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a ho 3+ Doped Fluoroaluminum Glass

A technology of glass and fluorine aluminum, which is applied in glass production and other directions, can solve the problems of limiting the application prospect of fluoride glass, crystallization, moisture absorption, etc., and achieve the effects of excellent chemical stability, simple preparation process and high transparency

Active Publication Date: 2022-07-12
HARBIN ENG UNIV
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Problems solved by technology

However, there are many shortcomings in practical applications: crystallization, moisture absorption, etc., which largely limit the application prospects of fluoride glass

Method used

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  • a ho <sup>3+</sup> Doped Fluoroaluminum Glass
  • a ho <sup>3+</sup> Doped Fluoroaluminum Glass
  • a ho <sup>3+</sup> Doped Fluoroaluminum Glass

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specific Embodiment approach

[0026] 1. Weigh the high-purity raw materials according to the following molar percentage, and mix them well in the grinding bowl; 30AlF3-15 BaF2-(20-x)YF3-25 PbF2-10 MgF2-xHoF3(x=0.2,0.5, 1,1.5,2,3,4,6,8,10)

[0027] 2. Put the mixture in a platinum crucible with a lid, melt it in a glove box high-temperature furnace at 930°C, then place the molten glass on the preheated brass mold and place it in an annealing furnace for annealing at 270°C. The stress created in the glass is removed and the final glass sample is obtained.

[0028] 3. Cut the prepared glass sample according to the size of 10mm*10mm*2mm, and finely polish both sides for testing at room temperature.

[0029] 4. Using 638nm semiconductor laser excitation, set its power to 1.5W, and test the fluorescence spectra of fluoraluminum glass doped with different concentrations of Ho3+ ions at 1.2μm, 2.0μm, 2.4μm, 2.9μm and 3.9μm.

[0030] The selected fluoroaluminum glass composition and Ho 3+ ions, and achieved mid-...

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Abstract

The present invention provides a Ho 3+ The doped fluoroaluminum glass achieves fluorescence emission in the mid-infrared band of 2.4μm under the excitation of 638nm laser pump. The molar percentage of each raw material and doping ion concentration of the glass matrix used is 30AlF 3 ‑15BaF 2 ‑(20‑x)YF 3 ‑25PbF 2 ‑10MgF 2 ‑xHoF 3 (x=0.2, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10). The ion-doped glass prepared by the invention has high transparency, high luminous efficiency, excellent chemical stability, and simple preparation process, and can be used as a gain medium for 2.4 μm mid-infrared band fiber laser. Infrared glass materials and mid-infrared lasers have important reference value and guiding significance.

Description

technical field [0001] The present invention relates to a kind of fluorine aluminum glass, in particular to a kind of Ho 3+ Doped fluoroaluminum glass. Background technique [0002] Mid-infrared (2-20μm) lasers are located in the absorption band of vibrational energy levels of many gas molecules and organic molecules, the so-called "molecular fingerprint region". Therefore, mid-infrared lasers are used in disease diagnosis, trace gas detection, molecular spectroscopy and other fields. It has important application prospects. In addition, there are three transparent "windows" in the space atmosphere, 2-2.7 μm, 3-5 μm, and 8-13 μm, respectively. Therefore, mid-infrared lasers also have important application potential in remote remote sensing, space communication, and military fields. At present, the laser technology in the visible and near-infrared bands has matured, while the mid-infrared laser, especially the mid-infrared laser in the 3 μm and above bands, has developed ver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C4/12C03C6/06
CPCC03C4/12C03C1/00Y02P40/57
Inventor 王鹏飞王顺宾刘墨许念念
Owner HARBIN ENG UNIV
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