中国物理B ›› 2025, Vol. 34 ›› Issue (1): 13202-013202.doi: 10.1088/1674-1056/ad8dbe

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Effect of orbital symmetry on atomic ionization in near-infrared laser fields

Manqi Xu(徐嫚琦)1, Shilin Hu(胡师林)1,2†, Li Guo(郭丽)3, and Jing Chen(陈京)4,5   

  1. 1 Research Center for Advanced Optics and Photoelectronics, Department of Physics, College of Science, Shantou University, Shantou 515063, China;
    2 Key Laboratory of Intelligent Manufacturing Technology of MOE, Shantou University, Shantou 515063, China;
    3 Department of Physics, Shanghai Normal University, Shanghai 200234, China;
    4 Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
    5 Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, Center for Advanced Material Diagnostic Technology, and College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China
  • 收稿日期:2024-08-23 修回日期:2024-10-18 接受日期:2024-11-01 发布日期:2024-12-24
  • 通讯作者: Shilin Hu E-mail:E-mail:shlhu@stu.edu.cn
  • 基金资助:
    Project supported by Li Ka Shing Foundation STUGTIIT Joint Research (Grant No. 2024LKSFG02), the STU Scientific Research Foundation for Talents (Grant Nos. NTF22026, NTF23011, NTF23014, and NTF23036T), the National Basic Research Program of China (Grant No. 2019YFA0307700), and the National Natural Science Foundation of China (Grant Nos. 12074239 and 12274300).

Effect of orbital symmetry on atomic ionization in near-infrared laser fields

Manqi Xu(徐嫚琦)1, Shilin Hu(胡师林)1,2†, Li Guo(郭丽)3, and Jing Chen(陈京)4,5   

  1. 1 Research Center for Advanced Optics and Photoelectronics, Department of Physics, College of Science, Shantou University, Shantou 515063, China;
    2 Key Laboratory of Intelligent Manufacturing Technology of MOE, Shantou University, Shantou 515063, China;
    3 Department of Physics, Shanghai Normal University, Shanghai 200234, China;
    4 Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;
    5 Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, Center for Advanced Material Diagnostic Technology, and College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China
  • Received:2024-08-23 Revised:2024-10-18 Accepted:2024-11-01 Published:2024-12-24
  • Contact: Shilin Hu E-mail:E-mail:shlhu@stu.edu.cn
  • About author:2025-013202-241221.pdf
  • Supported by:
    Project supported by Li Ka Shing Foundation STUGTIIT Joint Research (Grant No. 2024LKSFG02), the STU Scientific Research Foundation for Talents (Grant Nos. NTF22026, NTF23011, NTF23014, and NTF23036T), the National Basic Research Program of China (Grant No. 2019YFA0307700), and the National Natural Science Foundation of China (Grant Nos. 12074239 and 12274300).

摘要: We have performed a comparative study of the photoelectron spectra adopting different initial states (2s or 2p$_0$) of hydrogen atoms in a near-infrared laser pulse by using the full three-dimensional time-dependent Schrödinger equation. It is demonstrated that the atomic photoelectron spectra oscillate out of step as a function of electron kinetic energies for different initial states (2s or 2p$_0$), which is well reproduced by the simulations based on strong field approximation, and the above distinct feature is ascribed to the different interferences from the partial electron wave packets detached by positive and negative electric fields for different initial states of 2s and 2p$_0$.

关键词: orbital symmetry, photoelectron spectra, strong-field approximation}

Abstract: We have performed a comparative study of the photoelectron spectra adopting different initial states (2s or 2p$_0$) of hydrogen atoms in a near-infrared laser pulse by using the full three-dimensional time-dependent Schrödinger equation. It is demonstrated that the atomic photoelectron spectra oscillate out of step as a function of electron kinetic energies for different initial states (2s or 2p$_0$), which is well reproduced by the simulations based on strong field approximation, and the above distinct feature is ascribed to the different interferences from the partial electron wave packets detached by positive and negative electric fields for different initial states of 2s and 2p$_0$.

Key words: orbital symmetry, photoelectron spectra, strong-field approximation}

中图分类号:  (Atomic spectra?)

  • 32.30.-r
32.80.Fb (Photoionization of atoms and ions) 31.15.A- (Ab initio calculations)