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啁啾脉冲辐照下始于原子迭加态的高次谐波发射
引用本文:朱红玉,陈西园,杨玉军,郭福明,王丽,朱颀人.啁啾脉冲辐照下始于原子迭加态的高次谐波发射[J].原子与分子物理学报,2009,26(2):311-314.
作者姓名:朱红玉  陈西园  杨玉军  郭福明  王丽  朱颀人
作者单位:1. 辽宁石油化工大学顺华能源学院,抚顺,113001
2. 吉林大学原子与分子物理研究所,长春,130012
摘    要:本文研究了一维初态为基态与第一激发态等权线性迭加态的模型原子在不同正啁啾激光脉冲辐照下的高次谐波发射谱。数值结果表明,谐波谱平台的截止位置随啁啾系数的增大大幅度的展宽。采用SMT(simple man’s theory)仔细分析了各啁啾激光场辐照下电子的动力学行为,阐明了谐波谱平台随啁啾系数增大而展宽的机制。

关 键 词:高次谐波  啁啾脉冲  迭加态

The High-Order Harmonics from an Initial Atomic Superposition
Zhu Hong-Yu,Cheng Xi-yuan,Yang yu-jun,Guo Fu-ming,Wang Li and Zhu Qi-ren.The High-Order Harmonics from an Initial Atomic Superposition[J].Journal of Atomic and Molecular Physics,2009,26(2):311-314.
Authors:Zhu Hong-Yu  Cheng Xi-yuan  Yang yu-jun  Guo Fu-ming  Wang Li and Zhu Qi-ren
Abstract:We investigated the high-order harmonic generation (HHG) spectrum from a one dimensional model atom initially prepared in an equally weighted superposition of ground and the 1st-excited state irradiated by positive chirped pulses. It is found that the HHG plateau is extended on a large scale by increasing the chirp. We clarified the mechanism why the HHG plateau is extended on a lager scale with the increase of the chirp by analyzing the dynamic behavior in terms of SMT.
Keywords:HHG  Chirped pulses  Coherent states
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