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

doi:10.1088/1674-1056/20/11/113201

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).

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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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