Increasing line-density of high-order harmonic generation spectra with bichromatic fields

被引：7

作者：

Liu Shuo ^{[1
]}

Chen Gao ^{[1
]}

Chen Ji-Gen ^{[2
]}

Zhu Qi-Ren ^{[3
]}

机构：

[1] Changchun Univ Sci & Technol, Dept Phys, Sch Sci, Changchun 130022, Peoples R China

[2] Taizhou Coll, Dept Phys, Jiaojiang 318000, Peoples R China

[3] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China

来源：

ACTA PHYSICA SINICA | 2009年 / 58卷 / 03期

关键词：

high-order harmonic generation; attosecond pulse; bichromatic field; LASERS;

D O I：

10.7498/aps.58.1574

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By numerically solving time-dependent Schrodinger equation, we obtain high-order harmonic generation (HHG) spectra from the one-dimensional H atom model submitted to linear polarization bichromatic field. It is found that, appropriate bichromatic field could be a source of attosecond pulse generation since it produces a ligher line-density in harmonic generation spectra (HGS). Based on it, we analyze the mechanism of generating denser HHG spectral lines in detail, and give density-selection numerical experiential formulas for different pulses duration, to achieve further control of the line density of HGS.

引用

页码：1574 / 1578

页数：5

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