| H2+和H3+系统的电子频谱与高次谐波谱 |
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| 引用本文： | 代春燕,于川,张贵忠,向望华,姚建铨. H2+和H3+系统的电子频谱与高次谐波谱[J]. 强激光与粒子束, 2012, 24(6): 1311-1314. DOI: 10.3788/HPLPB20122406.1311 |
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| 作者姓名： | 代春燕 于川 张贵忠 向望华 姚建铨 |
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| 作者单位： | 1.天津大学 精密仪器与光电子工程学院, 光电子信息技术科学教育部重点实验室, 天津 300072 |
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| 摘 要： | 针对单电子H2+和双电子H3+系统，采用对称分裂算符法求解波函数的时间演化。计算了电子的含时频谱和体系的高次谐波谱，结果表明:电子频谱和高次谐波谱呈互补规律，即电子频谱峰值出现在基波的偶数倍频率位置，高次谐波则出现在奇数位置。对高次谐波谱随软化库仑参数的变化规律进行了数值研究，发现只在软化库仑参数的一定范围内才产生高次谐波，对该现象作了解释。
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| 关 键 词： | 高次谐波 H3+系统 库仑势参数 电子频谱 |
| 收稿时间： | 2011-11-08 |
Electron and high-harmonic generation spectra of H2 + and H3+ systems |
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| Dai Chunyan , Yu Chuan , Zhang Guizhong , Xiang Wanghua , Yao Jianquan. Electron and high-harmonic generation spectra of H2 + and H3+ systems[J]. High Power Laser and Particle Beams, 2012, 24(6): 1311-1314. DOI: 10.3788/HPLPB20122406.1311 |
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| Authors: | Dai Chunyan Yu Chuan Zhang Guizhong Xiang Wanghua Yao Jianquan |
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| Affiliation: | 1.Key Laboratory of Optoelectronic Information Science and Technology of Ministry of Education,College of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China |
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| Abstract: | The paper presents our numerical simulations on single-electron H2+ and two-electron H3+ systems with the symmetric split operator technique. The results show that the electron spectra are complementary to the conventional high-harmonic generation(HHG) spectra: the electron spectra feature peaks located at even harmonics, while the HHG spectra’ peaks are at odd-numbered positions. Only limited values of the core-softening parameter can support HHG, and some preliminary explanation is given. |
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| Keywords: | high-harmonic generation H3+ system core-softening parameter electron spectra |
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