Marked Advance in Widths and Heights of Harmonic Plateau  

作　　者：陈高 朱颀人 

机构地区：[1]College of Science, Changchun University of Science and Technology [2]Institute of Atomic and Molecular Physics, Jilin University

出　　处：《Communications in Theoretical Physics》2010年第4期759-763,共5页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No. 10474028

摘　　要：We propose a scheme to simultaneously widen and heighten the high-order harmonic plateau on a large scale. More specifically, by adopting a united two-atom system with a suitable inter-nuclear separation instead of a single-atom, the harmonic plateau is widened from Ip ＋ 3.2Up to Ip ＋8.5Up; further, by adopting the combined pulse, the extended plateau （harmonics near Ip＋ 5.6Up） is selectively heightened in excess of 4 orders of magnitude compared with the case of the low-frequency pulse alone. By means of the wavelet transform for the induced dipole of these harmonics, a single x-ray pulse as short as 210 asec is achieved.

关 键 词：high-order harmonic generation united two-atom model combined pulse 

分 类 号：O562[理学—原子与分子物理]