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总结并推导了在考虑激光脉冲包络时超短强激光脉冲光场电离多电子气体原子体系的阈上电离能量的计算公式 ,消除了以往研究中的唯象假设。发展了产生各阶离化态离子的阈值光强和饱和光强的计算方法。数值模拟表明 ,随激光能量升高 ,平均剩余电子能量呈现出类似阶梯型平台的饱和行为。
Summarized and deduced the formula for calculating the supra-ionization energy of the ionized multi-electron gas system when the laser pulse envelope is considered, which eliminates the phenomenological hypotheses in previous studies. A method to calculate the threshold intensity and saturation intensity of ionized ions in each stage has been developed. Numerical simulation shows that with the increase of laser energy, the average residual electron energy shows a similar saturation behavior of the stepped platform.