Effect of rescattering potential on the high-energy above-threshold ionization of a model-H atom

被引：5

作者：

Chen, J-H ^{[1
]}

Wang, G-L ^{[2
]}

Zhang, Z-R ^{[1
]}

Zhao, S-F ^{[2
]}

机构：

[1] Lanzhou City Univ, Dept Phys, Lanzhou 730070, Peoples R China

[2] Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China

来源：

INDIAN JOURNAL OF PHYSICS | 2017年 / 91卷 / 01期

基金：

中国国家自然科学基金;

关键词：

High-energy above-threshold ionization; Time-dependent Schrodinger equation; Strong-field approximation; Spherical shell potential; LOW-FREQUENCY APPROXIMATION; FIELD; DYNAMICS; COULOMB; PULSE;

D O I：

10.1007/s12648-016-0892-z

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The high-energy above-threshold ionization of a model-H atom (with 1s state and the same binding energy as H atom) in a few-cycle laser pulse is investigated by using the improved strong-field approximation (ISFA), where the spherical shell potential is used as the rescattering potential. The results obtained from numerically solving time-dependent Schrodinger equation(TDSE) are regarded as the benchmark results. Our results show that the energy distributions in high-energy region obtained from ISFA calculations using the spherical shell potential may either match or be better than those from ISFA using Yukawa potential and zero-range potential in the laser with wavelengths of 800 and 1200 nm. In addition, the influence of the rescattering potential on the density of probability at different ejection angles is also discussed in this paper.

引用

页码：9 / 16

页数：8

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