Inorganic non-linear optical crystal sodium iodobismuthate, and preparation and application thereof

An inorganic and crystal technology, applied in the field of inorganic crystal optical materials, can solve the problems of difficult to withstand high-intensity laser irradiation, low laser damage threshold, harsh synthesis conditions, etc., and achieve stable air, mild experimental conditions, and high raw material utilization. Effect

Active Publication Date: 2019-01-04
WUHAN UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Although they have large second-order nonlinear optical coefficients, their synthesis conditions are harsh, and it is still difficult to grow single crystals with high optical quality and large size.
Moreover, due to their semiconductor properties, their optical bandgap is narrow, which easily leads to two-photon and multi-photon absorption, so the laser damage threshold is generally low, and it is difficult to withstand high-intensity laser irradiation, which makes its application in the field of high-energy laser severely restricted

Method used

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  • Inorganic non-linear optical crystal sodium iodobismuthate, and preparation and application thereof
  • Inorganic non-linear optical crystal sodium iodobismuthate, and preparation and application thereof
  • Inorganic non-linear optical crystal sodium iodobismuthate, and preparation and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 2mmol NaIO 4 , 2mmol NaCl, 0.5mmol Bi 2 o 3 and 3 mmol H 5 IO 6 Add it into a hydrothermal reaction kettle with a volume of 23mL, and then add 3mL of distilled water to make the final concentration of NaCl 0.6mol / L; seal the hydrothermal reaction kettle and put it in a muffle furnace, heat it to 230°C for 3 hours, and react at a constant temperature for 4 Then cool down to room temperature at a cooling rate of 8°C / h; after the reaction, the product is suction filtered and the solid is washed with deionized water and ethanol successively, and dried to obtain the inorganic crystal compound NaBi(IO 3 ) 4 .

Embodiment 2

[0028] 2mmol NaIO 4 , 2mmol NaCl, 0.1mmol Bi 2 o 3 and 2 mmol H 5 IO 6 Add it into a hydrothermal reaction kettle with a volume of 23mL, and then add 3mL of distilled water to make the final concentration of NaCl 0.6mol / L; seal the hydrothermal reaction kettle and put it in a muffle furnace, heat it to 250°C for 3 hours, and react at a constant temperature for 2 Then cool down to room temperature at a cooling rate of 8° C. / h; after the reaction, the product is suction filtered and washed with deionized water and ethanol successively to obtain a solid, and dried to obtain the inorganic crystal compound NaBi(IO 3 ) 4 .

Embodiment 3

[0030] 2mmol NaIO 4 , 2mmol NaCl, 0.2mmol (BiO) 2 CO 3 and 3 mmol HIO 3 Add it into a hydrothermal reaction kettle with a volume of 23mL, and then add 2mL of distilled water to make the final concentration of NaCl 1mol / L; seal the hydrothermal reaction kettle and put it in a muffle furnace, heat it to 210°C for 3 hours, and react at a constant temperature for 4 days Then cool down to room temperature at a cooling rate of 1° C. / h; after the reaction is over, the product is suction-filtered and washed with deionized water and ethanol successively to obtain a solid, and dried to obtain the inorganic crystal compound NaBi(IO 3 ) 4 .

[0031]The frequency doubling performance and phase matching test of the inorganic crystal compound prepared in the present invention are obtained by the Kurtz powder frequency doubling test method. The specific operation steps are as follows: the obtained inorganic crystal compound is firstly ground and sieved into powders of different particle ...

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Abstract

The invention discloses inorganic non-linear optical crystal sodium iodobismuthate, and preparation and application thereof. The chemical formula of the inorganic matter is NaBi(IO3)4, the molecular weight is 931.57, the inorganic matter belongs to a monoclinic system, the crystal space group is Cc, and the cell parameters are as shown in the description; the compound can be obtained through a hydrothermal synthesis method at the temperature of 210 to 250 DEG C, the operation is simple, and the experiment condition is mild; the crystal of the inorganic compound has a relatively high second-order nonlinear optical effect, and phase matching can be realized; and the compound has relatively high transparency in visible-near-infrared light zones and medium-infrared light zones, has relativelylarge band gaps and relatively high thermal stability, and can be used as a nonlinear optical crystal material which can be widely applied to the fields such as optics.

Description

technical field [0001] The invention belongs to the field of inorganic crystal optical materials, and in particular relates to a nonlinear optical crystal bismuth sodium iodate compound, a preparation method of the compound, and its application as a nonlinear optical crystal material. Background technique [0002] Laser technology is another important invention following atomic energy, computer and semiconductor technology in modern times. It has important applications in optical fiber communication, laser spectroscopy, and lidar monitoring. However, the existing laser equipment can only directly generate a limited number of lasers with specific wavelengths, which seriously limits the application of lasers. The discovery of the nonlinear optical effect breaks through the limitation that laser can only be applied at a specific wavelength. Its essence is an optical phenomenon that occurs when the crystal medium is subjected to nonlinear polarization under the irradiation of st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/10C30B7/10G02F1/355
CPCC30B7/10C30B29/10G02F1/3551
Inventor 陈兴国刘宏鸣王晓晓
Owner WUHAN UNIV
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