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| 采用适宜靶原子提高高次谐波的转化效率 | |
| 引用本文： | 陈基根,杨玉军,李琛,曾思良. 采用适宜靶原子提高高次谐波的转化效率[J]. 原子与分子物理学报, 2007, 24(4): 671-674 |
| 作者姓名： | 陈基根 杨玉军 李琛 曾思良 |
| 作者单位： | 1. 台州学院物理系,临海,317000 2. 吉林大学原子与分子物理研究所,长春,130012;吉林大学理论化学研究所,长春,130012 3. 北京应用物理与计算数学研究所,北京,100088 |
| 基金项目： | 吉林大学校科研和教改项目;台州学院校立重点项目 |
| 摘 要： | 通过对影响谐波转化效率因素的分析,提出选择适宜的靶原子对象,即选择在高能区具有较强连续态-基态耦合强度的靶原子,可以优化高次谐波的发射条件.本文的数值实验结果表明,利用该方案,可以把平台区尾部谐波的转化效率提高两个数量级. |
| 关 键 词： | 高次谐波 模型原子 谐波转化效率 基态和连续态耦合强度 |
| 文章编号： | 1000-0364（2007）04-0671-04 |
| 收稿时间： | 2006-05-08 |
| 修稿时间： | 2006-05-08 |
The enhancement of the conversion efficiency of high-order harmonic generation by a suitable atom |
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| CHEN Ji-gen,YANG Yu-jun,LI Chen,ZENG Si-liang. The enhancement of the conversion efficiency of high-order harmonic generation by a suitable atom[J]. Journal of Atomic and Molecular Physics, 2007, 24(4): 671-674 | |
| Authors: | CHEN Ji-gen YANG Yu-jun LI Chen ZENG Si-liang |
| Affiliation: | 1. Deparmaent of Physics, Taizhou University, Linhai 317000 ,China; 2. Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China; 3. Institute of Theoretical Chemistry, Jilin University, Changchun 130012, China; 4. Institute of Applied Physics and Computational Mathematics, Beijing 100088 ,China |
| Abstract: | By analyzing the factors affecting the conversion efficiency of high-order harmonic generation(HHG),we suggest to employ the suitable atom to enhance the efficiency of the HHG.The suitable atom has intense coupling strengths between the ground state and the continuum states.With this way,our numerical results show the efficiencies of the harmonics near the plateau cutoff position are enhanced two orders of magnitude. |
| Keywords: | high-order harmonic generation the model atom the conversion efficiency of high-order harmonic generation the coupling strengths between the ground state and the continuum states |
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