| 超短脉冲谐波辐射过程中的量子路径分析 |
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| 引用本文： | 刘烨,陈光龙,绍辉丽. 超短脉冲谐波辐射过程中的量子路径分析[J]. 原子与分子物理学报, 2011, 28(4): 697-702. DOI: 10.3969/j.issn.1000-0364.2011.04.017 |
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| 作者姓名： | 刘烨 陈光龙 绍辉丽 |
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| 作者单位： | 上海工程技术大学基础教学学院,上海,201620 |
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| 摘 要： | 本文数值计算了脉宽为半个光学周期的超短脉冲在不同载波包络相位下的谐波波谱，通过比较谐波波谱截止频率与电子通过主要路径可获得的最大动能的差异，研究了超短脉冲谐波辐射过程中的量子路径。结果显示，超短脉冲谐波辐射过程中电子获得动能的量子路径偏离主要量子路径，而且该偏离效应受载波包络相位的影响。
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| 关 键 词： | 超短脉冲；高次谐波产生；量子路径；载波包络相位 |
Analysis of quantum paths in high-order harmonic generation of ultra-short laser pulse |
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| LIU Ye,CHEN Guang-Long,SHAO Hui-Li. Analysis of quantum paths in high-order harmonic generation of ultra-short laser pulse[J]. Journal of Atomic and Molecular Physics, 2011, 28(4): 697-702. DOI: 10.3969/j.issn.1000-0364.2011.04.017 |
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| Authors: | LIU Ye CHEN Guang-Long SHAO Hui-Li |
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| Affiliation: | Shanghai University of Engineering Science |
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| Abstract: | We calculate the high-order harmonic generation spectrum for ultra-short laser pulse whose duration is 0.5T (T is the optical cycle) with different carrier-envelope phases. The analysis of quantum paths has been given by comparing the cutoff frequency with the maximum kinetic energy gained by the electron through the dominant quantum path. The results show that the quantum path through which the electron gains kinetic energy deviates the dominant quantum path. In addition, the deviation is effected of the carrier-envelope phase. |
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| Keywords: | ultra-short laser pulse high-order harmonic generation quantum path carrier-envelope phase |
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