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

ISSN号：1674-1056
期刊名称：《中国物理B：英文版》
时间：0
分类：O436.3[机械工程—光学工程;理学—光学;理学—物理] TN241[电子电信—物理电子学]
作者机构：[1]Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006, China, [2]) Center for Applied Physics and Technology, Peking University, Beijing 100871, China, [3]Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088, China
相关基金：Project supported by the National Natural Science Foundation of China （Grant Nos. 11074026 and 11074155） and the Program for New Century Excellent Talents in University of the Ministry of Education of China （Grant No. NCET-08-0883）.

作者：郝小雷[1], 李卫东[1], 刘杰[2,3], 陈京[2,3]

关键词：椭圆偏振光, 纵向速度, 电离过程, 激光场, 电子, 半经典模型, NSDI, 抑制效果, non-sequential double ionization, initial longitudinal velocity, elliptically polarized laserfield, single return collision

中文摘要：

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.

英文摘要：

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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