大幅度地展宽和抬高高次谐波平台的新方案  

A Scheme for Simultaneous Extension and Enhancement of the HHG Plateau

作　　者：金才积[1] 陈高[2] 

机构地区：[1]台州学院,浙江临海317000 [2]长春理工大学理学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2009年第1期109-112,共4页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金(10474028)

摘　　要：通过采用一束钛宝石激光和它的33次谐波(H33)脉冲辐照联合两原子模型,在合适核间距,谐波平台由单原子情形下的Ip+3.2Up展宽到联合两原子情形下的Ip+5.6Up。进而,使用这种组合激光脉冲,体系的谐波发射效率又比只用钛宝石激光脉冲时提高了6个数量级。We present the high-order harmonic generation spectrum from a united two-atom system simultaneously exposed to a fundamental Ti：sapphire and its 33rd harmonic laser. At a suitable inter-nuclear separation, the harmonic plateau is widened from Ip＋3.2Up in the single-atom case up to Ip＋5.6Up in the united two-atom case. Furthermore, the plateau is heightened in excess of six orders of magnitude by using the combined laser compared with the case of the fundamental laser alone.

关 键 词：高次谐波产生 组合脉冲 联合两原子体系 

分 类 号：O56[理学—原子与分子物理]