The wavelength dependence of high-order harmonic generation and attosecond pulses from atom in infrared laser field

被引：3

作者：

Cheng Chun-Zhi ^{[1
]}

Zhou Xiao-Xin ^{[1
]}

Li Peng-Cheng ^{[1
]}

机构：

[1] NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China

来源：

ACTA PHYSICA SINICA | 2011年 / 60卷 / 03期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

strong-field approximation; high-order harmonic; attosecond pulse;

D O I：

10.7498/aps.60.033203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Basing on the strong-field approximation, we study high harmonic generation of hydrogen atom exposed to the long wavelength infrared laser field, and analyze the wavelength dependence of conversion efficiency of high-order harmonic generation near the cut-off position. It is found that high-order harmonic yield is much lower near cut-off than in the beginning of the plateau of the harmonic generation, but the width of the attosecond pulse is narrowed with increasing wavelength.

引用

页数：5

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