Zhi-feng ZHU, Bo LI, Qiang GAO, Zhong-shan LI. Multiple Discharges-Enhanced Laser-Induced Breakdown Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(8): 2633
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 8, 2633 (2021)
Fig. 1. (a) Experimental setup; (b) Schematic diagram of power supply
Fig. 2. (a) LIBS spectrum of aluminum alloy; (b) The lifetime curves of Al Ⅱ (at ~358 nm) and Mg Ⅱ (at ~279 nm)
Fig. 3. The intensities of Al Ⅱ (at ~358 nm) and Mg Ⅱ (at ~279 nm) versus the delay time
Fig. 4. The waveforms of plasma emission, discharge current and voltage
Fig. 5. Spectra obtained by LIBS and MD-LIBS
Fig. 6. Temporal evolutions of the intensity of Mg Ⅱ (at ~279 nm) obtained by LIBS and MD-LIBS
Fig. 7. Spectral intensities obtained by LIBS and MD-LIBS
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Table 1. The energy released per discharge
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Table 2. The limits of detection of Cu and Mn in aluminum alloy
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