| 脉冲形状对氢原子高次谐波的影响 |
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| 引用本文： | 崔磊,王帆,徐秀莲,曾祥华.脉冲形状对氢原子高次谐波的影响[J].光子学报,2008,37(11):2159-2162. |
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| 作者姓名： | 崔磊 王帆 徐秀莲 曾祥华 |
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| 作者单位： | 1. 宿迁学院,基础部,江苏,宿迁,223800
2. 扬州大学,物理科学与技术学院,复杂性科学中心,江苏,扬州,225002 |
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| 基金项目： | 江苏省教育厅资助项目，宿迁学院科研基金 |
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| 摘 要： | 在含时密度泛函理论框架下,采用经典和量子相结合的模型,模拟了氢原子在超强飞秒激光脉冲作用下的高次谐波产生现象,并研究了激光脉冲形状对氢原子高次谐波的影响.结果表明,氢原子的高次谐波谱具有典型的原子谐波谱的特征；具有“下降－平台－截止”的结构和偶次谐波被禁闭仅出现奇次谐波的选择性特征；不同的脉冲形状会导致高次谐波的截止频率和谱线强度的变化.
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| 关 键 词： | 含时密度泛函理论 超强飞秒激光 高次谐波 氢原子 |
| 收稿时间： | 2007-08-13 |
| 修稿时间： | 2007-12-02 |
Effects of Pulse-shape on High Order Harmonic Generation of Hydrogen Atom |
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| CUI Lei,WANG Fan,XU Xiu-Lian,ZENG Xiang-hua.Effects of Pulse-shape on High Order Harmonic Generation of Hydrogen Atom[J].Acta Photonica Sinica,2008,37(11):2159-2162. |
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| Authors: | CUI Lei WANG Fan XU Xiu-Lian ZENG Xiang-hua |
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| Affiliation: | CUI Lei1,2,WANG Fan1,XU Xiu-lLian2,ZENG Xiang-hua2(1 Fundamental Departmen,Suqian College,Suqian,Jiangsu 223800,China)(2 College of Physics Science , Technology,Complexity Science Center,Yangzhou Universit,Yangzhou Jiangsu 225002,China) |
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| Abstract: | The high order harmonic generation(HHG) of hydrogen atom radiated by ultra-strong femto-second laser pulse was simulated by the TDDFT method with the classical and quantum combination technique.And the effects of pules-shape on HHG were studied.The results indicate that the HHG spectrum of hydrogen atom is similar to the typical atom HHG spectrum,which have a Decrease-Plateau-Cutoff structure.A kind of odd allowed,even forbidden selective phenomena of the order number of HHG are observed.The different pulse... |
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| Keywords: | TDDFT Ultra-strong femto-second laser HHG Hydrogen atomic |
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