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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 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 |
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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$_0$.
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Received: 23 August 2024
Revised: 18 October 2024
Accepted manuscript online: 01 November 2024
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PACS:
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32.30.-r
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(Atomic spectra?)
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32.80.Fb
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(Photoionization of atoms and ions)
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31.15.A-
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(Ab initio calculations)
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| Fund: 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). |
Corresponding Authors:
Shilin Hu
E-mail: shlhu@stu.edu.cn
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Cite this article:
Manqi Xu(徐嫚琦), Shilin Hu(胡师林), Li Guo(郭丽), and Jing Chen(陈京) Effect of orbital symmetry on atomic ionization in near-infrared laser fields 2025 Chin. Phys. B 34 013202
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