激光与光电子学进展, 2018, 55 (2): 021406, 网络出版: 2018-09-10  

单双脉冲激光诱导击穿非金属等离子体实验对比 下载: 798次

Experimental Comparison of Single and Double Pulse Laser-Induced Breakdowns of Non-Metallic Plasma
作者单位
长春工业大学电气与电子工程学院, 吉林 长春 130012
摘要
通过光谱成像及等离子体监测技术,研究了基于碳(C)元素的激光诱导击穿光谱(LIBS)技术,并对样品的烧蚀质量和重复加热进行了深入研究。研究结果表明,单双脉冲LIBS下的C元素的谱线强度明显不同。双脉冲信号增强的原因不只是烧蚀质量的增加,还在于双脉冲信号再次加热的物理变化使等离子体形成的环境发生了变化。
Abstract
The laser-induced breakdown spectroscopy (LIBS) based on the C element is investigated by the spectroscopic imaging and plasma monitoring techniques, and the ablation quality and repeated heating of the sample are studied in depth. The research results show that the spectral intensities of the C element under single and double pulse LIBS are obviously different. The double pusle signal enhancement is not only attributed to the increase of the ablation mass, but the change of plasma forming environment caused by the physical change of the double-pulse signal reheating.

林晓梅, 高丙川, 林京君. 单双脉冲激光诱导击穿非金属等离子体实验对比[J]. 激光与光电子学进展, 2018, 55(2): 021406. Xiaomei Lin, Bingchuan Gao, Jingjun Lin. Experimental Comparison of Single and Double Pulse Laser-Induced Breakdowns of Non-Metallic Plasma[J]. Laser & Optoelectronics Progress, 2018, 55(2): 021406.

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