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

H_{β}

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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DOI: 10.3788/gzxb20235203.0352124 Cite this Article

Qingxin HUANG, Shanshan LI, Runhua LI, Yuqi CHEN. Determination of Plasma Electron Density from Stark Broadened Profiles of

H_{β}

and Ag I Lines in Spark Discharge Assisted Laser-induced Breakdown Spectroscopy[J]. Acta Photonica Sinica, 2023, 52(3): 0352124 Copy Citation Text

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Fig. 1. Diagram of the experimental setup

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

Fig. 3. Fitting diagram of spectrum line

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

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

Qingxin HUANG, Shanshan LI, Runhua LI, Yuqi CHEN. Determination of Plasma Electron Density from Stark Broadened Profiles of

H_{β}

and Ag I Lines in Spark Discharge Assisted Laser-induced Breakdown Spectroscopy[J]. Acta Photonica Sinica, 2023, 52(3): 0352124

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