The effect of electron initial longitudinal velocity on the non-sequential double ionization process in an elliptically polarized laser field

The effect of electron initial longitudinal velocity on the non-sequential double ionization process in an elliptically polarized laser field
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椭圆偏振激光场中电子初始纵向速度对非顺序双电离过程的影响

DOI:
10.1088/1674-1056/21/8/083304
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发表时间:
2012-08
期刊:
影响因子:
1.7
通讯作者:
Chen Jing
Chen Jing
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Hao Xiao-Lei;Li Wei-Dong;Liu Jie;Chen Jing

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用半经典模型研究了椭圆偏振激光场中隧穿电子的初始纵向速度对非顺序双电离过程的影响。我们发现,非零的初始纵向速度对双电离过程中的单回碰撞(SRC)事件有抑制作用,更具体地说,它导致主极化轴(z轴)方向的关联动量分布的中心部分明显减小,并使单回碰撞在次极化轴(x轴)上的分布变窄。
The effect of initial longitudinal velocity of the tunnelled electron on the non-sequential double ionization (NSDI) process in an elliptically polarized laser field is studied by a semiclassical model. We find that the non-zero initial longitudinal velocity has a suppressing effect on single-return collision (SRC) events in the double ionization process, more specifically, it results in an obvious reduction in the center part of the correlation momentum distributions in the direction of the major polarization axis (z axis) and makes the distribution of single-return collision in the minor polarization axis (x axis) become narrower.
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