| 任意偏振激光作用下二维模型H原子的谐波发射 |
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| 引用本文： | 张春丽,冯志波,祁月盈,车继馨.任意偏振激光作用下二维模型H原子的谐波发射[J].物理学报,2011,60(8):83201-083201. |
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| 作者姓名： | 张春丽 冯志波 祁月盈 车继馨 |
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| 作者单位： | 1. 许昌学院电气信息工程学院,许昌 461000;
2. 北京应用物理与计算数学研究所,北京 100088;
3. 嘉兴学院数理与信息工程学院,嘉兴 314000;
4. 空军航空大学军械工程系,长春 130022 |
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| 基金项目： | 国家自然科学基金(批准号:10947122)资助的课题. |
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| 摘 要： | 采用二维渐近边界条件和辛算法数值求解了任意偏振激光和H原子相互作用的二维含时Schrödinger方程的无穷空间初值问题. 计算了二维H原子在不同偏振激光作用下的谐波发射,得到各种椭圆率下谐波谱的特点与已有文献结果一致.通过电子的基态布居概率和某一时刻的概率密度分布以及电子的平均位移,对不同椭圆率下谐波谱的特点进行了分析. 结果表明,将渐近边界条件和辛算法推广到二维是合理和有效的.
关键词：
二维渐近边界条件
辛算法
任意偏振激光
高次谐波
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| 关 键 词： | 二维渐近边界条件 辛算法 任意偏振激光 高次谐波 |
| 收稿时间： | 2010-10-07 |
High order harmonic generation from a two-dimensional model H atom in arbitrary polarized laser |
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| Zhang Chun-Li,Feng Zhi-Bo,Qi Yue-Ying and Che Ji-Xin.High order harmonic generation from a two-dimensional model H atom in arbitrary polarized laser[J].Acta Physica Sinica,2011,60(8):83201-083201. |
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| Authors: | Zhang Chun-Li Feng Zhi-Bo Qi Yue-Ying and Che Ji-Xin |
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| Institution: | College of Electric and Information Engineering, Xuchang University, Xuchang 461000, China; Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;College of Electric and Information Engineering, Xuchang University, Xuchang 461000, China;College of Mathematics, Physics and Information Engineering, Jiaxing University, Jiaxing 314000, China;Department of Ordnance Engineering, Aviation University of Air Force, Changchun 130022, China |
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| Abstract: | The two-dimensional time-dependent Schrödinger equation of arbitrary polarized laser pulse interacting with a model H atom is solved by using the two-dimensional asymptotic boundary condition (ABC) and symplectic algorithm. In order to investigate the influence of ellipticity on high order harmonic generation (HHG) of atom in arbitrary polarized laser field, we consider different ellipticities, and then compute the HHG for two-dimensional model H atom. Finally, we analyze the characteristics of HHG under different polarized laser fields. So it is reasonable and effective to extend the one-dimensional ABC and symplectic algorithm to the problem of laser interacting with a two-dimensional model atom. |
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| Keywords: | two-dimensional asymptotic boundary condition symplectic algorithm arbitrary polarization laser high-order harmonic generation |
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