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Compound sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury, sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury infrared nonlinear optical crystal, and preparation method and application thereof

A technology of nonlinear optics and compounds, applied in chemical instruments and methods, phosphorus compounds from chemically reactive gases, phosphorus sulfur/selenium/tellurium, etc., can solve problems such as low laser damage threshold, and achieve large nonlinear optical effects , good mechanical properties and fast growth

Active Publication Date: 2021-07-02
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

Most of these infrared nonlinear optical materials were developed in the 1970s. Due to some inherent performance defects, such as low laser damage threshold and two-photon absorption near 1 μm, the application in the current high-power laser output field has been restricted. There are great limitations, and it can no longer fully meet the needs of the current laser technology development. It is urgent to develop new infrared nonlinear optical crystal materials with balanced large frequency doubling and high damage threshold.

Method used

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  • Compound sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury, sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury infrared nonlinear optical crystal, and preparation method and application thereof
  • Compound sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury, sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury infrared nonlinear optical crystal, and preparation method and application thereof
  • Compound sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury, sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury infrared nonlinear optical crystal, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] According to the reaction formula 3Cd+2P+8S=Cd 3 P 2 S 8 Preparation of compound Cd 3 P 2 S 8 :

[0059] According to the reaction formula, the source material of Cd is Cd; the source material of P is P, which is mixed with elemental S evenly, ground, put into a quartz tube, and evacuated to 10 -3 Pa and melted and packaged, put it into a muffle furnace, raise the temperature to 550°C at a rate of 5°C / hour, keep the temperature for 96 hours, and lower it to 260°C at a rate of 5°C / hour, take out the sample after cooling, and mash and grind it to obtain Powdered Cd 3 P 2 S 8 compound.

Embodiment 2

[0061] According to the reaction formula 3CdS+2P+5S=Cd 3 P 2 S 8 Preparation of compound Cd 3 P 2 S 8 :

[0062] According to the reaction formula, the Cd source material is CdS, the P source material is P, and after mixing with simple S, they are ground, put into a quartz tube, and evacuated to 10 -3 Pa and melted and packaged, placed in a muffle furnace, raised to 550°C at a rate of 25°C / hour, kept at a constant temperature for 96 hours, and lowered to 260°C at a rate of 8°C / hour, after cooling, the sample was taken out, crushed and ground to obtain Powdered Cd 3 P 2 S 8 compound.

Embodiment 3

[0064] According to the reaction formula 3Cd+P 2 S 5 +3S=Cd 3 P 2 S 8 Preparation of compound Cd 3 P 2 S 8 :

[0065] According to the reaction formula, the Cd source material is Cd; the P source material is P 2 S 5 , mixed evenly with simple substance S, ground, put into a quartz tube, and evacuated to 10 -3 Pa and melted and packaged, put it into a muffle furnace, raise the temperature to 450°C at a rate of 50°C / hour, keep the temperature for 96 hours, and lower it to 260°C at a rate of 15°C / hour, take out the sample after cooling, and mash and grind it to obtain Powdered Cd 3 P 2 S 8 compound.

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Abstract

The invention relates to compound sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury, a sulfur-phosphorus-cadmium and sulfur-phosphorus-mercury infrared nonlinear optical crystal and a preparation method and application thereof, the molecular general formula of the compounds is A3P2S8, in the formula, A is a transition element Cd or Hg, the chemical formula of sulfur-phosphorus-cadmium is Cd3P2S8, and the molecular weight is 655.70; the chemical formula of sulfur phosphorus mercury is Hg3P2S8, and the molecular weight is 920.23; the crystal does not have a symmetric center and belongs to an orthorhombic crystal system, the space group is Aba2, and the cell parameters of Cd3P2S8 are as follows: a = 16.214 (3) angstroms, b = 8.07 (5) angstroms, c = 8.993 (6) angstroms, alpha = beta = gamma = 90 degrees, and Z = 4; and the cell parameters of the Hg3P2S8 are as follows: a is equal to 16.52 (2) angstroms, b is equal to 8.223 (10) angstroms, c is equal to 9.293 (11) angstroms, alpha= beta=gamma is equal to 90 degrees, and Z is equal to 4. The infrared nonlinear optical crystal is prepared by adopting a high-temperature melt spontaneous crystallization method, a chemical vapor transport method, a fluxing agent method or a crucible descent method. The material has the advantages of being large in nonlinear optical effect, wide in light-transmitting wave band, large in hardness, good in mechanical performance, not prone to fragmentation and deliquescence and easy to process and store, and can be used for manufacturing infrared nonlinear optical devices.

Description

technical field [0001] The invention belongs to the field of preparation of infrared nonlinear optical crystals, in particular to compound A 3 P 2 S 8 (A=Cd, Hg) thionophoscadmium, thionophosmercury and thionophosphoric cadmium, thionophosmercuric infrared nonlinear optical crystals, preparation methods and applications. Background technique [0002] Crystals with nonlinear optical effects are called nonlinear optical crystals. Here nonlinear optical effects refer to effects such as frequency doubling, sum frequency, difference frequency, and parametric amplification. Nonlinear optical effects are only possible in crystals that do not have a center of symmetry. Using the nonlinear optical effect of crystals, nonlinear optical devices such as second harmonic generators, up and down frequency converters, and optical parametric oscillators can be made. The laser generated by the laser can be frequency converted by nonlinear optical devices, so as to obtain more useful wave...

Claims

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Application Information

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IPC IPC(8): C01B25/14C30B9/00C30B9/12C30B11/00C30B25/00C30B28/04C30B28/06C30B28/14C30B29/46
CPCC01B25/14C30B29/46C30B28/04C30B9/00C30B25/00C30B28/14C30B9/12C30B11/00C30B28/06C01P2002/72C01P2004/01C01P2006/60
Inventor 潘世烈李俊杰楚羽王鹏
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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