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Updated: May 16, 2026

Dependence of Laser-induced Breakdown Spectroscopy Results on Pulse Energies and Timing Parameters Using Soil Simulants
Published on: September 23, 2013
Effects of laser pulse sequence on laser-induced soil plasma emission
Jinzhong Chen1, Zhenyu Chen, Jiang Sun
1College of Physics Science and Technology, Hebei University, Baoding, Hebei 071002, China.
Abstract:
In this study, we investigated the effects of a sequence of laser pulses on the plasma emission intensity, plasma temperature, and electron density of laser-induced soil plasma. The experimental results indicate that the plasma radiation was gradually strengthened as the laser-pulse sequence progressed. The theoretical results show that the spectral line intensity and spectral signal-to-background ratio of the elements Fe, Mn, K, and Ti were strongest for plasma from the sixth laser pulse. These data suggest that repeatedly ablating the same surface position of a soil sample with a sequence of laser pulses can enhance the laser-induced breakdown spectroscopy signal.
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