中国物理B ›› 2011, Vol. 20 ›› Issue (11): 113201-113201.doi: 10.1088/1674-1056/20/11/113201

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Two-dimensional photoelectron momentum distribution of hydrogen in intense laser field

孙长平1, 赵松峰1, 周效信1, 陈建宏2   

  1. (1)Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; (2)Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; Peili College of Engineering and Technique, Lanzhou City Universi
  • 收稿日期:2011-01-20 修回日期:2011-03-24 出版日期:2011-11-15 发布日期:2011-11-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11044007 and 11064013), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20096203110001), and the Foundation of Northwest Normal University, China (Grant Nos. NWNU-KJCXGC-03-62 and NWNU-KJCXGC-03-70).

Two-dimensional photoelectron momentum distribution of hydrogen in intense laser field

Sun Chang-Ping(孙长平)a), Zhao Song-Feng(赵松峰)a), Chen Jian-Hong(陈建宏)a)b), and Zhou Xiao-Xin(周效信)a)†   

  1. a Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; b Peili College of Engineering and Technique, Lanzhou City University, Lanzhou 730070, China
  • Received:2011-01-20 Revised:2011-03-24 Online:2011-11-15 Published:2011-11-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11044007 and 11064013), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20096203110001), and the Foundation of Northwest Normal University, China (Grant Nos. NWNU-KJCXGC-03-62 and NWNU-KJCXGC-03-70).

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摘要： Two-dimensional (2D) electron momentum distributions and energy spectra of a hydrogen in an intense laser field are calculated by solving the time-dependent Schrödinger equation combined with the window-operator technique. Compared with the standard projection technique, the window-operator technique has the advantage that the continuum states of atoms can be avoided in the calculation. We show that the 2D electron momentum distributions and the energy spectra from those two techniques accord quite well with each other if an appropriate energy width is used in the window operator.

关键词: momentum distribution, energy spectra, time-dependent Schrö, dinger equation

Abstract: Two-dimensional (2D) electron momentum distributions and energy spectra of a hydrogen in an intense laser field are calculated by solving the time-dependent Schrödinger equation combined with the window-operator technique. Compared with the standard projection technique, the window-operator technique has the advantage that the continuum states of atoms can be avoided in the calculation. We show that the 2D electron momentum distributions and the energy spectra from those two techniques accord quite well with each other if an appropriate energy width is used in the window operator.

Key words: momentum distribution, energy spectra, time-dependent Schrö, dinger equation

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

  • 32.80.Rm
32.80.Fb (Photoionization of atoms and ions) 42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)