首页|Time-energy distribution of photoelectron from atomic states with different magnetic quantum numbers in elliptically polarized laser fields

Time-energy distribution of photoelectron from atomic states with different magnetic quantum numbers in elliptically polarized laser fields

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A Wigner-distribution-like(WDL)function based on the strong-field approximation(SFA)theory is used to investi-gate the ionization time of the photoelectron emitted from the initial states with different magnetic quantum number m in elliptically polarized electric fields.The saddle-point method is adopted for comparisons.For different m states,a discrep-ancy exists in the WDL distributions of the photoelectrons emitted in a direction close to the major axis of the laser field ellipse.Based on the saddle-point analysis,this discrepancy can be ascribed to the interference between electrons ionized from two tunneling instants.Our results show that the relationships between the tunneling instants and kinetic energy of photoelectrons are the same for different m initial states when the Coulomb potential is not considered.Our work sheds some light on the ionization-time information of electrons from different magnetic quantum states.

strong-field ionizationWigner-distribution-likeionization instant

徐菁阳、郭丽、齐昕、陆荣华、张敏、张敬涛、陈京

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Department of Physics,Shanghai Normal University,Shanghai 200234,China

Key Laboratory for Quantum Optics and Center for Cold Atom Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences,University of Science and Technology of China,Hefei 230026,China

Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology,College of Engineering Physics,Shenzhen Technology University,Shenzhen 518118,China

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National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

2019YFA03077001227430012074261

2024

10.1088/1674-1056/ad58b3

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(9)