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Trajectory analysis of few-cycle strong field ionization in two-color circularly polarized fields

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【Author】 Yan Huang;Chaochao Qin;Yizhu Zhang;Xincheng Wang;Tian-Min Yan;Yuhai Jiang;College of Physics and Materials Science, Henan Normal University;Key Laboratory of Opto-electronics Information and Technical Science, Tianjin University;ShanghaiTech University;Shanghai Advanced Research Institute, Chinese Academy of Sciences;University of Chinese Academy of Sciences;

【通讯作者】阎天民;江玉海;

【机构】 College of Physics and Materials Science, Henan Normal University； Key Laboratory of Opto-electronics Information and Technical Science, Tianjin University； ShanghaiTech University； Shanghai Advanced Research Institute, Chinese Academy of Sciences； University of Chinese Academy of Sciences；

【摘要】 Bichromatic circularly polarized fields provide a useful tool to probe the ionization dynamics.In this work, we compare the photoelectron momentum distribution in few-cycle bichromatic field of different helicities.The spectral features are analyzed with semiclassical trajectories derived from the strong field approximation.In particular, the interference fringes in momentum distribution are investigated by tracking the ionization time and tunneling exits of released photoelectrons.Different types of trajectories that contribute to the interference fringes are elucidated.更多还原

【Abstract】 Bichromatic circularly polarized fields provide a useful tool to probe the ionization dynamics.In this work, we compare the photoelectron momentum distribution in few-cycle bichromatic field of different helicities.The spectral features are analyzed with semiclassical trajectories derived from the strong field approximation.In particular, the interference fringes in momentum distribution are investigated by tracking the ionization time and tunneling exits of released photoelectrons.Different types of trajectories that contribute to the interference fringes are elucidated.更多还原

【关键词】 strong field ionization； semiclassical trajectories； bicircularly polarized fields； photoelectron momentum；
【Key words】 strong field ionization； semiclassical trajectories； bicircularly polarized fields； photoelectron momentum；

【基金】 Project supported by the National Natural Science Foundation of China(Grant Nos.11420101003,11604347,11827806,11874368,61675213,and 91636105)

【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2019年09期

【分类号】O463.1
【下载频次】22

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