounds and compounds, applied in the direction of nonlinear optics, polycrystalline material growth, chemical instruments and methods, etc., can solve the problem of low laser damage threshold, unable to meet the requirements of high-power laser development, and unable to apply in the mid-to-far infrared region, etc. problem, to achieve the effect of huge performance improvement and good commercial application prospects

Active Publication Date: 2022-06-03
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After more than 50 years of exploration and research in the field of NLO crystals, second-order NLO oxide materials such as KH 2 PO 4 ,KTiOPO 4 ,β-BaB 2 o 4 , LiB 3 o 5 etc. basically meet the requirements for the development of lasers in the visible and near-infrared bands. At present, the research in the visible and ultraviolet regions is relatively mature; due to the strong absorption of oxide NLO crystal materials, it cannot be applied in the range of mid- and far-infrared regions.
At present, the existing commercial mid-to-far infrared NLO crystal materials have chalcogenide and phosphorus compound AgGaS 2 ,ZnGeP 2 etc., are recognized by the public due to their wide infrared transmission range and high NLO coefficient, but due to the low laser damage threshold or the existence of two-photon absorption, they cannot meet the requirements of high-power laser development

Method used

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  • Gallium-containing orthogonal inorganic compound crystal, preparation method thereof and application of gallium-containing orthogonal inorganic compound crystal as infrared nonlinear optical crystal material
  • Gallium-containing orthogonal inorganic compound crystal, preparation method thereof and application of gallium-containing orthogonal inorganic compound crystal as infrared nonlinear optical crystal material
  • Gallium-containing orthogonal inorganic compound crystal, preparation method thereof and application of gallium-containing orthogonal inorganic compound crystal as infrared nonlinear optical crystal material

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Experimental program
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Effect test

Embodiment 1

[0049] Y (35mg), Ga (137mg), S (100mg) and KCl (30mg) were batched and mixed well, then put into a quartz tube and evacuated to 10 -2 Pa seal the tube, put it in a muffle furnace and slowly heat it to 700 °C, keep it for 72 hours, and then cool it down to 400 °C after 3 °C / h, turn off the muffle furnace and naturally cool to room temperature, the chemical formula is KGa 5 S 8 of crystals.

Embodiment 2

[0051]Y (35mg), Ga (137mg), S (100mg) and KBr (100mg) were batched and mixed well, then put into a quartz tube and evacuated to 10 -2 Pa seal the tube, put it in a muffle furnace and slowly heat it to 700 °C, keep it for 72 hours, and then cool it down to 400 °C after 3 °C / h, turn off the muffle furnace and naturally cool to room temperature, the chemical formula is KGa 5 S 8 of crystals.

Embodiment 3

[0053] Y (42mg), Ga (164mg), S (121mg) and RbCl (172mg) were batched and mixed well, then put into a quartz tube and evacuated to 10 -2 Pa seal the tube, put it in a muffle furnace and slowly heat it to 700 °C, keep it for 72 hours, and then cool it down to 300 °C after 3 °C / h, turn off the muffle furnace and naturally cool to room temperature to obtain the chemical formula of RbGa 5 S 8 of crystals.

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Abstract

The invention discloses a gallium-containing orthogonal inorganic compound crystal. The compound has the following chemical formula: AGa5Q8. Q is selected from one of chalcogenide elements. The gallium-containing inorganic compound belongs to an orthorhombic crystal system and an Iba21 space group. The invention further discloses a method for preparing the gallium-containing orthogonal inorganic compound crystal. The invention further discloses application of the material as a nonlinear optical crystal. The gallium-containing inorganic compound provided by the invention has the excellent characteristics of high laser damage threshold, high frequency multiplication signal intensity and the like. The method for preparing the gallium-containing inorganic compound provided by the invention has the advantages of high yield and simple synthesis process.

Description

technical field [0001] The present application relates to the technical field of crystal synthesis, and relates to the preparation of a series of gallium-containing orthorhombic inorganic compound crystals, and the application in the optical field. Background technique [0002] Second-order nonlinear optics (NLO) crystal materials have important applications in laser communication, laser detection, and laser therapy. After more than 50 years of exploration and research in the field of NLO crystals, second-order NLO oxide materials such as KH 2 PO 4 ,KTiOPO 4 ,β-BaB 2 O 4 ,LiB 3 O 5 It basically meets the requirements for the development of lasers in the visible and near-infrared bands. At present, the research in the visible and ultraviolet regions is relatively mature; due to the strong absorption of oxide NLO crystal materials, it cannot be applied to the mid- and far-infrared region. At present, the existing commercial mid-to-far-infrared NLO crystal materials have...

Claims

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Application Information

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IPC IPC(8): C30B29/46C30B29/64C30B29/66C30B1/10C30B28/02G02F1/355
CPCC30B29/46C30B29/64C30B29/66C30B1/10C30B28/02G02F1/3551Y02P70/50
Inventor 刘彬文郭国聪陈文发姜小明徐忠宁
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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