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中文摘要：
文章介绍了超短强激光场中原子、分子双电离的研究现状,提出了能够有效处理双电离过程的半经典模型,成功地重现了双电离率随激光强度变化的实验数据,同时预言了分子取向对双电离率的重要影响.文章还通过分析典型的双电离轨道的演化,给出了理解双电离复杂动力学过程的直观物理图像.
英文摘要：
A brief introduction to the hot topic of atomic-molecular double ionization irradiated by an ultra - short intense laser field is presented. A semi-classical model is proposed to account for the complex dynamics of molecular double ionization. With this model, we reproduce the experimental data over a wide range of laser intensities and reveal the significant influence of molecular alignment on double ionization yield. Back analysis on the double-ionization trajectories provides an intuitive way towards understanding the complex dynamics involved in molecular double ionization.
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