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A kind of compound and its synthetic method and application

A synthesis method and compound technology, applied in the field of nonlinear optical materials, can solve the problems of not meeting the requirements of high-power lasers, small energy bands, and inapplicability, and achieve excellent infrared nonlinear optical performance, performance improvement, and simple steps.

Active Publication Date: 2017-03-01
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These materials contain light elements such as oxygen, so there are vibrational excitations in the infrared band, so they cannot be used in the mid- and far-infrared bands (3-14μm)
At present, the materials used in the infrared band mainly include AgGaS 2 , AgGaSe 2 and ZnGeP 2 , these materials have large nonlinear coefficients and high transmittance in the mid- and far-infrared bands, but have another disadvantage of small energy bands and low laser damage thresholds, which cannot meet the requirements of high-power laser development

Method used

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  • A kind of compound and its synthetic method and application
  • A kind of compound and its synthetic method and application
  • A kind of compound and its synthetic method and application

Examples

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Effect test

Embodiment 1

[0029] After Ga simple substance (95mg), P simple substance (14mg), S simple substance (140mg) and KCl (200mg) are batched and mixed uniformly, put into a quartz tube and evacuate to 10 -4 Torr seals the tube, puts it into the muffle furnace and slowly heats it to 700°C. After 72 hours of heat preservation, it cools down to 400°C after 5°C / h, then turns off the muffle furnace and naturally cools to room temperature, and the chemical formula is [K 3 Cl][Ga 3 P.S. 8 ] as colorless crystals. denoted as sample 1 # .

Embodiment 2

[0031] After Ga simple substance (95mg), P simple substance (14mg), S simple substance (140mg) and KBr (250mg) are batched and mixed uniformly, put into a quartz tube and evacuate to 10 -4 Torr seals the tube, puts it into the muffle furnace and slowly heats it to 700°C. After 96 hours of heat preservation, it cools down to 400°C after 5°C / h, then turns off the muffle furnace and naturally cools to room temperature, and the chemical formula is [K 3 Br][Ga 3 P.S. 8 ] as colorless crystals. denoted as sample 2 # .

Embodiment 3

[0033] After Ga simple substance (95mg), P simple substance (14mg), S simple substance (140mg) and RbCl (300mg) are batched and mixed uniformly, put into a quartz tube and evacuate to 10 -4 Torr seals the tube, puts it into the muffle furnace and slowly heats it to 700°C. After 72 hours of heat preservation, it cools down to 400°C after 5°C / h, then turns off the muffle furnace and naturally cools to room temperature, and the chemical formula is [Rb 3 Cl][Ga 3 P.S. 8 ] as colorless crystals. denoted as sample 3 # .

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Abstract

The invention provides a compound, and a synthetic method and application thereof. The compound comprises a [Ga3PQ8]n<2n-> anionic group, wherein Q=S or Se, and n=1 or 2 or 3 or 4. The synthetic method comprises proportioning gallium, phosphorus, Q (Q=S or Se), AX (A=Na or K or Rb or Cs, X=F or Cl or Br or I), uniformly mixing the raw materials, putting in a quartz tube, performing vacuum-pumping, sealing the tube, putting in a muffle furnace, slowly heating to 600-900 DEG C, keeping warm for at least 1 hour, extinguishing the muffle furnace, and naturally cooling to room temperature, so as to obtain the compound. The compound is a colorless or yellow crystal or powder, possesses excellent infrared nonlinear optical performances and extremely high laser damage threshold. The synthetic method is simple in steps, and the obtained product is high in purity, high in yield and suitable for commercialized production.

Description

technical field [0001] The invention relates to a compound and its synthesis method and application, belonging to the technical field of nonlinear optical materials. Background technique [0002] Second-order nonlinear materials have important applications in the field of optics, and are widely used in laser frequency doubling, optical parametric oscillation, and acoustic and electro-optical devices. In recent years, with the CO 2 With the rapid development of laser radar detection, laser communication, infrared telemetry, infrared navigation and other technologies, the requirements for high-quality and high-performance infrared nonlinear optical materials are becoming more and more urgent. An ideal nonlinear material should have the following properties: (1) large nonlinear effect, (2) transmission in the working band, (3) high laser damage threshold, (4) good phase matching performance, (5) mechanical, chemical, Good thermal stability. [0003] After years of exploratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/14
Inventor 刘彬文郭国聪徐忠宁曾卉一
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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