Observation of Atomic Emission Enhancement by fs-ns Dual-Pulse Laser-Induced Breakdown Spectroscopy
YAN Li-Xin1,2 , ZHANG Yong-Sheng2 , ZHANG Li-Rong2 , LIU Jing-Ru1 , CHENG Jian-Ping1 , Lü Min1
Department of Engineering Physics, Tsinghua University, Beijing 100084
Northwest Institute of Nuclear Technology, PO Box 69 (26), Xi’an 710024
Observation of Atomic Emission Enhancement by fs-ns Dual-Pulse Laser-Induced Breakdown Spectroscopy
YAN Li-Xin1,2 ;ZHANG Yong-Sheng2 ;ZHANG Li-Rong2 ;LIU Jing-Ru1 ;CHENG Jian-Ping1 ;Lü Min1
Department of Engineering Physics, Tsinghua University, Beijing 100084
Northwest Institute of Nuclear Technology, PO Box 69 (26), Xi’an 710024
关键词 ：
32.30.Jc ,
32.80.Fb ,
32.80.Rm ,
42.62.Fi
Abstract ： An experiment of a 500-fs KrF laser pulse incident upon a high density supersonic O2 gas jet synchronously with an ns frequency-doubled Nd:YAG laser pulse is performed in orthogonal configuration. Significant atomic emission enhancement of over forty-fold is observed with an optical multi-channel analyser. The enhancement effect is probably attributed to the different ionization mechanisms between fs and ns laser pulses.
Key words ：
32.30.Jc
32.80.Fb
32.80.Rm
42.62.Fi
出版日期: 2006-01-01
:
32.30.Jc
(Visible and ultraviolet spectra)
32.80.Fb
(Photoionization of atoms and ions)
32.80.Rm
(Multiphoton ionization and excitation to highly excited states)
42.62.Fi
(Laser spectroscopy)
引用本文:
YAN Li-Xin;ZHANG Yong-Sheng;ZHANG Li-Rong;LIU Jing-Ru;CHENG Jian-Ping;Lü Min. Observation of Atomic Emission Enhancement by fs-ns Dual-Pulse Laser-Induced Breakdown Spectroscopy[J]. 中国物理快报, 2006, 23(1): 73-74.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I1/73
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2006, Vol. 23 
