Instantaneous characteristics of excited atom state 5s' 4D7/2 in the copper plasma induced by laser - 文章详情页

作者：

Liu, S.-B. (Liu, S.-B..) (学者：刘世炳) | Liu, Y.-X. (Liu, Y.-X..) | He, R. (He, R..) | Chen, T. (Chen, T..)

收录：

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摘要：

The　formation　of　excited　atom　state　5s＇　D7/2　and　its　transition　process　in　the　copper　plasma　induced　by　nanosecond　pulse　laser　are　studied　by　the　time-resolved　spectrum　technology.　The　experimental　results　indicate　the　recombination　of　electron　and　ion　and　the　collisions　among　particles　each　play　a　dominent　role　in　forming　excited　atom　state　5s＇　D7/2　at　different　tims　during　its　evolvement.　When　the　collisions　among　particles　are　severe,　the　excited　atom　state　5s＇　D7/2　mainly　transits　to　low　energy　atom　state　4p＇　4F9/2o.　500　ns　after　the　peak　of　laser　pulse　arriving　at　target　surface,　the　excited　state　5s＇　D7/2　transited　to　4p＇　4F9/2o　and　4p＇　4D7/2　with　the　same　probabilities　by　emitting　lines　CuI465.11　nm　and　CuI529.25　nm　respectively.　©　2010　Chin.　Phys.　Soc.

关键词：

Energy transfer; Laser ablation; Plasma radiation; Time-resolved spectrum

作者机构：

[ 1 ] [Liu, S.-B.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Liu, Y.-X.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [He, R.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Chen, T.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

刘世炳
[Liu, S.-B.]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

sbliu@bjut.edu.cn

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