大气的共线双脉冲激光诱导击穿光谱研究(英文)

• 作 者: 张大成 Ma Xinwen Zhao Dongmei Liu Huiping
• 出 处: IMP & HIRFL Annual Report
• 发表日期: 2012年00期
• 关键词: 激光诱导 understood breakdown 共线 versus 双脉冲 clearly citation

Double-pulse laser-induced breakdown spectroscopy(DP-LIBS)is an effictive method to increase the LIBS signal intensity.However the mechanism of the signal enhancement is not clearly understood till now.In this work,collinear configuration DP-LIBS combining 35mJ 355nm laser and 30mJ 532nm laser in air was studied.The influence of delay time between laser pulses for spectra enhancement was investigated.Fig.1shows the variation of enhancements factor versus the delay time between laser pulses.It can be seen that

Double-pulse laser-induced breakdown spectroscopy (DP-LIBS) is an effictive method to increase the LIBS signal intensity. However the mechanism of the signal enhancement is not well understood now now. This work, collinear configuration DP-LIBS combining 35mJ 355nm laser and 30mJ 532nm laser in air was studied. The influence of delay time between laser pulses for spectra enhancement was investigated. Pig.1shows the variation of enhancements factor versus the delay time between laser pulses. It can be seen that