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Sulphur-tin-manganese-strontium compound, sulfur-tin-manganese-strontium nonlinear optical crystal, preparation method and application

A nonlinear optics, sulfur tin manganese strontium technology, applied in nonlinear optics, manganese compounds, chemical instruments and methods, etc., can solve the problems of inability to achieve phase matching, poor machining performance, low laser damage threshold, etc. Processing, good mechanical properties, good crystal quality effect

Active Publication Date: 2021-01-22
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they all have their own problems, which limit their application
For example, AgGaS 2 The thermal conductivity of the crystal is small, and the laser damage threshold is low, which limits its power output; AgGaSe 2 The crystal laser damage threshold is low, and the birefringence ratio is small at 1 μm, and phase matching cannot be achieved; ZnGeP 2 The crystal has serious two-photon absorption, so it can only be pumped with a light source with a wavelength of 2 μm or longer, but there is currently a lack of high-power pump sources with similar wavelengths and mature technologies; CdGeAs 2 Crystals are difficult to grow, and Cd and As are highly toxic elements; GaSe crystals have serious layered growth habits, making it difficult to grow high-quality single crystals, and their Mohs hardness is about zero, and their machinability is poor

Method used

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  • Sulphur-tin-manganese-strontium compound, sulfur-tin-manganese-strontium nonlinear optical crystal, preparation method and application
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, prepare powdery Sr 3 MnSn 2 S 8 Compound:

[0042] Using 3SrS+MnS+2SnS 2 =Sr 3 MnSn 2 S 8 The reaction formula is to prepare Sr by solid phase reaction method 3 MnSn 2 S 8 Compound; The SrS is 3.59 grams, the MnS is 0.87 grams, and the SnS 2 is 3.65 grams; that is, SrS:MnS:SnS 2 =0.03mol:0.01mol:0.02mol;

[0043] The specific operation steps are: put the above-mentioned ingredients into a quartz tube coated with a carbon layer after grinding evenly, and then carry out 10 times on the quartz tube -3 Melting package under Pa condition, put it into a muffle furnace with temperature program control, raise the temperature to a maximum temperature of 900°C at a rate of 45°C per hour, then keep it at this temperature for three days, and then cool it down at 10°C per hour The rate is lowered to room temperature, the program is closed, the sample is taken out and ground to powder to obtain the compound Sr 3 MnSn 2 S 8 .

Embodiment 2

[0044] Embodiment 2, prepare powdery Sr 3 MnSn 2 S 8 Compound:

[0045] Using 3SrS+MnS+2Sn+4S=Sr 3 MnSn 2 S 8 The reaction formula is to prepare Sr by solid phase reaction method 3 MnSn 2 S 8 Compound; the SrS is 3.59 grams, the MnS is 0.87 grams, the Sn is 2.37 grams, and the S is 1.28 grams; that is, SrS:MnS:Sn:S=0.03mol:0.01mol:0.02mol:0.04mol ;

[0046] The specific operation steps are: put the above-mentioned ingredients into a quartz tube coated with a carbon layer after grinding evenly, and then carry out 10 times on the quartz tube -3 Melting package under Pa condition, put it into a muffle furnace with temperature program control, raise the temperature to a maximum temperature of 900°C at a rate of 45°C per hour, then keep it at this temperature for three days, and then cool it down at 10°C per hour The rate is lowered to room temperature, the program is closed, the sample is taken out and ground to powder to obtain the compound Sr 3 MnSn 2 S 8 .

Embodiment 3

[0047] Embodiment 3, prepare powdery Sr 3 MnSn 2 S 8 Compound:

[0048] Using 3SrS+Mn+2Sn+5S=Sr 3 MnSn 2 S 8 The reaction formula is to prepare Sr by solid phase reaction method 3 MnSn 2 S 8 Compound; the SrS is 3.59 grams, the Mn is 0.55 grams, the Sn is 2.37 grams, and the S is 1.6 grams; that is, SrS:Mn:Sn:S=0.03mol:0.01mol:0.02mol:0.05mol ;

[0049] The specific operation steps are: put the above-mentioned ingredients into a quartz tube coated with a carbon layer after grinding evenly, and then carry out 10 times on the quartz tube -3 Melting package under Pa condition, put it into a muffle furnace with temperature program control, raise the temperature to a maximum temperature of 900°C at a rate of 45°C per hour, then keep it at this temperature for three days, and then cool it down at 10°C per hour The rate is lowered to room temperature, the program is closed, the sample is taken out and ground to powder to obtain the compound Sr 3 MnSn 2 S 8 .

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Abstract

The invention relates to a sulfur-tin-manganese-strontium compound, a sulfur-tin-manganese-strontium non-linear optical crystal, a preparation method and application of the compound. The chemical formula of the sulfur-tin-manganese-strontium compound is Sr3MnSn2S8, the compound is prepared through a high temperature solid-state method, and the corresponding sulfur-tin-manganese-strontium non-linear optical crystal grows by using a high temperature melt spontaneous crystallization method. Compared with the prior art, the non-linear optical crystal has the advantages that the crystal quality isgood, the transparency is high, the production cost is low, the process is simple, and large-size crystals are easy to obtain; the sulfur-tin-manganese-strontium non-linear optical crystal obtained bythe high-temperature growth method is high in hardness, good in mechanical property, easy to process, not easy to crack, and very stable in air, and has a relatively wide through waveband. The sulfur-tin-manganese-strontium non-linear optical crystal can be used for making non-linear optical devices.

Description

technical field [0001] The invention belongs to the technical field of nonlinear optical crystal materials, and relates to a Sr 3 MnSn 2 S 8 Compound, Sr 3 MnSn 2 S 8 Nonlinear optical crystal and preparation method and application, especially relate to a kind of Sr 3 MnSn 2 S 8 Compound, Sr 3 MnSn 2 S 8 Nonlinear optical crystal, nonlinear optical crystal material Sr 3 MnSn 2 S 8 The synthesis and preparation method of and the application of its single crystal in the manufacture of nonlinear optical devices. Background technique [0002] Mid-to-far infrared coherent light sources with a wavelength range of 3-20 μm, especially tunable infrared lasers in the “atmospheric window” of 3-5 μm and 8-12 μm, have very important applications in both military and civilian applications. For example, in the military, it can be used for laser guidance, infrared laser communication, laser directional infrared interference, laser aiming, infrared remote sensing, infrared lase...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/355C30B29/46C30B11/00C01G45/00
CPCC01G45/006C01P2002/77C30B11/00C30B29/46G02F1/3551
Inventor 梅大江吴远东操汪柱刘闯
Owner SHANGHAI UNIV OF ENG SCI