Chinese Journal of Quantum Electronics, Volume. 40, Issue 4, 469(2023)

Pulse duration measurement of deep ultraviolet femtosecond laser

ZHANG Yanlin1...2,5, YOU Libing1,3,5,*, WANG Hongwei1, WANG Qi4, HU Zexiong1,2, FAN Jun1,2, and FANG Xiaodong12 |Show fewer author(s)
Author Affiliations
  • 1Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
  • 2University of Science and Technology of China, Hefei 230026, China
  • 3College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
  • 4School of Electronic and Applied Physics, Hefei University of Technology, Hefei 230009, China
  • 5Shenzhen Shengfang Technology Limited Company, Shenzhen 518173, China
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    In order to accurately measure the pulse width of 193 nm deep ultraviolet femtosecond laser, a pulse width measurement system was designed and built based on the two-photon fluorescence effect of calcium fluoride. The square dependent relationship of the two-photon fluorescence signal on incident laser intensity confirms the reliability of the two-photon fluorescence signal. The numerical calibration of the CCD detection system is carried out using insertion method, and the obtained time scale correspongding to a single pixel is 7.35 fs. In single-shot pulse measurement, the pulse width of 193 nm deep ultraviolet femtosecond laser is measured to be 476.1 fs, which is basically consistent with the result obtained through measurement and calculation using spectroscopy.

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    Yanlin ZHANG, Libing YOU, Hongwei WANG, Qi WANG, Zexiong HU, Jun FAN, Xiaodong FANG. Pulse duration measurement of deep ultraviolet femtosecond laser[J]. Chinese Journal of Quantum Electronics, 2023, 40(4): 469

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    Paper Information

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    Received: Mar. 15, 2021

    Accepted: --

    Published Online: Aug. 22, 2023

    The Author Email: YOU Libing (youlibing@sztu.edu.cn)

    DOI:10.3969/j.issn.1007-5461.2023.04.005

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