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The effect of electron initial longitudinal velocity on the non-sequential double ionization process in an elliptically polarized laser field |
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| Authors: | Hao Xiao-Lei a Li Wei-Dong a Liu Jie bc and Chen Jing |
| Affiliation: | [1]Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006, China [2]） Center for Applied Physics and Technology, Peking University, Beijing 100871, China [3]Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088, China |
| Abstract: | The effect of initial longitudinal velocity of the tunnelled electron on the non-sequential double ionization(NSDI) process in an 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 the 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 narrower. |
| Keywords: | non-sequential double ionization initial longitudinal velocity elliptically polarized laserfield single return collision |
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