An analysis method with equivalent circuit for the electrical effect induced by laser plasma

被引：1

作者：

Jing, Ji Yun ^{[1
]}

Yong, Wang Chun ^{[1
]}

Min, Bian Bao ^{[1
]}

Hua, Li Zhen ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Infermat Phys & Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

MATERIALS PROCESSING TECHNOLOGY, PTS 1-4 | 2011年 / 291-294卷

关键词：

laser plasma; metal probe; electrical signal; equivalent circuit; EARLY-STAGE; ABLATION;

D O I：

10.4028/www.scientific.net/AMR.291-294.3318

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrical effect induced by the laser plasma was investigated with an external tiny probe during Nd:YAG high-power pulse laser ablation on copper target in air. One equivalent circuit for the electrical effect induced by laser plasma was proposed. Based on the equivalent circuit, a new theoretical explanation of the signal generation mechanism is proposed, and the reason that the distribution of electrical signal wave is strongly dependent on the probe distance was discussed. Further the observed signal peak polarity overturn was explained.

引用

页码：3318 / 3321

页数：4

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