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

作　　者：Yan Huang Chaochao Qin Yizhu Zhang Xincheng Wang Tian-Min Yan Yuhai Jiang 黄燕;秦朝朝;张逸竹;王新成;阎天民;江玉海(College of Physics and Materials Science,Henan Normal University,Xinxiang 453007,China;Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China;University of Chinese Academy of Sciences,Beijing 100049,China;ShanghaiTech University,Shanghai 201210,China;Key Laboratory of Opto-electronics Information and Technical Science,Tianjin University,Tianjin 300072,China)

机构地区：[1]College of Physics and Materials Science,Henan Normal University,Xinxiang 453007,China [2]Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]ShanghaiTech University,Shanghai 201210,China [5]Key Laboratory of Opto-electronics Information and Technical Science,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Physics B》2019年第9期16-21,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11420101003,11604347,11827806,11874368,61675213,and 91636105)

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.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.

关 键 词：strong field IONIZATION SEMICLASSICAL trajectories bicircularly polarized FIELDS PHOTOELECTRON MOMENTUM 

分 类 号：O4[理学—物理]