Semiclassical investigation of Coulomb focusing effects in atomic above-threshold ionization with elliptically polarized laser fields

doi:10.1088/1674-1056/26/4/043201

中国物理B ›› 2017, Vol. 26 ›› Issue (4): 43201-043201.doi: 10.1088/1674-1056/26/4/043201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Semiclassical investigation of Coulomb focusing effects in atomic above-threshold ionization with elliptically polarized laser fields

Chuan-Liang Wang(王传亮), Li-Xin Xia(夏立新), Hong-Bin Yao(姚洪斌), Wen-Liang Li(李文亮)

1 School of Physics and Electrical Engineering, Kashgar University, Kashgar 844006, China;
2 Department of Physics, Xinjiang Institute of Engineering, Urumqi 830091, China

收稿日期:2016-11-13 修回日期:2017-01-22 出版日期:2017-04-05 发布日期:2017-04-05
通讯作者: Wen-Liang Li E-mail:wenliangli@vip.126.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11547218, 11564020, and 11504314).

Semiclassical investigation of Coulomb focusing effects in atomic above-threshold ionization with elliptically polarized laser fields

Chuan-Liang Wang(王传亮)¹, Li-Xin Xia(夏立新)¹, Hong-Bin Yao(姚洪斌)², Wen-Liang Li(李文亮)²

1 School of Physics and Electrical Engineering, Kashgar University, Kashgar 844006, China;
2 Department of Physics, Xinjiang Institute of Engineering, Urumqi 830091, China

Received:2016-11-13 Revised:2017-01-22 Online:2017-04-05 Published:2017-04-05
Contact: Wen-Liang Li E-mail:wenliangli@vip.126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11547218, 11564020, and 11504314).

摘要/Abstract

摘要：

We investigate atomic above-threshold ionization in elliptically polarized strong laser fields with a semiclassical approach. With increasing laser intensity, the Coulomb focusing (CF) effects are found to become stronger in both parallel and perpendicular directions with respect to the polarization plane. The dependence of CF effects on tunnel exit, initial transverse momentum distribution and laser electric field is analyzed. It was revealed that the effects of tunnel exit are most prominent with variation of the laser intensity, and the other two factors both play non-negligible roles. Our results provide a deeper insight to the recent experiments of Coulomb asymmetry [Shafir D, et al., 2013 Phys. Rev. Lett. 111 023005 and Li M, et al., 2013 Phys. Rev. Lett. 111 023006].

关键词: above-threshold ionization, Coulomb focusing effect, semiclassical method, elliptically polarized laser fields

Abstract:

Key words: above-threshold ionization, Coulomb focusing effect, semiclassical method, elliptically polarized laser fields

中图分类号: (Photoionization of atoms and ions)

32.80.Fb

31.15.xg (Semiclassical methods) 34.80.Dp (Atomic excitation and ionization)

王传亮, 夏立新, 姚洪斌, 李文亮. Semiclassical investigation of Coulomb focusing effects in atomic above-threshold ionization with elliptically polarized laser fields[J]. 中国物理B, 2017, 26(4): 43201-043201.

Chuan-Liang Wang(王传亮), Li-Xin Xia(夏立新), Hong-Bin Yao(姚洪斌), Wen-Liang Li(李文亮). Semiclassical investigation of Coulomb focusing effects in atomic above-threshold ionization with elliptically polarized laser fields[J]. Chin. Phys. B, 2017, 26(4): 43201-043201.

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Semiclassical investigation of Coulomb focusing effects in atomic above-threshold ionization with elliptically polarized laser fields

Semiclassical investigation of Coulomb focusing effects in atomic above-threshold ionization with elliptically polarized laser fields

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