I004 Focus point effect on underwater measurement of solid samples using long-short DP-LIBS

摘要

Long-Short Double-Pulse Laser-Induced Breakdown Spectroscopy(LS-DP-LIBS) was applied to improve the detection ability and measurement accuracy for underwater measurement by the control of the plasma cooling process using the long pulse-width laser radiation. The intensively stable plasma and the enhanced spectral signal were detected using LS-DP-LIBS when comparing the measured results of single-pulse LIBS (SP-LIBS) and LS-DP-LIBS [1-2].