Investigation on the influence of atomic potentials on the above threshold ionization

doi:10.1088/1674-1056/23/5/053202

中国物理B ›› 2014, Vol. 23 ›› Issue (5): 53202-053202.doi: 10.1088/1674-1056/23/5/053202

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Investigation on the influence of atomic potentials on the above threshold ionization

田原野^a, 李苏宇^a, 魏珊珊^a, 郭福明^a, 曾思良^{b c}, 陈基根^d, 杨玉军^a

a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
b Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
c Science and Technology Computation Physics Laboratory, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
d Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China

收稿日期:2013-09-05 修回日期:2013-11-08 出版日期:2014-05-15 发布日期:2014-05-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2013CB922200), the National Natural Science Foundation of China (Grant Nos. 11274141, 11034003, 11304116, 11274001, and 11247024), and the Jilin Provincial Research Foundation for Basic Research, China (Grant No. 20140101168JC).

Investigation on the influence of atomic potentials on the above threshold ionization

Tian Yuan-Ye (田原野)^a, Li Su-Yu (李苏宇)^a, Wei Shan-Shan (魏珊珊)^a, Guo Fu-Ming (郭福明)^a, Zeng Si-Liang (曾思良)^{b c}, Chen Ji-Gen (陈基根)^d, Yang Yu-Jun (杨玉军)^a

a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
b Data Center for High Energy Density Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
c Science and Technology Computation Physics Laboratory, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
d Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China

Received:2013-09-05 Revised:2013-11-08 Online:2014-05-15 Published:2014-05-15
Contact: Yang Yu-Jun E-mail:yangyj@jlu.edu.cn
About author:32.80.Rm; 42.50.Hz
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2013CB922200), the National Natural Science Foundation of China (Grant Nos. 11274141, 11034003, 11304116, 11274001, and 11247024), and the Jilin Provincial Research Foundation for Basic Research, China (Grant No. 20140101168JC).

摘要/Abstract

摘要： We systematically investigate the influence of atomic potentials on the above-threshold ionization (ATI) spectra in one-dimensional (1D) cases and compare them with the three-dimensional (3D) case by numerically solving the time-dependent Schrödinger equation. It is found that the direct ionization plateau and the rescattering plateau of the ATI spectrum in the 3D case can be well reproduced by the 1D ATI spectra calculated from the supersolid-core potential and the soft-core potential, respectively. By analyzing the factors that affect the yield of the ATI spectrum, we propose a modified-potential with which we can reproduce the overall 3D ATI spectrum. In addition, the influence of the incident laser intensities and frequencies on the ATI spectra calculated from the proposed modified potential is studied.

关键词: above threshold ionization, model potential, angular distribution of photoelectron

Abstract: We systematically investigate the influence of atomic potentials on the above-threshold ionization (ATI) spectra in one-dimensional (1D) cases and compare them with the three-dimensional (3D) case by numerically solving the time-dependent Schrödinger equation. It is found that the direct ionization plateau and the rescattering plateau of the ATI spectrum in the 3D case can be well reproduced by the 1D ATI spectra calculated from the supersolid-core potential and the soft-core potential, respectively. By analyzing the factors that affect the yield of the ATI spectrum, we propose a modified-potential with which we can reproduce the overall 3D ATI spectrum. In addition, the influence of the incident laser intensities and frequencies on the ATI spectra calculated from the proposed modified potential is studied.

Key words: above threshold ionization, model potential, angular distribution of photoelectron

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

32.80.Rm

42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)

田原野, 李苏宇, 魏珊珊, 郭福明, 曾思良, 陈基根, 杨玉军. Investigation on the influence of atomic potentials on the above threshold ionization[J]. 中国物理B, 2014, 23(5): 53202-053202.

Tian Yuan-Ye (田原野), Li Su-Yu (李苏宇), Wei Shan-Shan (魏珊珊), Guo Fu-Ming (郭福明), Zeng Si-Liang (曾思良), Chen Ji-Gen (陈基根), Yang Yu-Jun (杨玉军). Investigation on the influence of atomic potentials on the above threshold ionization[J]. Chin. Phys. B, 2014, 23(5): 53202-053202.

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Investigation on the influence of atomic potentials on the above threshold ionization

Investigation on the influence of atomic potentials on the above threshold ionization

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