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Simple sample vacuum device for intense laser damage experiment

A vacuum device and strong laser technology, applied in measuring devices, material analysis through optical means, instruments, etc., to achieve high vacuum, low cost, and small volume

Inactive Publication Date: 2021-10-08
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned defects in the existing laser damage experiment sample vacuum device, the present invention provides a simple sample vacuum device for strong laser damage experiment

Method used

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  • Simple sample vacuum device for intense laser damage experiment
  • Simple sample vacuum device for intense laser damage experiment

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Embodiment 1

[0023] like figure 1 As shown, a simple sample vacuum device for strong laser damage experiments, including: lower housing-1, laser incident window-2, upper housing-3, rubber gasket-4, air return valve-5, air pressure Meter-6, exhaust valve-7, vacuum tube-8 and mechanical vacuum pump-9.

[0024] Among them: one side of the lower housing-1 is horizontally equipped with a laser incident window-2, the lower housing-1 and the upper housing-3 are fastened and connected by a buckle mechanism, and there is a rubber gasket-4 between the two housings to ensure the tightness , the sample to be damaged can be placed inside the vacuum box by opening the upper casing-3; the upper part of the upper casing-3 is installed with a return valve-5, a barometer-6 and an exhaust valve-7, and an exhaust valve-7 It is connected to the mechanical vacuum pump-9 through the matching vacuum tube-8; the strong laser is incident on the sample to be damaged inside the box through the laser incident window-...

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Abstract

The invention relates to a simple sample vacuum device for an intense laser damage experiment. The device specifically comprises a lower shell 1, a laser incidence window 2, an upper shell 3, a rubber gasket 4, an air return valve 5, a barometer 6, an air extraction valve 7, a vacuum tube 8 and a mechanical vacuum pump 9. According to the device, the organic glass is used as a shell material, and the transparent optical quartz glass is used as a laser incidence window. According to the device, the damage condition of an internal sample can be directly observed from the outside in the laser damage experiment, the sample can move along with the vacuum device so as to meet the light path change requirement in the experiment, the wavelength range of a damage laser source comprises the far ultraviolet, visible light and near infrared spectrums, and the device has a high laser damage threshold value. According to the invention, the test requirement of a high-energy laser damage test system for the sample vacuum device with high vacuum degree, strong durability and good applicability is met with extremely low price and cost.

Description

technical field [0001] The invention relates to the technical field of laser damage devices, in particular to a simple sample vacuum device for strong laser damage experiments. Background technique [0002] With the development of high-energy laser technology, laser damage and laser damage experiments have become one of the important research directions that scientific and technological workers are increasingly concerned about. [0003] During the laser damage experiment, the high-energy laser will break through the air at high power density, causing the focus spot to become larger and affect the accuracy of the target power density. The target chamber should maintain a high vacuum to ensure the normal progress of the strong laser damage experiment. At the same time, the exposure of the sample to the atmospheric environment will cause measurement errors, including fine particle disturbance, temperature and humidity fluctuations, and increased power loss. Therefore, it is ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/03
CPCG01N21/0317
Inventor 匡登峰刘刚铄徐灿
Owner NANKAI UNIV
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