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Acta Photonica Sinica, Volume. 52, Issue 3, 0352124(2023)

Determination of Plasma Electron Density from Stark Broadened Profiles of Hβ and Ag I Lines in Spark Discharge Assisted Laser-induced Breakdown Spectroscopy

Qingxin HUANG, Shanshan LI, Runhua LI, and Yuqi CHEN*
Author Affiliations
  • School of Physics and Optoelectronics, South China University of Technology,Guangzhou 510641, China
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    Diagram of the experimental setup

    Fig. 1. Diagram of the experimental setup

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    Emission spectra of the plasma in SP-LIBS and SD-LIBS

    Fig. 2. Emission spectra of the plasma in SP-LIBS and SD-LIBS

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    Fitting diagram of spectrum line

    Fig. 3. Fitting diagram of spectrum line

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    Plot of electron density in SD-LIBS versus discharge capacitance under different discharge voltages

    Fig. 4. Plot of electron density in SD-LIBS versus discharge capacitance under different discharge voltages

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    Relation between the Stark broadening of Ag I line at 520.91 nm and the plasma electron density

    Fig. 5. Relation between the Stark broadening of Ag I line at 520.91 nm and the plasma electron density

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    Qingxin HUANG, Shanshan LI, Runhua LI, Yuqi CHEN. Determination of Plasma Electron Density from Stark Broadened Profiles of Hβ and Ag I Lines in Spark Discharge Assisted Laser-induced Breakdown Spectroscopy[J]. Acta Photonica Sinica, 2023, 52(3): 0352124

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    Paper Information

    Category: Special Issue for Frontiers and Techniques of Laser Spectroscopy

    Received: May. 12, 2022

    Accepted: Jun. 23, 2022

    Published Online: Jun. 21, 2023

    The Author Email: Yuqi CHEN (chenyuqi@scut.edu.cn)

    DOI:10.3788/gzxb20235203.0352124

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology