一维联合双原子在组合激光脉冲作用下的超高次谐波发射  

Super-high-order harmonic generation of a one-dimensional united-atom by combined laser pulses

作　　者：郭福明[1] 杨玉军[1] 朱颀人[1] 

机构地区：[1]吉林大学原子与分子物理研究所,长春130012

出　　处：《原子与分子物理学报》2007年第2期415-417,共3页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金(10474028;10604021);教育部博士点基金(20040183041);吉林大学创新基金

摘　　要：本文分析了在联合原子方案下高于Ip+3.2Up的超高次谐波发射效率极低的主要因素:除电子间的排斥作用外,更重要的原因乃是在通常情况下外来电子在非母离子中没有布居.据此,提出了一个有效解决这个难题的组合激光脉冲方案,从而将高达Ip+8Up的超高次谐波的发射效率提高了三个数量级以上.We found out the dominant factor inhibiting efficient emission of super-high-order harmonics exceeding Ip ＋ 3.2 Up in the united-atom scheme, which is mainly not the Coulomb repulse between the electrons belonging different atoms, but is the null population of the active electron in the target atom. To overcome this difficulty we proposed a strategy using combined pulses, under which the emission efficiencies near the photon energy Ip ＋ 8 Up are promoted over 3 orders of magnitude.

关 键 词：高次谐波 联合双原子 组合脉冲 

分 类 号：O562[理学—原子与分子物理]