【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.更多还原

【Abstract】 We found out the dominant factor inhibiting efficient emission of super-high-order harmonics exceeding Ip+3.2Up 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+8Up are promoted over 3 orders of magnitude.更多还原