Preparation method of chalcogenide glass infrared compound eye

A technology of chalcogenide glass and compound eyes, which is applied in the field of refraction infrared micro-optical device preparation, can solve the problems of low energy damage threshold of compound eye structure, high production cost of compound eye preparation process, poor thermal stability, etc., and achieves the advantages of large-scale production and Application, the effect of good surface optical smoothness and low softening temperature

Pending Publication Date: 2022-08-05
XI AN JIAOTONG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0008] The purpose of the preparation method of the chalcogenide glass infrared compound eye proposed by the present invention is to solve the problems of low energy damage threshold, poor thermal stability, poor optical properties, high production cost and low processing efficiency of the compound eye preparation process in the existing compound eye structure. It can meet the needs of high-precision optical systems for device miniaturization and integration, and can also broaden the application range of compound eye structures in the infrared band

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  • Preparation method of chalcogenide glass infrared compound eye
  • Preparation method of chalcogenide glass infrared compound eye
  • Preparation method of chalcogenide glass infrared compound eye

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Embodiment 1

[0062] A preparation method of chalcogenide glass infrared compound eye, comprising the following main steps:

[0063] 1) Sample cleaning: figure 1 , figure 2 The curved K9 glass substrate shown is cleaned in an ultrasonic water bath with acetone, alcohol, and deionized water for 5 minutes in order to remove impurities on the surface of the curved K9 glass substrate, and then dried for use;

[0064] 2) Femtosecond laser modification: use a femtosecond laser beam with a center wavelength of 800nm, a pulse width of 50fs, a repetition frequency of 1KHz, and an energy of 17mW to focus on the surface of the curved K9 glass substrate through a 20x optical focusing lens, focusing on the numerical aperture of the objective lens is 0.45, the curved K9 glass substrate is fixed on the three-dimensional translation stage, and the movement of the three-dimensional translation stage is controlled by a computer program. The action time of the femtosecond laser at each irradiation point is ...

Embodiment 2

[0069] A preparation method of chalcogenide glass infrared compound eye, comprising the following main steps:

[0070]1) Sample cleaning: Clean the curved K9 glass substrate with acetone, alcohol, and deionized water in an ultrasonic water bath for 8 minutes in turn, remove impurities on the surface of the curved K9 glass substrate, and dry it for later use;

[0071] 2) Femtosecond laser modification: use a femtosecond laser beam with a center wavelength of 800nm, a pulse width of 50fs, a repetition frequency of 1KHz, and an energy of 14mW to focus on the surface of the curved K9 glass substrate through a 15x optical focusing lens, focusing on the numerical aperture of the objective lens is 0.35, the curved K9 glass substrate is fixed on the three-dimensional translation stage, and the movement of the three-dimensional translation stage is controlled by a computer program. The action time of the femtosecond laser at each irradiation point is 500ms. A plurality of ablation crat...

Embodiment 3

[0076] A preparation method of chalcogenide glass infrared compound eye, comprising the following main steps:

[0077] 1) Sample cleaning: Clean the curved K9 glass substrate with acetone, alcohol, and deionized water in an ultrasonic water bath for 10 minutes in turn, remove impurities on the surface of the curved K9 glass substrate, and dry it for later use;

[0078] 2) Femtosecond laser modification: use a femtosecond laser beam with a center wavelength of 800nm, a pulse width of 50fs, a repetition frequency of 1KHz, and an energy of 25mW to focus on the surface of the curved K9 glass substrate through a 20x optical focusing lens, focusing on the numerical aperture of the objective lens is 0.6, the curved K9 glass substrate is fixed on the three-dimensional translation stage, and the movement of the three-dimensional translation stage is controlled by a computer program. The action time of the femtosecond laser at each irradiation point is 500ms. A plurality of ablation cra...

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Abstract

The invention relates to a preparation technology of a refraction type infrared micro-optical device, in particular to a preparation method of a chalcogenide glass infrared compound eye. The chalcogenide glass infrared compound eye is prepared by adopting a two-step method, and the method comprises the following steps: 1) cleaning a sample; 2) through femtosecond laser modification, an ablation crater is formed on the surface of the curved K9 glass substrate; 3) performing a curved surface wet etching process, and performing ultrasonic water bath chemical corrosion to obtain a curved surface K9 glass compound eye template; 4) preparing a chalcogenide glass curved compound eye preform through a high-temperature molding process; and 5) preparing the chalcogenide glass infrared compound eye through a high-temperature molding process. The problems that an existing compound eye preparation technology is high in production cost, low in processing efficiency, poor in finished product quality and the like are solved, the prepared infrared glass compound eye has excellent optical performance, infrared thermal imaging and large-view-field imaging can be achieved, the resolution ratio is high, and the infrared glass compound eye can be widely applied to the fields of unmanned driving, robot vision, infrared remote sensing monitoring and the like.

Description

technical field [0001] The invention relates to a technology for preparing a refractive infrared micro-optical device, in particular to a method for preparing a chalcogenide glass infrared compound eye. Background technique [0002] With the development of optical systems, optical devices and optical systems are also developing towards miniaturization, light weight and integration. Micro-optics has gradually entered people's field of vision as a cutting-edge optical branch, and plays a vital role in optical communication, industrial automation, aerospace and advanced defense. Because the infrared band has the characteristics of passive work, online all day, and not easy to be interfered, it has a wide range of application scenarios in biomedical, military and industrial fields. The compound eye structure formed after hundreds of millions of years of natural evolution consists of thousands of sub-eyes arranged on a spherical or spherical-like structure, which is a very preci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/00C03C15/00
CPCG02B3/0012G02B3/0031C03C15/00Y02P40/57
Inventor 陈烽王韶堃杨青
Owner XI AN JIAOTONG UNIV
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