Laser-assisted two-color two-photon double ionization of helium atoms

Zhu Zhizhen; Liu Kai; Zhang XiaofanLi YeWang FengQin MeiyanWang ZheLiao Qing

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Laser-assisted two-color two-photon double ionization of helium atoms

机译：Laser-assisted two-color two-photon double ionization of helium atoms

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摘要

Correlated momentum and kinetic energy distributions of two photoelectrons in laser-assisted two-color two-photon double ionization of helium are investigated by numerically solving a one-plus-one dimensional time-dependent Schrodinger equation (TDSE). We find that the weak assisting laser field can act as an energy transferring field, resulting in burst of double ionization triggered by the intense extreme ultraviolet (XUV) pulse. More importantly, the participation of the laser photon into the double ionization reshapes the correlation patterns in the momentum and kinetic energy distributions. The laser photon can be absorbed by any one of the two electrons, providing two channels that induces destructive interference in the correlated momentum and kinetic energy distributions, which is never found in previous work.

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来源
《Optical and Quantum Electronics》 |2021年第11期|共9页
作者
Zhu Zhizhen; Liu Kai; Zhang XiaofanLi YeWang FengQin MeiyanWang ZheLiao Qing;
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作者单位

Wuhan Inst Technol;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学;
关键词
Strong field laser physics; Photoionization; NONSEQUENTIAL DOUBLE-IONIZATION; DIFFERENTIAL CROSS-SECTIONS; PHOTO-DOUBLE-IONIZATION; FIELD DOUBLE-IONIZATION; DOUBLE PHOTOIONIZATION;

Laser-assisted two-color two-photon double ionization of helium atoms

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