量子电子学报2017，Vol.34Issue(2)：162-169,8.DOI:10.3969/j.issn.1007-5461.2017.02.005
空间非均匀场下H2+分子发射谐波及阿秒脉冲的理论研究
Theoretical investigation on harmonic emission and attosecond pulse generation from H2+ molecule under spatial inhomogeneous field
摘要
Abstract
High-order harmonic emission and attosecond pulse generation from H2+ molecule driven by the spatial inhomogeneous laser field are theoretically investigated.Calculation results show that by properly adjusting the internuclear distance of H2+ molecule and spatial inhomogeneous parameters,the cutoff energy of harmonic emission is remarkably enhanced,and the interference structure of harmonic spectrum is also reduced.By introducing unipolar control laser field,the harmonic cutoff energy is further extended,and a 530 eV bandwidth long platform area contributed by a single quantum path is formed.By superposition of harmonics,a series of attosecond X-ray pulses with the pulse width ranging from 32 as to 46 as can be obtained.关键词
激光物理/高次谐波/阿秒脉冲/H2+分子/空间非均匀激光场Key words
laser physics/high-order harmonic generation/attosecond pulse/H2+ molecule/spatial inhomogeneous laser field分类
数理科学引用本文复制引用
刘航,冯立强..空间非均匀场下H2+分子发射谐波及阿秒脉冲的理论研究[J].量子电子学报,2017,34(2):162-169,8.基金项目
Supported by National Natural Science Foundation of China(国家自然科学基金,11504151),Doctoral Scientific Research Foundation of Liaoning Province(辽宁省博士启动基金,201501123),Scientific Research Foundation of Liaoning Provincial Education Department(辽宁省教育厅基金,L2014242) （国家自然科学基金,11504151）
