Acta Optica Sinica, Volume. 41, Issue 21, 2130001(2021)
Spatial Characteristics of Spectral Intensity of Laser Induced Plasma
Fig. 1. Schematic of radiative transfer acquisition
Fig. 2. Schematic of geometric model
Fig. 3. Simulation spectrum of aluminum target in 391-399 nm wavelength range
Fig. 4. Spatial distributions of particle density and electron temperature in laser-induced plasma for each incident angle. (a)(b) 0°;(c)(d) 30°;(e)(f) 45°;(g)(h) 60°
Fig. 5. Spectral intensity of laser-induced plasma for each incident angle versus detection angle at Al 396.1 nm and 1000 ns delay
Fig. 6. Spectral intensity of laser-induced plasma for each incident angle versus detection angle at Al 396.1 nm and 100 ns delay
Fig. 7. Spectral intensity of laser-induced plasma for each incident angle versus detection angle at Al 396.1 nm and 500 ns delay
Fig. 8. Spatial distribution of particle density and electron temperature in laser-induced plasma for each wavelength. (a)(b) 266 nm; (c)(d) 532 nm; (e)(f) 1064 nm
Fig. 9. Spectral intensity of laser-induced plasma for each wavelength versus detection angle at Al 396.1 nm and 1000 ns delay
Fig. 10. Spectral intensity of laser-induced plasma for each wavelength versus detection angle at Al 396.1 nm and 100 ns delay
Fig. 11. Spectral intensity of laser-induced plasma for each wavelength versus detection angle at Al 396.1 nm and 500 ns delay
Fig. 12. Physical drawing of LIBS system
Fig. 13. Experimental spectrogram
Fig. 14. Spectral intensities at left and right sides of plasma excited by laser with incident angle of 0° versus detection angle at Al 396.1 nm
Fig. 15. Spectral intensity of plasma excited by incident lasers with different incident angles at Al 396.1 nm. (a) 0°;(b) 30°;(c) 45°;(d) 60°
Fig. 16. Spectral intensity of plasma excited by 0° laser versus detection angle under different delay conditions. (a) 100 ns; (b) 500 ns
Fig. 17. Spectral intensity of plasma at Al 396.1 nm versus detection angle
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Chenwei Sun, Yang Bu, Yuanhang Wang, Fang Wu, Yachao Cai, Xiangzhao Wang. Spatial Characteristics of Spectral Intensity of Laser Induced Plasma[J]. Acta Optica Sinica, 2021, 41(21): 2130001
Category: Spectroscopy
Received: Apr. 6, 2021
Accepted: May. 24, 2021
Published Online: Oct. 29, 2021
The Author Email: Bu Yang (buyang@siom.ac.cn)