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Chin. Phys. B, 2011, Vol. 20(11): 113201    DOI: 10.1088/1674-1056/20/11/113201

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)
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
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.
Keywords:  momentum distribution      energy spectra      time-dependent Schrö      dinger equation  
Received:  20 January 2011      Revised:  24 March 2011      Accepted manuscript online: 
PACS:  32.80.Rm (Multiphoton ionization and excitation to highly excited states)  
  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)  
Fund: 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).

Cite this article: 

Sun Chang-Ping(孙长平), Zhao Song-Feng(赵松峰), Chen Jian-Hong(陈建宏), and Zhou Xiao-Xin(周效信) Two-dimensional photoelectron momentum distribution of hydrogen in intense laser field 2011 Chin. Phys. B 20 113201

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