Xiaoqing FU, Jingge WANG, Bo DAI, Fangyuan LIANG, Jiaxin LIU. Spectral characteristics of laser induced breakdown spectroscopy based on cylindrical focusing lens[J]. Chinese Journal of Quantum Electronics, 2024, 41(4): 578
- Chinese Journal of Quantum Electronics
- Vol. 41, Issue 4, 578 (2024)
Fig. 1. Schematic of the experimental setup
Fig. 2. Topography of laser ablation craters generated by spherical lens focusing (a) and cylindrical lens focusing (b)
Fig. 3. Comparison of characteristic emission spectra between cylindrical lens and spherical lens LIBS of alloy steel samples
Fig. 4. Variation of spectral line intensity and relative standard deviation (RSD) with the number of ablation. (a) Signal intensity of Mn I: 403.08 nm; (b) Signal intensity of Mn II: 259.37 nm; (c) Background intensity of Mn I: 403.08 nm;(d) Background intensity of Mn II: 259.37 nm
Fig. 5. Boltzmann plots under spherical lens focusing and cylindrical lens focusing (a) and stability comparison of plasma temperature (b)
Fig. 6. Lorentz fitting of Fe I atomic spectral lines under spherical lens focusing and cylindrical lens focusing (a) and stability comparison of the corresponding electron density (b)
Fig. 7. Calibation plots obtained for Mn (a), Cr (b) and Ni (c) elements in alloy steel
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Table 1. Standard mass content percentage of Mn, Cr and Ni in alloy steel samples
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Table 2. Spectroscopic parameters of Fe I used in temperature calculation by Boltzmann plot
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Table 3. Comparison of
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