Role of elastic scattering in high-order above threshold ionization

doi:10.1088/1674-1056/24/10/103203

中国物理B ›› 2015, Vol. 24 ›› Issue (10): 103203-103203.doi: 10.1088/1674-1056/24/10/103203

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Role of elastic scattering in high-order above threshold ionization

陈长进, 叶坚绵, 徐杨兵

Department of Physics, College of Science, Shantou University (STU), Shantou 515063, China

收稿日期:2015-03-07 修回日期:2015-04-21 出版日期:2015-10-05 发布日期:2015-10-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11274219), the STU Scientific Research Foundation for Talents, and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry, China.

Role of elastic scattering in high-order above threshold ionization

Chen Zhang-Jin (陈长进), Ye Jian-Mian (叶坚绵), Xu Yang-Bing (徐杨兵)

Department of Physics, College of Science, Shantou University (STU), Shantou 515063, China

Received:2015-03-07 Revised:2015-04-21 Online:2015-10-05 Published:2015-10-05
Contact: Chen Zhang-Jin E-mail:chenzj@stu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11274219), the STU Scientific Research Foundation for Talents, and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry, China.

摘要/Abstract

摘要： We investigate the target and intensity dependence of plateau in high-order above threshold ionization (HATI) by simulating the two-dimensional (2D) momentum distributions and the energy spectra of photoelectrons in HATI of rare gas atoms through using the quantitative rescattering model. The simulated results are compared with the existing experimental measurements. It is found that the slope of the plateau in the HATI photoelectron energy spectrum highly depends on the structure of elastic scattering differential cross section (DCS) of laser-induced returning electron with its parent ion. The investigations of the long- and short-range potential effects in the DCSs reveal that the short-range potential, which reflects the structure of the target, plays an essential role in generating the HATI photoelectron spectra.

关键词: above threshold ionization, plateau, returning electron wave packet, elastic scattering

Abstract: We investigate the target and intensity dependence of plateau in high-order above threshold ionization (HATI) by simulating the two-dimensional (2D) momentum distributions and the energy spectra of photoelectrons in HATI of rare gas atoms through using the quantitative rescattering model. The simulated results are compared with the existing experimental measurements. It is found that the slope of the plateau in the HATI photoelectron energy spectrum highly depends on the structure of elastic scattering differential cross section (DCS) of laser-induced returning electron with its parent ion. The investigations of the long- and short-range potential effects in the DCSs reveal that the short-range potential, which reflects the structure of the target, plays an essential role in generating the HATI photoelectron spectra.

Key words: above threshold ionization, plateau, returning electron wave packet, elastic scattering

中图分类号: (Multiphoton ionization and excitation to highly excited states)

32.80.Rm

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)

陈长进, 叶坚绵, 徐杨兵. Role of elastic scattering in high-order above threshold ionization[J]. 中国物理B, 2015, 24(10): 103203-103203.

Chen Zhang-Jin (陈长进), Ye Jian-Mian (叶坚绵), Xu Yang-Bing (徐杨兵). Role of elastic scattering in high-order above threshold ionization[J]. Chin. Phys. B, 2015, 24(10): 103203-103203.

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Role of elastic scattering in high-order above threshold ionization

Role of elastic scattering in high-order above threshold ionization

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