中国物理B ›› 2019, Vol. 28 ›› Issue (9): 93202-093202.doi: 10.1088/1674-1056/ab3444

所属专题: SPECIAL TOPIC — Strong-field atomic and molecular physics

• SPECIAL TOPIC-Strong-field atomic and molecular physics • 上一篇    下一篇

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

Yan Huang(黄燕), Chaochao Qin(秦朝朝), Yizhu Zhang(张逸竹), Xincheng Wang(王新成), Tian-Min Yan(阎天民), Yuhai Jiang(江玉海)   

  1. 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
  • 收稿日期:2019-05-21 修回日期:2019-06-27 出版日期:2019-09-05 发布日期:2019-09-05
  • 通讯作者: Tian-Min Yan, Yuhai Jiang E-mail:yantm@sari.ac.cn;jiangyh@sari.ac.cn
  • 基金资助:

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

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

Yan Huang(黄燕)1, Chaochao Qin(秦朝朝)1, Yizhu Zhang(张逸竹)5, Xincheng Wang(王新成)4, Tian-Min Yan(阎天民)2, Yuhai Jiang(江玉海)1,2,3,4   

  1. 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
  • Received:2019-05-21 Revised:2019-06-27 Online:2019-09-05 Published:2019-09-05
  • Contact: Tian-Min Yan, Yuhai Jiang E-mail:yantm@sari.ac.cn;jiangyh@sari.ac.cn
  • Supported by:

    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.

关键词: strong field ionization, semiclassical trajectories, bicircularly polarized fields, photoelectron momentum

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.

Key words: strong field ionization, semiclassical trajectories, bicircularly polarized fields, photoelectron momentum

中图分类号:  (Multiphoton ionization and excitation to highly excited states)

  • 32.80.Rm
42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift) 33.80.Wz (Other multiphoton processes)