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

A technology of inorganic compounds and compounds, applied in nonlinear optics, polycrystalline material growth, chemical instruments and methods, etc., can solve the problems of low laser damage threshold, inability to meet the requirements of high-power laser development, and high transmittance, achieving 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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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the NLO materials used in the mid-to-far infrared band mainly include AgGaS 2 , AgGaSe 2 and ZnGeP 2 , these materials have large NLO coefficients and high transmittance in the mid-to-far infrared band, but the laser damage threshold is low, which cannot meet the requirements for the development of high-power lasers

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] K (27mg), Ga (142mg) and S (131mg) were prepared and mixed well, then put into a quartz tube and evacuated to 10 - 2 Pa seal the tube, put it into a muffle furnace and slowly heat it to 900 °C, keep it for 10 hours, and then cool it down to 300 °C after 5 °C / h, turn off the muffle furnace and naturally cool it to room temperature, the chemical formula is KGa 5 S 8 of crystals.

Embodiment 2

[0053] K (15mg), Ga (161mg) and S (124mg) were prepared and mixed uniformly, then put into a quartz tube and evacuated to 10 - 3 Pa seal the tube, put it in a muffle furnace and slowly heat it to 1100 °C, keep the temperature for 96 hours, and then cool down to 400 °C after 5 °C / h, turn off the muffle furnace and naturally cool it to room temperature, and the chemical formula is KGa 5 S 8 of crystals.

Embodiment 3

[0055] will K 2 S (26mg) and Ga 2 S 3 (274mg) ingredients and mixed uniformly, put into a quartz tube and evacuated to 10 -2 Pa seal the tube, put it into a muffle furnace and slowly heat it to 1100 °C, keep the temperature for 96 hours, and then cool down to 400 °C after 3 °C / h, turn off the muffle furnace and naturally cool to room temperature to obtain the chemical formula of KGa 5 S 8 of crystals.

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Abstract

The invention discloses a gallium-containing monoclinic inorganic compound crystal. The compound has the following chemical formula: AGa5Q8. Wherein A is selected from one of alkali metal elements; q is selected from one of chalcogenide elements; the gallium-containing monoclinic inorganic compound crystal belongs to a monoclinic system and a P21 space group. The invention further discloses a method for preparing the gallium-containing monoclinic inorganic compound crystal. The invention further discloses application of the material as a nonlinear optical crystal. The gallium-containing monoclinic inorganic compound crystal 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 monoclinic inorganic compound crystal 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 monoclinic inorganic compound crystals, and the application in the optical field. Background technique [0002] The frequency doubling conversion effect of second-order nonlinear optical (NLO) materials (such as frequency doubling, difference frequency, sum frequency, optical parametric oscillation, etc.) has important applications in lidar detection, laser communication, infrared telemetry, infrared navigation, etc. . The ideal NLO material should have a large NLO effect, a wide transmission range, a high laser damage threshold, phase matching, and good chemical and thermal stability. In recent decades, with the exploration and research in the field of NLO crystals, the current NLO oxide materials such as β-BaB 2 O 4 ,LiB 3 O 5 ,KH 2 PO 4 ,KTiOPO 4 , etc., basically meet the requirements of laser develop...

Claims

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Application Information

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IPC IPC(8): C30B29/46C30B1/10C30B28/02G02F1/355
CPCC30B29/46C30B1/10C30B28/02G02F1/3551
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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