| Time-resolved spectroscopy for 5s~('4)D_(7/2) state transitions undergoing electron–ion recombination in femtosecond laser-produced copper plasma |
| |
| 引用本文： | 宋海英,李辉,张艳杰,谷鹏,刘海云,李维,刘勋,刘世炳.Time-resolved spectroscopy for 5s~('4)D_(7/2) state transitions undergoing electron–ion recombination in femtosecond laser-produced copper plasma[J].中国物理 B,2017,26(12):124208-124208. |
| |
| 作者姓名： | 宋海英 李辉 张艳杰 谷鹏 刘海云 李维 刘勋 刘世炳 |
| |
| 作者单位： | 1. Strong-field and Ultrafast Photonics Laboratory, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China;2. Beijing Institute of Space Mechanics and Electricity, China Academy of Space Technology, Beijing 100094, China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 51705009) and the NSAF of China (Grant No. U1530153). |
| |
| 摘 要： | In the femtosecond laser-produced Cu-plasma, the transient transition dynamics that the excited state 5s~('4)D_(7/2) via electron–ion recombination transfers to 4p~('4)F_(9/2)~0(465.11 nm, Λ1 line) and 4p~('4)D_(7/2)~0(529.25 nm, Λ_2 line) states are investigated by using the time-resolved spectroscopy. The occupation number and relevant lifetime of the excited state 5s~('4)D_(7/2),the temporal evolutions of spectral intensities for Λ_1 line and Λ_2 line emissions are demonstrated to be in direct proportion to the employed laser intensity, which reveals the transient features of transition dynamics clearly differing from that resulted in the traditional collision excitation. Furthermore, some unique characteristics for Λ_1 and Λ_2 transitions stemming from electron–ion recombination are examined in detail.
|
| 收稿时间： | 2017-06-21 |
Time-resolved spectroscopy for 5s'4D7/2 state transitions undergoing electron-ion recombination in femtosecond laser-produced copper plasma |
| |
| Institution: | 1. Strong-field and Ultrafast Photonics Laboratory, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China;2. Beijing Institute of Space Mechanics and Electricity, China Academy of Space Technology, Beijing 100094, China |
| |
| Abstract: | In the femtosecond laser-produced Cu-plasma, the transient transition dynamics that the excited state 5s'4D7/2 via electron-ion recombination transfers to 4p'4F9/20 (465.11 nm, Λ1 line) and 4p'4D7/20 (529.25 nm, Λ2 line) states are investigated by using the time-resolved spectroscopy. The occupation number and relevant lifetime of the excited state 5s'4D7/2, the temporal evolutions of spectral intensities for Λ1 line and Λ2 line emissions are demonstrated to be in direct proportion to the employed laser intensity, which reveals the transient features of transition dynamics clearly differing from that resulted in the traditional collision excitation. Furthermore, some unique characteristics for Λ1 and Λ2 transitions stemming from electron-ion recombination are examined in detail. |
| |
| Keywords: | time-resolved spectroscopy recombination transition laser-produced plasma |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
|
