• Infrared and Laser Engineering
  • Vol. 50, Issue S2, 20210215 (2021)
Fang Xue1、2, Yongquan Chen1, Yaxuan Duan1, Hui Lin1, and Zhengshang Da1
Author Affiliations
  • 1Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    DOI: 10.3788/IRLA20210215 Cite this Article
    Fang Xue, Yongquan Chen, Yaxuan Duan, Hui Lin, Zhengshang Da. Surface response correction method of light intensity detector in high energy laser measurement[J]. Infrared and Laser Engineering, 2021, 50(S2): 20210215 Copy Citation Text show less

    Abstract

    In order to reduce the influence of the non-uniformity of the surface response of the intensity detector on the near field parameter measurement for the high-energy laser inertial confinement fusion device (ICF), a correction method for the non-uniformity of the light-intensity detector surface response in the near-field parameter measurement of the high-energy laser was proposed. Theoretically, a multi-point calibration linear correction model based on the high-energy laser near-field spatial evaluation factor was deduced, and a non-uniformity automatic correction device on surface response for high-uniformity linear output light intensity detector was designed and built. In order to verify the effectiveness of the proposed method, the surface response non-uniformity of a certain type of scientific-grade CCD was corrected. The surface response modulation degree of the detector was reduced from 1.42 to 1.08, and the contrast was reduced from 0.014 to 0.004. Compared with the two-point calibration method, the uniformity of the light intensity detector after correction using the proposed method in this article was greatly improved. The results show that this method can provide an effective technical means for the correction of the uniformity of the surface response of the light intensity detector in the parameter measurement of the high-energy laser ICF device in my country.
    Fang Xue, Yongquan Chen, Yaxuan Duan, Hui Lin, Zhengshang Da. Surface response correction method of light intensity detector in high energy laser measurement[J]. Infrared and Laser Engineering, 2021, 50(S2): 20210215
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