The effect of electron initial longitudinal velocity on non-sequential double ionization process in elliptically polarized laser field

doi:10.1088/1674-1056/21/8/083304

Abstract The effect of initial longitudinal velocity of the tunnelled electron on the non-sequential double ionization (NSDI) process in elliptically polarized laser field is studied by a semiclassical model. We find that the non-zero initial longitudinal velocity has a suppressing effect on single-return collision (SRC) events in double ionization process, more specifically, it results in an obvious reduction in the center part of the correlation momentum distributions in the direction of the major polarization axis (z axis) and makes the distribution of single-return collision in the minor polarization axis (x axis) become narrow.

Keywords: non-sequential double ionization initial longitudinal velocity elliptically polarized laser field single return collision

Received: 08 February 2012
Revised: 14 March 2012
Accepted manuscript online:

PACS:	33.80.Rv	(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
	34.50.Rk	(Laser-modified scattering and reactions)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11074026 and 11074155) and the Program for New Century Excellent Talents in University of the Ministry of Education of China (Grant No. NCET-08-0883).

Corresponding Authors: Li Wei-Dong, Chen Jing
E-mail: wdli@sxu.edu.cn; chen jing@iapcm.ac.cn

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Hao Xiao-Lei (郝小雷), Li Wei-Dong (李卫东), Liu Jie (刘杰), Chen Jing (陈京) The effect of electron initial longitudinal velocity on non-sequential double ionization process in elliptically polarized laser field 2012 Chin. Phys. B 21 083304

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The effect of electron initial longitudinal velocity on non-sequential double ionization process in elliptically polarized laser field

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