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Transparent glass with characteristic of emitting intermediate infrared light with wavelength of 3.5 [mu]m and preparation method of transparent glass

A technology of infrared emitting and transparent glass, applied in the field of materials, can solve the problems of reducing luminous intensity, affecting the chemical stability and mechanical strength of materials, etc., and achieves the effects of low phonon energy, mass production, and simple preparation process.

Inactive Publication Date: 2020-12-01
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the hydroxyl (OH) in the matrix material - ) has a strong absorption peak near 3 μm, which will reduce its luminous intensity and affect the chemical stability and mechanical strength of the material

Method used

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  • Transparent glass with characteristic of emitting intermediate infrared light with wavelength of 3.5 [mu]m and preparation method of transparent glass
  • Transparent glass with characteristic of emitting intermediate infrared light with wavelength of 3.5 [mu]m and preparation method of transparent glass
  • Transparent glass with characteristic of emitting intermediate infrared light with wavelength of 3.5 [mu]m and preparation method of transparent glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An Er-doped 3.5 μm luminescent glass, the preparation steps of which are as follows:

[0022] (1) According to the composition, it is 25.5InF 3 -15 ZnF 2 -18 BaF 2 -11.5GaF 3 -8 SrF 2 -12 PbF 2 -5LiF-2LaF 3 -2 YF 3 -1ErF 3 (mol%) take by weighing each required composition raw material of 20g;

[0023] (2) Put each component raw material into an agate mortar and grind and mix evenly, put it into a platinum crucible, and calcine at 850° C. for 2 hours to completely melt the powder mixture;

[0024] (3) Pour molten glass in a molten state onto a copper plate preheated at 240°C in a muffle furnace, heat it at 240°C for 3 hours for stress relief annealing, and then cool to room temperature with the furnace;

[0025] (4) The above steps were all carried out in a glove box filled with nitrogen. Take the sample out of the glove box, grind the sample into a block glass with a size of 10mm×10mm×2mm, and then polish it with a diamond micropowder solution until the surfac...

Embodiment 2

[0028] Composition is 25.5InF 3 -15 ZnF 2 -18 BaF 2 -11.5GaF 3 -8 SrF 2 -12 PbF 2 -5LiF-5ErF 3 (mol%).

[0029] The preparation process is the same as in Example 1.

[0030] image 3 Shown are the emission spectra of the glass samples prepared in Example 1 and Example 2 at λ˜3.5 μm under 635 nm laser pumping. This is the first time Er has been found in fluoride glass samples 3+ Lambda ~ 3.5 μm fluorescence emission of ions. When Er 3+ When the concentration is 5mol%, the emission intensity at λ~3.5μm is relatively large. The ones prepared in the above examples have the characteristics of low phonon energy, good thermal stability, and high fluorescence quenching concentration. Under 635nm laser diode pumping, strong fluorescence in the λ-3.5μm band can be obtained, so indium fluoride glass has the potential for the preparation and application of 3.5μm fiber amplifiers and fiber lasers.

[0031] The indium fluoride rare earth doped glass with 3.5μm mid-infrared emis...

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Abstract

The invention relates to transparent glass with the characteristic of emitting intermediate infrared light with a wavelength of 3.5 [mu]m and a preparation method thereof. A glass substrate of the transparent glass comprise the following chemical components: 25.5InF<3>-15ZnF<2>-18BaF<2>-11.5GaF<3>-8SrF<2>-12PbF<2>-5LiF-2LaF<3>-2YF<3>-1ErF<3> and 25.5InF<3>-15ZnF<2>-18BaF<2>-11.5GaF<3>-8SrF<2>-12PbF<2>-5LiF-5ErF<3>, wherein the sum of the molar percentages of all the compounds is 100%. The prepared glass has the characteristics of high transmittance, good thermal stability, low phonon energy and high fluorescence quenching concentration. Compared with the prior art, strong fluorescence with a wavelength of 3.5 [mu]m can be obtained under 635-nm laser diode pumping, and the transparent glasshas the potential of serving as a gain medium of a 3.5-micron fiber laser; and due to the fact that the preparation process of the transparent glass is simple, batch production can be achieved, and the transparent glass can be widely applied to the field of mid-infrared laser.

Description

technical field [0001] The invention relates to a transparent glass and a preparation method thereof, in particular to a transparent glass with mid-infrared 3.5 μm luminescence characteristics and a preparation method thereof, belonging to the field of materials. Background technique [0002] The 3-5μm mid-infrared band laser has a relatively high transmittance in the atmosphere and is the characteristic absorption band of many molecules. It has broad application prospects in the fields of national defense, satellite remote sensing, and air pollution monitoring. At the same time, mid-infrared fluorescence can also be used Used in drug monitoring, medical diagnosis, laser surgery and other medical fields. It can be seen that mid-infrared band lasers have important applications in many fields, so the development of devices that can produce mid-infrared band laser outputs that meet the application requirements of multiple fields has become a current research hotspot. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/32C03B25/00C03B19/02C03B5/16C03B5/033C03B1/00
CPCC03C3/325C03B1/00C03B5/0334C03B5/16C03B19/02C03B25/00
Inventor 王鹏飞王瑞聪王顺宾贾世杰张集权
Owner HARBIN ENG UNIV
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