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

doi:10.1088/1674-1056/21/8/083304

中国物理B ›› 2012, Vol. 21 ›› Issue (8): 83304-083304.doi: 10.1088/1674-1056/21/8/083304

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

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

郝小雷^a, 李卫东^a, 刘杰^{b c}, 陈京^{b c}

a Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006, China;
b Center for Applied Physics and Technology, Peking University, Beijing 100871, China;
c Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088, China

收稿日期:2012-02-08 修回日期:2012-03-14 出版日期:2012-07-01 发布日期:2012-07-01
基金资助:
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).

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

Hao Xiao-Lei (郝小雷)^a, Li Wei-Dong (李卫东)^a, Liu Jie (刘杰)^{b c}, Chen Jing (陈京)^{b c}

a Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006, China;
b Center for Applied Physics and Technology, Peking University, Beijing 100871, China;
c Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088, China

Received:2012-02-08 Revised:2012-03-14 Online:2012-07-01 Published:2012-07-01
Contact: Li Wei-Dong, Chen Jing E-mail:wdli@sxu.edu.cn; chen jing@iapcm.ac.cn
Supported by:
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).

摘要/Abstract

摘要： The effect of initial longitudinal velocity of the tunnelled electron on the non-sequential double ionization (NSDI) process in 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 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 narrow.

关键词: non-sequential double ionization, initial longitudinal velocity, elliptically polarized laser field, single return collision

Abstract: The effect of initial longitudinal velocity of the tunnelled electron on the non-sequential double ionization (NSDI) process in 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 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 narrow.

Key words: non-sequential double ionization, initial longitudinal velocity, elliptically polarized laser field, single return collision

中图分类号: (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))

33.80.Rv

34.50.Rk (Laser-modified scattering and reactions)

郝小雷, 李卫东, 刘杰, 陈京. The effect of electron initial longitudinal velocity on non-sequential double ionization process in elliptically polarized laser field[J]. 中国物理B, 2012, 21(8): 83304-083304.

Hao Xiao-Lei (郝小雷), Li Wei-Dong (李卫东), Liu Jie (刘杰), Chen Jing (陈京). The effect of electron initial longitudinal velocity on non-sequential double ionization process in elliptically polarized laser field[J]. Chin. Phys. B, 2012, 21(8): 83304-083304.

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

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

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