Ionic-state-resolved electron-electron correlation in strong-field double ionization
Ionic-state-resolved electron-electron correlation in strong-field double ionization
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强场双电离中离子态分辨的电子-电子关联
DOI：
10.1016/j.rinp.2021.104647
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发表时间：
2021
影响因子：
5.3
通讯作者：
Chen Jing
中科院分区：
文献类型：
--
作者：
Li Chan;Liu Jie;Hao XiaoLei;Jia XinYan;Li WeiDong;Chen Jing
本文用S矩阵理论研究了Ne原子在400 nm线偏振激光场作用下的非顺序双电离过程。与波长大于800 nm时的结果不同，电子动量关联分布和Ne 2+的纵向动量分布都对中间离子态的波函数有很强的依赖性.这一观测结果为基于NSDI过程提取离子态波函数信息提供了一种可能的途径。
In this paper, we theoretically investigate the nonsequential double ionization (NSDI) process of Ne induced by 400 nm linearly polarized laser field with a intensity above the recollision threshold using the S-matrix theory. It is unexpected to find that, significantly different from the results for wavelength longer than 800 nm, both the electron momentum correlated distribution and the longitudinal momentum distribution of Ne 2+ exhibit a strong dependence on the wave function of the intermediate ionic state from which the second electron is ionized. This observation provides a potential way to extract the information about the ionic-state wave function based on NSDI process.