@Article{JAMS-7-146,
author = {Du , HuiGe , Xin-LeiLin , Yun-TaoZhong , Hui-YingGuo , Jing and Liu , Xue-Shen},
title = {Isolated Attosecond Pulse Generation in a 800 nm Laser Field by Adding a Terahertz (THz) Pulse},
journal = {Journal of Atomic and Molecular Sciences},
year = {2016},
volume = {7},
number = {3},
pages = {146--154},
abstract = {<p style="text-align: justify;">We theoretically study the high-order harmonic and the isolated attosecond
pulse generation in the near-infrared (IR) (3-fs, 800 nm) laser pulse by adding a terahertz
(THz) controlling field with proper phases. It is found that the high-order harmonic
spectrum in the IR pulse by adding a terahertz field is broader and smoother
than that in the single IR pulse. The underlying physical mechanism is illustrated by
means of the time-frequency analysis and the three-step model. We calculate the ionization
rate by ADK model to further demonstrate the process of high-order harmonic
generation. By superposing a proper range of harmonic spectrum, an isolated attosecond
pulse with the duration of 71 as is obtained.</p>},
issn = {2079-7346},
doi = {https://doi.org/10.4208/jams.022516.041916a},
url = {http://global-sci.org/intro/article_detail/jams/8143.html}
}