Mid-infrared luminescent chalcohalide glass and preparation technology thereof

A technology of sulfur halide glass and infrared luminescence, which is applied in the field of optical materials, can solve the problems of reducing the efficiency of infrared luminescence, and achieve the effect of simple preparation process and low cost

Inactive Publication Date: 2012-06-27
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

Notably, these glass matrices with high phonon energies will enable Er 3+ : 4 I 11 / 2 The energy level depopulates through non-radiative relaxation, which greatly reduces the infrared luminous efficiency

Method used

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  • Mid-infrared luminescent chalcohalide glass and preparation technology thereof
  • Mid-infrared luminescent chalcohalide glass and preparation technology thereof
  • Mid-infrared luminescent chalcohalide glass and preparation technology thereof

Examples

Experimental program
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Effect test

example 1

[0013] Example 1: Ge (99.999%), Ga (99.99%), S (99.999%), CsCl (99.9%), Nd 2 S 3 (99.9%) and Er 2 S 3 (99.9%) high-purity raw materials according to 65GeS 2 -24.7Ga 2 S 3 -10CsCl-0.25Er 2 S 3 -0.05Nd 2 S 3 Weigh the molar components of the molar components, mix them evenly, and put them into a quartz glass tube; connect the open end of the quartz tube to a vacuum system, and pump out the water and air in the quartz tube and the medicine; when the vacuum reaches 10 -2 At Pa, seal the quartz tube with an oxyhydrogen flame; put the sealed quartz tube into a swing furnace, heat up to 900°C and start to swing, and keep it warm for 12 hours to melt it; then, take out the quartz tube and place it vertically Quenched in water for a few seconds to obtain a block of sulfur halide glass. The sulfur halide glass is annealed in a resistance furnace at 280°C to eliminate internal stress.

[0014] Powder X-ray Diffraction Pattern ( figure 1 ) analysis shows that the prepared sulf...

example 2

[0015] Example 2: Ge (99.999%), Ga (99.99%), S (99.999%), CsCl (99.9%), Nd 2 S 3 (99.9%) and Er 2 S 3 (99.9%) high-purity raw materials according to 55GeS 2 -34.7Ga 2 S 3 -10CsCl-0.15Er 2 S 3 -0.15 Nd 2 S 3 After the molar composition ratio of the molar composition is weighed, put it into a quartz glass tube; connect the open end of the quartz tube to a vacuum system, and pump out the water and air in the quartz tube and the medicine; when the vacuum degree reaches 10 -2 At Pa, seal the quartz tube with an oxyhydrogen flame; put the sealed quartz tube into a swing furnace, heat up to 1000°C and start to swing, and keep it warm for 18 hours to melt it; then, take out the quartz tube and place it vertically Quenched in water for a few seconds to obtain a block of sulfur halide glass. The sulfur halide glass is annealed in a resistance furnace at 280°C to eliminate internal stress. After the sample is surface polished, use the FSP920 spectrophotometer equipped with an ...

example 3

[0016] Example 3: Ge (99.999%), Ga (99.99%), S (99.999%), CsCl (99.9%), Nd 2 S 3 (99.9%) and Er 2 S 3 (99.9%) high-purity raw materials according to 50GeS 2 -34.7Ga 2 S 3 -15CsCl-0.1Er 2 S 3 -0.2Nd 2 S 3 After the molar composition ratio of the molar composition is weighed, put it into a quartz glass tube; connect the open end of the quartz tube to a vacuum system, and pump out the water and air in the quartz tube and the medicine; when the vacuum degree reaches 10 -2At Pa, seal the quartz tube with an oxyhydrogen flame; put the sealed quartz tube into a swing furnace, raise the temperature to 950°C, start to swing, and keep it warm for 24 hours to melt it; then, take out the quartz tube and place it vertically Quenched in water for a few seconds to obtain a block of sulfur halide glass. The sulfur halide glass is annealed in a resistance furnace at 280°C to eliminate internal stress. After the sample is surface polished, use the FSP920 spectrophotometer equipped wi...

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Abstract

The invention discloses a 2.7 mu m mid-infrared luminescent chalcohalide glass and a preparation technology thereof. The glass is prepared by using a melt quenching method and comprises the following components expressed in mole percent: 50 to 70 mol% of GeS2, 15 to 35 mol% of Ga2S3, 5 to 15 mol% of CsCl, 0.1 to 0.5 mol% of Er2S3 and 0 to 0.15 mol% of Nd2S3 (wherein the total content of all the components is 100 mol%). Since the mid-infrared luminescent chalcohalide glass has extraordinary infrared transmittance and good thermal and mechanical performances, the mid-infrared luminescent chalcohalide glass is expected to be applied in fabrication of 2.7 mu m mid-infrared lasers.

Description

technical field [0001] The invention relates to the field of optical materials, in particular to a 2.7-micron mid-infrared luminescent sulfur halide glass and its preparation technology. technical background [0002] Er 3+ : 4 I 11 / 2 → 4 I 13 / 2 The mid-infrared emission band is consistent with the maximum absorption peak position of water molecules, and is the most important band in laser medicine, which has been widely concerned by people in recent decades. In biological cell tissue, the water content accounts for at least 70%. However, whether the effect of laser on the human body is to break tissue molecules through photochemical effect or to vaporize tissue to cut cells through thermal effect, tissue cells are required to fully absorb laser energy. Commercialized YAG:Er 3+ Lasers have been widely used in dental surgery, oral surgery, laser cosmetology and other fields. Studies have proved that the mid-infrared laser of this band has a shallow penetration depth to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/32C03C4/12
Inventor 林航陈大钦余运龙杨安平王元生
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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