原子与分子物理学报, 2004, 21 (4): 567, 网络出版: 2006-06-11
飞秒激光惰性气体Ar原子多次电离过程的空间分辨研究
Spatial resolved multiple ionization of argon atoms in strong field produced by a femtosecond laser
摘要
使用100飞秒、1014W／cm2的强激光与惰性气体Ar原子相互作用，我们利用飞行时间质谱仪结合Z扫描技术获得了各次电离的Ar原子在激光焦点附近不同位置处强度分布。测量得到的各个不同电离态Arn+(n=1～4)的产额随激光焦点位置变化关系与不同电离态的空间分布理论预言相一致。
Abstract
Noble gas Ar atoms are irradiated by a 100 femtosecond,1014W/cm2 laser field.The mutiple ionized Arn+(n=1-4) from different points near the laser focal point are obtained using a Z-scan technique combined with time-of-flight mass spectrometer.The variation of the measured ion yield of the different charge states of Ar atoms agrees well with a theoretical prediction based on space-dependent volume scaling for different charge states.
胡湛, 金明星, 刘航, 杨景, 丁大军. 飞秒激光惰性气体Ar原子多次电离过程的空间分辨研究[J]. 原子与分子物理学报, 2004, 21(4): 567. 胡湛, 金明星, 刘航, 杨景, 丁大军. Spatial resolved multiple ionization of argon atoms in strong field produced by a femtosecond laser[J]. Journal of Atomic and Molecular Physics, 2004, 21(4): 567.
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