中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
外加高压电场下空气中激光等离子体通道寿命研究

文献类型:期刊论文

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作者朱佳斌 ; 季忠刚 ; 邓蕴沛 ; 刘建胜 ; 李儒新 ; 徐至展
刊名光学学报
出版日期2007
卷号27期号:6页码:1059
关键词等离子体 plasma 延长寿命 prolonging of lifetime 外加高压电场 external high-voltage electric field 解离复合率 dissociative recombination rate
ISSN号0253-2239
其他题名Study on Lifetime of a Plasma Channel Induced by Femtosecond Laser Pulses and an External Electric Field
中文摘要通过对飞秒激光在空气中产生的等离子体通道两端外加高压,来研究通道的寿命变化情况。实验得到,当在等离子体通道两端外加高压时(350 kV/m),等离子体通道寿命延长了近3倍。理论模拟和分析结果表明在外加电场条件下,碰撞电离得到增强,吸附作用相对减弱,解离复合系数随着电子平均能量的增加而下降的趋势更为剧烈,这进一步引起了等离子体通道寿命的延长。实验结果与理论分析共同表明了利用外加电场对空气中激光等离子体通道寿命进行延长的可行性。; The lifetime of plasma channel induced by femtosecond laser in air is investigated by adding external high voltage electric field. The lifetime is extended three times when the voltage reaches 350kV/m in our experiment. Theoretical simulation and analysis show that impact ionization is enhanced and attachment effect is reduced in high-voltage electric field. Also, a sharper falloff in dissociative recombination rate will lead to a corresponding marked increase in the lifetime of the plasma channel. Both experimental and theoretical results prove the feasibility of adding external electric field in prolonging the lifetime of plasma channel in air.
学科主题激光技术;激光物理与基本理论
分类号O437
收录类别EI
语种中文
公开日期2009-09-18 ; 2010-10-12
源URL[http://ir.siom.ac.cn/handle/181231/428]  
专题上海光学精密机械研究所_强场激光物理国家重点实验室
推荐引用方式
GB/T 7714
朱佳斌,季忠刚,邓蕴沛,等. 外加高压电场下空气中激光等离子体通道寿命研究, Study on Lifetime of a Plasma Channel Induced by Femtosecond Laser Pulses and an External Electric Field[J]. 光学学报,2007,27(6):1059, 1062.
APA 朱佳斌,季忠刚,邓蕴沛,刘建胜,李儒新,&徐至展.(2007).外加高压电场下空气中激光等离子体通道寿命研究.光学学报,27(6),1059.
MLA 朱佳斌,et al."外加高压电场下空气中激光等离子体通道寿命研究".光学学报 27.6(2007):1059.

入库方式: OAI收割

来源:上海光学精密机械研究所

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