Unlock instant, AI-driven research and patent intelligence for your innovation.
Accelerated Experimental Method for Determining the Laser Irradiation Aging Lifetime of Optical Materials
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of laser irradiation and optical materials, applied in the field of optical materials, can solve the problems of inability to determine the acceleration ratio, time-consuming, waste of manpower and material resources, etc., to save evaluation time and manpower, and improve the effect of irradiation energy density
Inactive Publication Date: 2017-01-11
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF5 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0006] In order to solve the problems of long time consumption and waste of manpower and material resources when testing the service life of optical components, the present invention provides a method for determining the aging of optical materials by laser irradiation. Accelerated Test Methods for Lifetime
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment approach 1
[0019] Specific implementation mode 1. Combination Figure 1 to Figure 5 Describe this embodiment, the accelerated experimental method for determining the laser irradiation aging life of optical materials, this method is realized by the following steps:
[0020] In this embodiment, more precisely, it is the determination of the laser radiation absorption aging coefficient, the process is as follows:
[0021] The first step: process the material into the shape and size required by the laser calorimetry absorption test;
[0022] This step is set to accurately obtain the laser radiation absorption aging value ΔA of the material. In order to obtain an accurate value of ΔA, it is necessary to test the absorptivity of the sample by laser calorimetry. Laser calorimetry is based on the principle of photothermal conversion. During the laser irradiation process, the percentage of laser light absorbed by the sample is obtained by measuring the temperature change curve of the sample due...
specific Embodiment approach 2
[0042] Specific embodiment 2. This embodiment is a specific example of the accelerated experimental method for determining the laser irradiation aging life of optical materials described in specific embodiment 1:
[0043] Taking the fused silica material as an example, the process of determining the absorption aging acceleration ratio curve and the time required for the aging life acceleration experiment is explained under the condition of ArF pulsed laser irradiation with a wavelength of 193nm.
[0044] first step:
[0045] The fused silica material was cut into samples with a diameter of 25 mm and a thickness of 1 mm.
[0046] Step two:
[0047] The surface of the sample was polished on both sides.
[0048] third step:
[0049] Put the sample into the laser calorimeter, according to the measurement method of ISO11551, at 5mJ / cm 2 The sample is irradiated with laser at the energy density of / pulse and the repetition frequency of 1kHz, and the absorptivity of the sample is...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The accelerated experimental method used to determine the laser irradiation aging life of optical materials involves optical materials, and solves the problems of long time consumption and waste of manpower and material resources when testing the service life of optical components. At the same time, the acceleration cannot be determined when the accelerated experimental method is used. The method of the present invention processes the material into the shape and size required by the laser calorimetry absorption test; the surface of the sample is polished and the material is pre-irradiated and irradiated with laser to obtain laser irradiation at different energy densities. Absorption aging coefficient; use the absorption aging coefficient to fit the absorption aging acceleration ratio curve of the material with the change of energy density; according to the actual working conditions, use the absorption aging acceleration ratio curve to calculate the time required for the laser irradiation experiment. By adopting this method, a reasonable accelerated evaluation of laser irradiation aging life can be realized by increasing the irradiation energy density in a relatively short period of time, and the purpose of saving evaluation time, manpower, material resources and other resources can be achieved.
Description
technical field [0001] The invention relates to optical materials, in particular to a method for determining the laser irradiation absorption aging acceleration ratio of optical materials. Background technique [0002] With the continuous progress of practical needs and application technology, various optical or photoelectric systems have increasingly become an indispensable tool in people's daily life. Especially after the emergence of laser, it has become the preferred light source for many optical and optoelectronic systems due to its advantages of high brightness, good monochromaticity, strong directionality and excellent coherence performance. With the widespread use of instruments using lasers as light sources, the performance is also increasing, and more and more stringent requirements are placed on the components in the system. [0003] Take the core equipment used in microfabrication technology—ultraviolet lithography system as an example: in order to enable the sy...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/00
CPCG01N21/00
Inventor 张立超赵灵才玺坤武潇野时光梅林贺健康隋永新杨怀江
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Login to View More 
Login to View More