摘要
We calculate the time-energy distribution(TED)and ionization time distribution(ITD)of photoelectrons emitted by a doubleextreme-ultraviolet(XUV)pulse and a two-color XUV-IR pulse using the Wigner distribution-like function based on the strong field approximation.For a double-XUV pulse,besides two identical broad distributions generated by two XUV pulses,many interference fringes resulting from the interference between electrons generated,respectively,by two pulses appear in the TED.After adding an IR field,the TED intuitively exhibits the effect of the IR field on the electron dynamics.The ITDs during two XUV pulses are no longer the same and show the different changes for the different two-color fields,the origin of which is attributed to the change of the electric field induced by the IR field.Our analysis shows that the emission time of electrons ionized during two XUV pulses mainly depends on the electric field of the combined XUV pulse and IR pulse.
作者
贾怡
郭丽
胡师林
贾欣燕
樊代和
陆荣华
韩申生
陈京
Yi Jia;Li Guo;Shilin Hu;Xinyan Jia;Daihe Fan;Ronghua Lu;Shensheng Han;Jing Chen(School of Physics,Southwest Jiaotong University,Chengdu 610031,China;Department of Physics,Shanghai Normal University,Shanghai 200234,China;Guangdong Provincial Key Laboratory of Quantum Metrology and Sensing&School of Physics and Astronomy,Sun Yat-sen University(Zhuhai Campus),Zhuhai 519082,China;Key Laboratory for Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Institute of Applied Physics and Computational Mathematics,Beijing 100088,China;Center for Advanced Material Diagnostic Technology,College of Engineering Physics,Shenzhen Technology University,Shenzhen 518118,China)
基金
partially supported by the National Key Research and Development Program of China(Nos.2019YFA0307700and 2016YFA0401100)
the National Natural Science Foundation of China(NSFC)(Nos.11774361,11775286,11804405,and 12047576)。
