首页|Steering the energy sharing of electrons in nonsequential double ionization with orthogonally polarized two-color field

Steering the energy sharing of electrons in nonsequential double ionization with orthogonally polarized two-color field

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Using the semiclassical ensemble model,the dependence of relative amplitude for the recollision dynamics in nonse-quential double ionization(NSDI)of neon atom driven by the orthogonally polarized two-color field(OTC)laser field is the-oretically studied.And the dynamics in two typical collision pathways,recollision-impact-ionization(RII)and recollision-excitation with subsequent ionization(RESI),is systematically explored.Our results reveal that the V-shaped structure in the correlated momentum distribution is mainly caused by the RII mechanism when the relative amplitude of the OTC laser field is zero,and the first ionized electrons will quickly skim through the nucleus and share few energy with the second electron.As the relative amplitude increases,the V-shaped structure gradually disappears and electrons are concentrated on the diagonal in the electron correlation spectrum,indicating that the energy sharing after electrons collision is symmetric for OTC laser fields with large relative amplitudes.Our studies show that changing the relative amplitude of the OTC laser field can efficiently control the electron-electron collisions and energy exchange efficiency in the NSDI process.

nonsequential double ionizationcorrelated electron-electron momentum distributionenergy sharing of electronsorthogonally polarized two-color field laser fieldsemiclassical ensemble models

樊光琦、杨志杰、孙烽豪、郑金梅、韩云天、黄明谦、刘情操

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College of Science,Harbin Institute of Technology,Weihai 264209,China

School of Information Science and Engineering,Harbin Institute of Technology,Weihai 264209,China

Harbin Institute of Technology,Weihai 264209,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaExcellent Youth Science Foundation of Shandong Province(Overseas)Fundamental Research Funds for the Central UniversitiesNatural Science Foundation of Shandong Province

12204132123043762022HWYQ-073HIT.OCEF.2022042ZR2023QA075

2024

10.1088/1674-1056/ad4bc0

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(8)