Theoretical study on single attosecond pulse generated by midinfrared intense laser pulse

被引：3
|
作者：
Du X. [1 ]
Zhou X. [1 ]
Li P. [1 ]
机构：
[1] College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 05期
关键词：
Attosecond pulse; High-order harmonic; Midinfrared laser fields; Nonlinear optics; Split-operator;
D O I：
10.3788/CJL20103705.1213
中图分类号：
学科分类号：
摘要：
We investigate the generation of isolated broadband attosecond pulses for a model of He atom driven by a midinfrared (MIR) laser pulse in combination with a ultraviolet (UV) controlling pulse. By solving the time-dependent Schrödinger equation with split-operator method, the high-order harmonic and attosecond pulse are obtained with MIR and UV pulses, whose wavelengths are 1400 nm and 78 nm respectively. By adjusting the time delay of two lasers, we can enhance the contribution of one electron trajectory and suppress the other electron trajectory. Thus we obtain a shorter isolated attosecond pulse, compared with the pulse produced by the He atom driven by the infrared and ultraviolet fields.
引用
收藏
页码：1213 / 1217
页数：4
相关论文
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