Effect of elliptical polarizations on nonsequential double ionization in two-color elliptically polarized laser fields

作     者：Tong-Tong Xu Jia-He Chen Xue-Fei Pan Hong-Dan Zhang Shuai Ben and Xue-Shen Liu 徐彤彤;陈佳贺;潘雪飞;张宏丹;贲帅;刘学深

作者机构：t Institute of Atomic and Molecular PhysicsJilin UniversityChangchun 130012China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2018年第27卷第9期

页      面：247-253页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 070203[理学-原子与分子物理] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.61575077) the Natural Science Foundation of Jilin Province,China(Grant No.20180101225JC) 

主　　题：nonsequential double ionization two-color elliptically polarized laser pulse ellipticity momentum distributions 

摘      要：Using the classical ensemble model, we investigate the nonsequential double ionization（NSDI） of Ar and Mg in the two-color elliptically polarized laser pulse for different elliptical polarizations. Numerical results show that for Ar atoms the NSDI yield increases as the ellipticity increases, which is different from the case of Mg atoms. Moreover, the correlated behavior in the correlated electron momentum along the x direction and ion momentum distributions of Ar atoms are influenced by the ellipticity. By statistical analysis of different times, we can conclude that the ellipticity may be responsible for the NSDI processes. The correlated momenta distributions along the x direction at the recollision time are demonstrated and the results show that the travelling time and ellipticity can affect the emitted directions of both electrons.