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Environment-friendly infrared frequency multiplication sulfureous series vitro-ceramic and preparation thereof

An environment-friendly chalcogenide glass technology, applied in the field of nonlinear optical glass-ceramic materials, can solve the problems of glass transition temperature and hardness and other thermodynamic performance degradation, physical and chemical properties, water resistance degradation, etc., to achieve the improvement and reduction of nonlinear optical performance Effects of scattering loss and stabilization of physical and chemical properties

Inactive Publication Date: 2008-08-20
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the content of infrared frequency-doubling crystallites in glass ceramics to improve the nonlinear optical properties of the material, it is necessary to increase the content of AgX in the glass. However, with the increase of the content of halide AgX in the glass, the physical and chemical properties of the glass, especially the water resistance, sharply increase. Coupled with the disconnection effect of halogen elements, the thermodynamic properties such as glass transition temperature and hardness also drop sharply (Optics Express, 2007, 15 (5) 2399-2408; Journal of Materials Science, 2007, 42 (23) :9632-9637)

Method used

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  • Environment-friendly infrared frequency multiplication sulfureous series vitro-ceramic and preparation thereof

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Embodiment 1

[0032] An environment-friendly infrared frequency-doubling chalcogenide glass-ceramic, its composition can be expressed as: 64%GeS 2 36%AgGaS 2 , 64%, and 36% are the molar percentages of each compound.

[0033] The specific preparation method is as follows:

[0034] 1). Select raw materials: according to 64% GeS 2 36%AgGaS 2 , 64%, and 36% are the molar percentages of each compound, select elemental Ge, Ga, Ag and S raw materials for subsequent use, and the purity of each elemental substance is ≥99.99% (mass) respectively;

[0035] 2). Filled with inert gas (such as N 2 ) environment, the elemental Ge, Ga, Ag and S raw materials are mixed, and after grinding and mixing to make batches, they are placed in a container and vacuumed, and the vacuum degree is 10 -5 Pa, then seal the container and place it in a heating device;

[0036] 3). Preparation of basic glass: heat the container containing the batch material in step 2), first slowly (heating rate is less than 3°C / min) ...

Embodiment 2

[0040] An environment-friendly infrared frequency-doubling chalcogenide glass-ceramic, its composition can be expressed according to the chemical formula (the chemical composition formula of the basic glass): 95% GeS 2 5%AgGaS 2 , 95%, 5% are the molar percentages of each compound.

[0041] The specific preparation method is as follows:

[0042] 1). Select raw materials: according to 95% GeS 2 5%AgGaS 2 , 95%, 5% are the molar percentages of each compound, select elemental Ge, Ga, Ag and S raw material for subsequent use, and the purity of each elemental substance is ≥99.99% (mass) respectively;

[0043] 2). Filled with inert gas (such as N 2 ) environment, the elemental Ge, Ga, Ag and S raw materials are mixed, and after grinding and mixing to make batches, they are placed in a container and vacuumed, and the vacuum degree is 10 -4 Pa, then seal the container and place it in a heating device;

[0044] 3). Preparation of basic glass: heat the container containing batch m...

Embodiment 3

[0048] An environment-friendly infrared frequency-doubling chalcogenide glass-ceramic, its composition can be expressed according to the chemical formula (the chemical composition formula of the basic glass): 50% GeS 2 50%AgGaS 2 , 50%, 50% are the mole percentage of each compound.

[0049] The specific preparation method is as follows:

[0050] 1). Select raw materials: according to 50% GeS 2 50%AgGaS 2 , 50%, 50% are the molar percentages of each compound, select elemental Ge, Ga, Ag and S raw material for subsequent use, and the purity of each elemental substance is ≥99.99% (mass) respectively;

[0051] 2).In an environment full of inert gas, mix the elemental Ge, Ga, Ag and S raw materials, grind and mix them to make batches, put them in a container and vacuumize, the vacuum degree is 10 -5 Pa, then seal the container and place it in a heating device;

[0052] 3). Preparation of the basic glass: heat the container containing the batch material in step 2), first slowly...

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Abstract

The invention belongs to a nonlinear optical glass-ceramics material field, which relates to an environment-friendly type infrared frequency doubling chalcogenide glass ceramic, and the environment-friendly type infrared frequency doubling chalcogenide glass-ceramics is characterized in that the component of the glass-ceramics can be expressed as the chemical formula of (100 percent-x) GeS2.xAgGaS2, wherein, x stands for a molar percentage of AgGaS2, and x equals to 5 percent to 52 percent (molar), and (100 percent-x) stands for the molar percentage of GeS2. The environmental-friendly type infrared frequency doubling chalcogenide glass ceramic takes the chalcogenide glass as a fundamental glass, and the chalcogenide glass takes four high pure raw materials Ge, Ga, Ag and S as essential components and is obtained by melting in vacuum, and then the chalcogenide glass carries out nucleation under the condition of being slightly lower than the glass transition temperature and then the temperature is raised to carry out crystallization, and a large amount of environment-friendly type infrared frequency doubling chalcogenide glass ceramics with even-distributed submicron order size and excellent infrared frequency doubling performance are precipitated. The glass ceramic prepared by the invention which is stable in physicochemical performance, good in water resistance and high in glass transition temperature is non-toxic and environment friendly, and the glass ceramic which is provided with wide permeation windows and a frequency doubling performance can be applied for the technical field of an infrared wave band light variable frequency, such as frequency doubling, difference frequency, sum frequency and light parameter oscillation etc,.

Description

technical field [0001] The invention belongs to the field of nonlinear optical glass ceramic materials, in particular to an environment-friendly chalcogenide glass ceramic with wide transmission window and infrared frequency doubling function and a preparation method thereof. Background technique [0002] In laser technology, the laser wavelengths that can be obtained directly by using laser materials are limited, and there are still blank bands from ultraviolet to infrared spectral regions. Using nonlinear optical materials, the limited laser wavelength can be converted into coherent light in a new band through nonlinear optical effects such as frequency doubling, frequency mixing, and optical parametric oscillation. Utilizing this technology can fill the blank spectral region of the laser wavelength emitted by various lasers, and make the lasers more widely used, so it has great application prospects and economic value in the field of laser technology. [0003] In the ran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/02
Inventor 陶海征林常规赵修建
Owner WUHAN UNIV OF TECH
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