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Compound fluorine cesium iodate and fluorine cesium iodate nonlinear optical crystal and preparation method and application thereof

A nonlinear optics, cesium fluoride iodide technology, applied in the field of material science, to achieve the effect of simple operation, fast growth, easy to large-size crystals

Inactive Publication Date: 2018-08-28
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

After decades of efforts by scientists from various countries, a large number of nonlinear optical crystal materials and devices with excellent performance have been discovered one after another, and at the same time, the application of laser technology in different fields has been promoted, such as: KH 2 PO 4 (KDP), KTiOPO 4 (KTP), LiB 3 o 5 (LBO),β-BaB 2 o 4 (BBO), KBe 2 BO 3 f 2 (KBBF),a-LiIO 3 with KIO 3 However, due to various reasons, no nonlinear optical crystal materials applicable to all wavelength bands have been obtained, so scientists from all over the world are still paying close attention to the exploration and research of various new nonlinear optical crystals.

Method used

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  • Compound fluorine cesium iodate and fluorine cesium iodate nonlinear optical crystal and preparation method and application thereof
  • Compound fluorine cesium iodate and fluorine cesium iodate nonlinear optical crystal and preparation method and application thereof
  • Compound fluorine cesium iodate and fluorine cesium iodate nonlinear optical crystal and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of cesium fluoroiodate compound by hydrothermal method:

[0034] Will Cs 2 CO 3 and HIO 3 Put it into a mortar with a molar ratio of 0.5:1, mix evenly, and grind thoroughly, then add 2ml of HF solution, mix and dissolve thoroughly, so that the molar ratio of the system Cs 2 CO 3 :HIO 3 : HF=0.5:1:2, then put it into the polytetrafluoroethylene lining of a water heating kettle with a volume of 23mL, screw the water heating kettle tightly and seal it, place it in a constant temperature box, and heat it at a temperature of 10°C / h The heating rate was raised to 180°C, the temperature was kept constant for 1 day, and then the temperature was lowered to room temperature at a rate of 1°C / h, and the hydrothermal kettle was opened to obtain the cesium fluoroiodate compound.

Embodiment 2

[0036] Preparation of cesium fluoroiodate compound by hydrothermal method:

[0037] Will Cs 2 CO 3 and HIO 3 Put it into a mortar with a molar ratio of 2:1, mix evenly, and grind thoroughly, then add 3ml of HF solution, mix and dissolve thoroughly, so that the molar ratio of the system Cs 2 CO 3 :HIO 3 : HF=2:1:3, then put it into the polytetrafluoroethylene liner of a water heating kettle with a volume of 23mL, and tightly seal the water heating kettle, place it in a constant temperature box, and set it at a temperature of 30°C / h The heating rate was increased to 200°C, the temperature was kept constant for 3 days, and then the temperature was lowered to room temperature at a rate of 10°C / h, and the hydrothermal kettle was opened to obtain cesium fluoroiodate compound.

Embodiment 3

[0039] Preparation of cesium fluoroiodate compound by hydrothermal method:

[0040] Will Cs 2 CO 3 and HIO 3 Put it into a mortar with a molar ratio of 3:1, mix evenly, and grind thoroughly, then add 5ml of HF solution, mix and dissolve thoroughly, so that the molar ratio of the system Cs 2 CO 3 :HIO 3 : HF=3:1:5, then put it into the polytetrafluoroethylene lining of a water heating kettle with a volume of 50mL, and tightly seal the water heating kettle, place it in a constant temperature box, and set it at a temperature of 30°C / h The heating rate was raised to 220°C, the temperature was kept constant for 4 days, and then the temperature was lowered to room temperature at a rate of 10°C / h, and the hydrothermal kettle was opened to obtain cesium fluoroiodate compound.

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Abstract

The invention relates to a compound fluorine cesium iodate and fluorine cesium iodate nonlinear optical crystal and a preparation method and application thereof. The chemical formula of a compound isCsIO2F2, and the molecular weight of the compound is 329.81. A hydrothermal method is adopted to prepare the crystal, the chemical formula of the crystal is CsIO2F2, the molecular weight of the compound is 329.81, the crystal belongs to an orthorhombic system, the space group is Pca 21, and according to cell parameters, a is equal to 8.781(3) angstrom, b is equal to 6.3771(18) angstrom, c is equalto 8.868(3) angstrom, alpha is equal to 90 degrees, beta is equal to 90 degrees, gamma is equal to 90 degrees, and V is equal to 496.6(2) angstrom<3>; the ultraviolet transmission cut-off edge is 272nm, the infrared transmission cut-off edge is 12 microns, the band gap is 4.5 eV, and the laser damage threshold value is 20 times that of AgGaS2. The nonlinear optical effect is about 3.5 times thatof KDP. The crystal has the advantages of simplicity in operation, low in cost, free of toxicity, short in growth period, stable in physical and chemical properties and the like, and can be widely applied to nonlinear optical devices such as frequency doubling conversion and optical parametric oscillators.

Description

technical field [0001] The invention relates to an inorganic iodate nonlinear optical crystal. Cesium fluoroiodate belongs to the field of inorganic chemistry, crystallography, material science and optics. Background technique [0002] Nonlinear optical crystal material science is a new discipline developed on the basis of crystal materials. It has the nature of interdisciplinary and is closely related to the development of laser technology. Nonlinear optical crystals have frequency doubling effect (SHG), and have important application value in high-tech fields such as laser frequency conversion, electro-optical modulation, and photorefractive information processing. Nonlinear optical crystals are an important pillar for the development of solid-state laser technology, infrared technology, optical communication technology, and signal processing technology, and play an increasingly important role in scientific research, industry, transportation, national defense, and medical ...

Claims

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Application Information

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IPC IPC(8): C30B29/12C30B7/10G02F1/355
CPCC30B7/10C30B29/12G02F1/3551
Inventor 潘世烈张敏吐沙姑·阿不都吾甫
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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