Single X-Ray Attosecond Pulse Generation by Using Combined Pulses Irradiating on a United Two-Atom System  

作　　者：陈基根 李琛 池方萍 杨玉军 

机构地区：[1]Department of Physics, Taizhou University, Linhai 317000 [2]College of Physics and Electronic Engineering, Ludong University, Yantai 264003 [3]Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012 [4]Institute of Theoretical Chemistry, Jilin University, Changchun 130012

出　　处：《Chinese Physics Letters》2007年第1期86-89,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10474028 and 10604021.

摘　　要：A scheme of a single x-ray attosecond pulse generation from a two-atom system exposed to the combined laser pulses is proposed. Our numerical results show that a single x-ray attosecond pulse rather than a train one can be produced by modulation of ionization. Furthermore, when we change the peak intensity Ih of the high-frequency pulse and keep the intensity of the low-frequency pulse constant, we can find that a range of Ih where the intensity of the attosecond pulse is optimal is available, and a explanation by the stimulated property of the recombination is also presented.A scheme of a single x-ray attosecond pulse generation from a two-atom system exposed to the combined laser pulses is proposed. Our numerical results show that a single x-ray attosecond pulse rather than a train one can be produced by modulation of ionization. Furthermore, when we change the peak intensity Ih of the high-frequency pulse and keep the intensity of the low-frequency pulse constant, we can find that a range of Ih where the intensity of the attosecond pulse is optimal is available, and a explanation by the stimulated property of the recombination is also presented.

分 类 号：O434.1[机械工程—光学工程]