原子与分子物理学报2024，Vol.41Issue(3)：105-112,8.DOI:10.19855/j.1000-0364.2024.034001
利用多周期空间非均匀啁啾场产生单个短阿秒脉冲
Generation of the isolated short attosecond pulse by a multicycle spatially inhomogeneous chirped field
摘要
Abstract
An efficient scheme for producing an isolated short attosecond pulse is proposed.By numerically sol-ving one-dimensional time-dependent Schrödinger equation,the high-order harmonics and attosecond pulse generation of a pre-excited helium ion driven by a multicycle spatially inhomogeneous chirped field are investi-gated theoretically.The results show that the harmonic cutoff is significantly extended to the 1050th order and the harmonics beyond the 300th order are continuous in the spatially inhomogeneous chirped field.Because the su-percontinuum only derives from the contribution of the single quantum path and covers extremely a wide spectral width,an isolated 11.4 as pulse is directly generated by filtering out the harmonics of the 880th-1120th order in the supercontinuum.By increasing the duration time of the driving pulse,a single attosecond pulse as short as 10 as is obtained.关键词
高次谐波辐射/孤立阿秒脉冲/量子路径控制/空间非均匀啁啾场Key words
High-order harmonic generation/Isolated attosecond pulse/Quantum path control/Spatially inho-mogeneous chirped field分类
数理科学引用本文复制引用
韩岳峰,张刚台,白婷婷,张依琳,张倩,赵曦..利用多周期空间非均匀啁啾场产生单个短阿秒脉冲[J].原子与分子物理学报,2024,41(3):105-112,8.基金项目
陕西省自然科学基础研究计划项目(2016JM1012) （2016JM1012）
陕西省教育厅专项科研计划项目(18JK0050) （18JK0050）
宝鸡文理学院大学生创新创业训练计划项目(2019XJ067,2019XJ083) （2019XJ067,2019XJ083）
