Infrared double-frequency chalcogenide glass ceramics and method for preparing same

A technology of chalcogenide glass and frequency doubling, applied in the field of chalcogenide glass ceramics and its preparation, to achieve the effects of short production cycle, no deliquescence, easy processing and preservation

Inactive Publication Date: 2006-09-27
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, there is no report on infrared frequency-doubling chalcogenide glass ceramics and its preparation technology at home and abroad

Method used

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  • Infrared double-frequency chalcogenide glass ceramics and method for preparing same
  • Infrared double-frequency chalcogenide glass ceramics and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Infrared frequency doubling chalcogenide glass ceramics components by mole percentage are: GeS 2 , 70; Ga 2 S 3 , 15; CdS, 15.

[0028] The specific preparation method is as follows:

[0029] 1). Select raw materials.

[0030] 2). In an environment full of inert gas (such as a glove box), Ga 2 S 3 , CdS and GeS 2The raw materials are mixed, and after being ground and mixed to make batches, they are placed in containers (such as quartz glass tubes, etc.) and vacuumized for 10 -4 ~10 -6 Pa, and then fusing the container (quartz glass tube, etc.) and placing it in a heating device (swing furnace).

[0031] 3). When heating the container containing the batch material in step 2), first slowly raise the temperature to 595°C-605°C, keep it at this temperature for 3 hours, and then slowly raise the temperature to 945°C at a rate of less than 3°C / min. ℃-955℃, heat preservation for 10 hours, after standing for 1 to 3 hours, quench (2 to 5 seconds) the container containin...

Embodiment 2

[0036] Infrared frequency doubling chalcogenide glass ceramics components by mole percentage are: GeS 2 , 90; Ga 2 S 3 , 5; CdS, 5.

[0037] The specific preparation method is as follows:

[0038] 1). Carry out according to 1) of embodiment 1.

[0039] 2). Carry out according to embodiment 1-2).

[0040] 3). When heating the container containing the batch material in step 2), first slowly raise the temperature to 595°C-605°C, keep it at this temperature for 5 hours, and then slowly raise the temperature to 945°C at a rate of less than 3°C / min. ℃-955℃, keep warm for 10 hours, let it stand for 1 to 3 hours, pass the air (10 to 60 seconds) into the container filled with glass liquid, and then immediately put it into the annealing furnace heated to 430℃, after the annealing is completed, slice, Polished to obtain the base glass.

[0041] 4). Put the glass sheet prepared in step 3) into a crystallization furnace with an additional electric field and an inert atmosphere protec...

Embodiment 3

[0043] Infrared frequency doubling chalcogenide glass ceramics components by mole percentage are: GeS 2 , 60; Ga 2 S 3 , 20; CdS, 20.

[0044] The specific preparation method is as follows:

[0045] 1). Carry out according to 1) of embodiment 1.

[0046] 2). Carry out according to embodiment 1-2).

[0047] 3). When heating the container containing the batch material in step 2), first slowly raise the temperature to 595°C-605°C, keep it warm at this temperature for 3-5 hours, and then slowly raise the temperature at a rate of less than 3°C / min To 945°C-955°C, keep warm for 15 hours, let it stand for 1-3 hours, then quench the container containing the glass liquid through ice-water mixture (2-5 seconds), and then immediately put it into the annealing furnace heated to 400°C After the annealing is completed, slice and polish to obtain the basic glass.

[0048] 4). Put the glass sheet prepared in step 3) into a crystallization furnace with an additional electric field and an...

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Abstract

The invention discloses an infrared double frequency sulfur-system devitroceram and preparing method, which is characterized by the following: It is prepared by the raw material of GeS2, Ga2S3 and CdS (GeS250-90%, Ga2S35-25% and CdS 5-25% in mole percent); The total content of raw material is 100 moles. The preparing method comprises the following steps: preparing sulfur-system glass; making heat treatment with the temperature higher than glass transformation temperature and lower than glass crystallization temperature; keep the course of germination and crystallization; sepearating out the a good deal of one-size and sub-micron weighting infrared double frequency crystal; preparing the sulfur-system devitroceram with infrared transmitting and double frequency function. The infrared double frequency sulfur-system devitroceram has wide penetrant window (0.45-12 mum). The invention simplifies the craft, which reduces the production circle.

Description

technical field [0001] The invention belongs to a nonlinear optical glass material and a preparation method, in particular to a 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 range of ultraviolet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/32C03C10/02
Inventor 陶海征顾少轩赵修建肖海燕董国平林常规
Owner WUHAN UNIV OF TECH
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