High-order harmonic generation in sub-one-cycle regime

被引：0

作者：

Xiang Yang ^{[1
]}

Niu Yue-Ping ^{[2
]}

Qi Yi-Hong ^{[2
]}

Gong Shang-Qing ^{[2
]}

机构：

[1] Henan Polytech Univ, Sch Comp Sci & Technol, Jiaozuo 454000, Peoples R China

[2] E China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

来源：

CHINESE PHYSICS B | 2012年 / 21卷 / 06期

基金：

中国国家自然科学基金;

关键词：

high-order harmonic generation; sub-one-cycle pulse; switching term; RARE-GASES; ULTRAVIOLET-RADIATION; NONLINEAR OPTICS; LASER FIELDS; PULSES; IONIZATION;

D O I：

10.1088/1674-1056/21/6/064216

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We theoretically investigate the high-order harmonic generation from the hydrogen atom driven by the laser pulses with the durations less than the optical cycle. It is found that the switching term of the laser field may have an obvious influence on the cutoff, intensity or plateau structure of the high-order harmonic spectrum. Generally speaking, the switching term can shorten the cutoff of the high-order harmonic spectrum for a relatively longer pulse and extend the cutoff for a relatively shorter pulse.

引用

页数：8

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