Quantum interference of a time-dependent wave packet of atom irradiated by an ultra-short laser pulse

被引：0
|
作者：
Yan, Wen-Min [1 ,2 ]
Chen, Ji-Gen [3 ]
Wang, Jun [1 ,2 ]
Guo, Fu-Ming [1 ,2 ]
Yang, Yu-Jun [1 ,2 ]
机构：
[1] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China
[2] Jilin Univ, Jilin Prov Key Lab Appl Atom & Mol Spect, Changchun 130012, Peoples R China
[3] Taizhou Univ, Zhejiang Prov Key Lab Cutting Tools, Taizhou 318000, Peoples R China
来源：
CHINESE PHYSICS B | 2020年 / 29卷 / 01期
基金：
中国国家自然科学基金;
关键词：
high-order harmonic generation; above-threshold ionization; HARMONIC-GENERATION; IONIZATION;
D O I：
10.1088/1674-1056/ab5a3c
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The wave packet evolution of an atom irradiated by an intense laser pulse is systematically investigated by using the numerical solution of the time-dependent Schrodinger equation. There are two types of spatial interference structures in the time-dependent evolution of the atomic wave packet. With the increasing of the evolution time, the interference fringe spacing for type I (type II) becomes larger (smaller). As the wavelength of the incident laser increases, the interference of the wave packet is changed from type II to type I, and the shift of interference type can be attributed to the contribution of excited states by using the energy analysis of the time-dependent wave function.
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页数：6
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