Nonadiabatic Effect on the Rescattering Trajectories of Electrons in Strong Laser Field Ionization Process

The important features of the rescattering trajectories in strong field ionization process such as the cutoff of the return energy at 3.17Up and that of the final energy at 10Up are obtained, based on the adiabatic approximation in which the initial momentum of the electron is assumed to be zero. We...

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Published inChinese physics letters Vol. 33; no. 9; pp. 29 - 31
Main Author 涂心海 郝小雷 李卫东 胡师林 陈京
Format Journal Article
LanguageEnglish
Published 01.09.2016
Subjects
后向散射
强激光场
散射轨迹
电子
电离过程
简单模型
绝热近似
非绝热效应
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/33/9/093201

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Summary:The important features of the rescattering trajectories in strong field ionization process such as the cutoff of the return energy at 3.17Up and that of the final energy at 10Up are obtained, based on the adiabatic approximation in which the initial momentum of the electron is assumed to be zero. We theoretically study the nonadiabatic effect by assuming a nonzero initial momentum on the rescattering trajectories based on the semiclassical simpleman model. We show that the nonzero initial momentum will modify both the maximal return energy at collision and the final energy after backward scattering, but in different ways for odd and even number of return trajectories. The energies are increased for even number of returns but are decreased for odd number of returns when the nonzero （positive or negative） initial momentum is applied.
Bibliography:11-1959/O4
The important features of the rescattering trajectories in strong field ionization process such as the cutoff of the return energy at 3.17Up and that of the final energy at 10Up are obtained, based on the adiabatic approximation in which the initial momentum of the electron is assumed to be zero. We theoretically study the nonadiabatic effect by assuming a nonzero initial momentum on the rescattering trajectories based on the semiclassical simpleman model. We show that the nonzero initial momentum will modify both the maximal return energy at collision and the final energy after backward scattering, but in different ways for odd and even number of return trajectories. The energies are increased for even number of returns but are decreased for odd number of returns when the nonzero （positive or negative） initial momentum is applied.
Xin-Hai Tu1, Xiao-Lei Hao1, Wei-Dong Li1, Shi-Lin Hu2, Jing Chen2 （ 1 Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006 2 Institute of Applied Physics and Computational Mathematics, Beijing 100088）
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/33/9/093201