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Preparation method of ultrathin chalcogenide glass

A technology of chalcogenide glass and ultra-thin glass, applied in glass manufacturing equipment, glass forming, glass re-molding and other directions, can solve the problems of unsuitable production of chalcogenide glass, affecting the surface quality of ultra-thin glass, etc., and achieve good flexibility and controllable, strong densification effect

Active Publication Date: 2022-01-11
宁波阳光和谱光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overflow down-draw method is not suitable for the production of chalcogenide glass, because the overflow down-draw method needs to use the traction roller to contact the glass, and the contact between the traction roller and the chalcogenide glass will affect the surface quality of ultra-thin glass

Method used

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  • Preparation method of ultrathin chalcogenide glass
  • Preparation method of ultrathin chalcogenide glass
  • Preparation method of ultrathin chalcogenide glass

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0051] In this embodiment, what is to be prepared is a single-layer chalcogenide ultra-thin glass, and the selected chalcogenide glass ingot 4 is Ge 10 As 22 Se 68 ; see Figure 1 to Figure 4 shown. First prepare the prefabricated ultra-thin chalcogenide glass 5, which is made by the following steps:

[0052] Step S1, pre-preparing the extrusion cylinder 1, the extrusion sheet 2 and the pressure rod 3, the extrusion cylinder 1 has a top opening and the bottom of the extrusion cylinder 1 is provided with a rectangular extrusion port 11; the outer surface of the extrusion sheet 2 diameter and the outer diameter of the pressure rod 3 are smaller than the size of the upper opening of the extrusion cylinder 1;

[0053] Step S2, preparing the cleaned and dried chalcogenide glass ingot 4, the outer diameter of the chalcogenide glass ingot 4 is equal to the outer diameter of the extruded sheet 2;

[0054] Step S3, putting the chalcogenide glass ingot 4 into the bottom of the extr...

Embodiment 2

[0096] like Figure 9 As shown, what is to be prepared in this embodiment is double-layer ultra-thin chalcogenide glass, which requires two kinds of chalcogenide glass ingots 4 with different refractive indices. Specifically, the glass ingots are Ge glass with high refractive index. 9 As 23 Se 68 and low-index Ge 10 As 22 Se 68 .

[0097] First of all, it is necessary to prepare prefabricated ultra-thin chalcogenide glass 5, according to steps S1-S6 in Example 1 to finally obtain Ge with a high refractive index 9 As 23 Se 68 Prefabricated ultrathin chalcogenide glass 5 and low-index Ge 10 As 23 Se 68 Prefabricated ultra-thin chalcogenide glass5.

[0098] Specifically, the chalcogenide glass ingot 4 in steps S1-S6 is composed of two materials in equal proportions, which are high refractive index Ge 9 As 23 Se 68 Glass ingot and low refractive index Ge 10 As 23 Se 68 For the glass ingot, the bonding surface of the two materials is a vertical surface, and the ver...

Embodiment 3

[0102] like Figure 10 As shown, the three-layer ultra-thin chalcogenide glass to be prepared in this embodiment requires three kinds of chalcogenide glass ingots 4 with different refractive indices, specifically, Ge 8 As 24 Se 68 , higher refractive index Ge 9 As 23 Se 68 and low-index Ge 10 As 23 Se 68 , the three ultra-thin chalcogenide glasses are referred to as the first ultra-thin chalcogenide glass 8 , the second ultra-thin chalcogenide glass 9 and the third ultra-thin chalcogenide glass 10 .

[0103] First of all, it is necessary to prepare prefabricated ultra-thin chalcogenide glass 5 respectively, and according to steps S1-S6 in Example 1, Ge glass with high refractive index is finally prepared. 8 As 24 Se 68 , higher refractive index Ge 9 As 23 Se 68 and low-index Ge 10 As 23 Se 68 Composition of prefabricated ultra-thin chalcogenide glass 5.

[0104] Specifically, such as Figure 10 As shown, the chalcogenide glass ingot 4 in steps S1-S6 is compos...

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Abstract

The invention provides a preparation method of ultrathin chalcogenide glass. The preparation method comprises the following steps: prefabricated ultrathin chalcogenide glass with an average thickness D is provided; the prefabricated ultra-thin glass is fixed on a lifting device of a wire drawing tower, and the prefabricated ultra-thin glass is put into a wire drawing cavity, so that the lower part of the prefabricated ultra-thin glass is aligned with the center of a heating area of the wire drawing cavity; the temperature in the wire drawing cavity is a preset temperature T1, the prefabricated ultra-thin glass product is heated and softened, and the preset temperature T1 meets the condition that T1 is larger than Tg and smaller than Tx; the temperature of the heating area of the wire drawing cavity is kept at the preset temperature T1, and the prefabricated ultra-thin glass descends relative to the heating area of the wire drawing cavity through a lifting device of the wire drawing tower; in the descending process of the prefabricated ultra-thin glass, the heated and softened ultra-thin glass part leaves the heating area of the drawing tower and is cooled and annealed to the room temperature, and a chalcogenide ultra-thin glass product with the average thickness d is obtained. According to the preparation method, the defects of a micron-level ultrathin chalcogenide glass forming method in the prior art are overcome, and better flexibility and controllability are achieved.

Description

technical field [0001] The invention relates to the technical field of chalcogenide glass, in particular to a preparation method of ultra-thin chalcogenide glass. Background technique [0002] The mid-infrared region (2.5-25μm) has a wide range of applications, and the development of spectroscopy technology in this region requires suitable waveguide media. The transmission of most common quartz glasses is limited to about 2 μm, and the presence of higher phonon energies in quartz glasses also suppresses spectral transmission in the mid- and far-infrared spectral ranges. Chalcogenide glass materials have excellent infrared transparency, have a wide transmission window from visible light to 20 μm, and are characterized by high nonlinear refractive index and low phonon energy. In addition, chalcogenide glass also has a lower transition temperature, better mechanical properties, good chemical stability and thermal stability. [0003] The so-called ultra-thin glass is relative ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/037
CPCC03B23/037Y02P40/57
Inventor 王训四聂秋华徐铁峰沈祥盛俊凯
Owner 宁波阳光和谱光电科技有限公司
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