Controlling the contributions to high-order harmonic generation from different nuclei of N-2 with an orthogonally polarized two-color laser field
Controlling the contributions to high-order harmonic generation from different nuclei of N-2 with an orthogonally polarized two-color laser field
复制标题
用正交偏振双色激光场控制 N-2 不同核对高次谐波产生的贡献
DOI：
10.1088/1674-1056/25/9/093202
复制
发表时间：
2016-07
影响因子：
1.7
通讯作者：
Liu Xue-Shen
中科院分区：
文献类型：
--
作者：
Du Hui;Pan Xue-Fei;Liu Hai-Feng;Zhang Hong-Dan;Zhang Jun;Guo Jing;Liu Xue-Shen
利用强场Lewenstein模型研究了N-2分子在正交偏振双色激光场中的高次谐波和阿秒脉冲的产生。结果表明，通过适当选择相对相位，可以实现对不同核对高次谐波产生贡献的控制。当相对相位取φ = 0.4 π时，一个核对高次谐波的贡献远大于另一个核。两核间的干涉被大大抑制，在40 ~ 125 eV范围内出现了超连续谱。时频分析和有限初始横向速度的半经典三步模型很好地解释了其物理机制。通过几次谐波的叠加，可以产生持续时间为80 As的孤立阿秒脉冲。
The generation of high-order harmonic and the attosecond pulse of the N-2 molecule with an orthogonally polarized two-color laser field are investigated by the strong-field Lewenstein model. We show that the control of contributions to high-order harmonic generation (HHG) from different nuclei is realized by properly selecting the relative phase. When the relative phase is chosen to be phi= 0.4 pi, the contribution to HHG from one nucleus is much more than that from another. Interference between two nuclei can be suppressed greatly; a supercontinuum spectrum of HHG appears from 40 eV to 125 eV. The underlying physical mechanism is well explained by the time-frequency analysis and the semi-classical three-step model with a finite initial transverse velocity. By superposing several orders of harmonics, an isolated attosecond pulse with a duration of 80 as can be generated.
登录
查看更多内容
影响因子：
2.9
作者：
Zenghu Chang
通讯作者：
Zenghu Chang
使用双色激光脉冲生成隔离的 sub-40-as 脉冲：组合线性调频效应
影响因子：
2.9
作者：
Liqiang Feng;Tianshu Chu
通讯作者：
Tianshu Chu
影响因子：
2.9
作者：
H. Du;Huiqiao Wang;Bi-tao Hu
通讯作者：
H. Du;Huiqiao Wang;Bi-tao Hu
影响因子：
8.6
作者：
Richter Martin;Kunitski Maksim;Schoeffler Markus;Jahnke Till;Schmidt Lothar P. H.;Li Min;Liu Yunquan;Doerner Reinhard
通讯作者：
Doerner Reinhard
DOI：
10.1088/0953-4075/43/13/135601
发表时间：
2010-07
期刊：
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子：
--
作者：
Ryan Murray;C. Ruiz;J. Marangos;M. Ivanov
通讯作者：
Ryan Murray;C. Ruiz;J. Marangos;M. Ivanov