Effect of electron correlation on high-order harmonic generation in helium model atom

被引：7

作者：

Hu Shi-Lin ^{[1
,2
]}

Shi Ting-Yun ^{[1
]}

机构：

[1] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

CHINESE PHYSICS B | 2013年 / 22卷 / 01期

基金：

中国国家自然科学基金;

关键词：

electron correlation; high-order harmonic generation; B-spline; LASER FIELDS; INTENSE; IONIZATION;

D O I：

10.1088/1674-1056/22/1/013101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High-order harmonic generation (HHG) of a helium model atom in an intense laser field has been numerically investigated. The influence of electron correlation on HHG is analysed by changing the strength between the electrons. The numerical results show that as the electron interaction strength becomes small, the first ionization energy increases rapidly, which results in the decrease in ionization. So the conversion efficiency of the high harmonic lying in the plateau decreases greatly, while the cutoff harmonic order in the harmonic spectrum increases.

引用

页数：4

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