Shihang Chen, Li Liu, Zhiwei Deng, Zhongqi Hao, Jiulin Shi, Xingdao He. Detection of Tantalum-Niobium Ores Using Double-Pulse Laser-Induced Breakdown Spectroscopy Based on a Single Laser[J]. Laser & Optoelectronics Progress, 2023, 60(13): 1330001
- Laser & Optoelectronics Progress
- Vol. 60, Issue 13, 1330001 (2023)
Fig. 1. Schematic diagram of the experimental setup
Fig. 2. Variation of the intensity of the spectral lines with the amount of defocusing. (a) Reflected light; (b) transmitted light
Fig. 3. Variation of SNR with laser pulse energy: (a) Reflected light; (b) transmitted light
Fig. 4. SNR of elemental characteristic spectral line as a function of the delay time under SP- and DP-LIBS
Fig. 5. Elemental spectral line intensities of LIBS under single and double pulse conditions. (a) Ta; (b) Nb
Fig. 6. Basic calibration curves under SP-LIBS and DP-LIBS. (a) Ta II 263.55 nm; (b) Nb II 269.70 nm
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Table 1. Contents of Ta and Nb in tantalum-niobium ore samples
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Table 2. Comparison of quantitative analysis results between SP-LIBS and DP-LIBS
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