| Enhancement of Bichromatic High-Order Harmonic Generation by a Strong Laser Field and Its Third Harmonic |
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| 引用本文： | 皮良文 史庭云 乔豪学. Enhancement of Bichromatic High-Order Harmonic Generation by a Strong Laser Field and Its Third Harmonic[J]. 中国物理快报, 2006, 23(6): 1490-1493 |
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| 作者姓名： | 皮良文 史庭云 乔豪学 |
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| 作者单位： | [1]Department of Physics, Wuhan University, Wuhan 430072 [2]Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10374074. We thank Jun Cai and Chunlei Xiong for beneficial discussion. |
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| 摘 要： | We investigate high-order harmonic generation （HHG） in a linearly polarized bichromatic field composed of a fundamental laser field with frequency w and an additional laser field with frequency 3w. The numerical results show that it is possible to enhance the intensity of most high harmonics in orders of magnitude. A most striking feature in the enhancement is that the intensity of several special high harmonics is practically impaired as compared with that in the monochromatic case. The qualitative explanation to the great enhancement is that the additional high-frequency field can provide new transition paths for electrons to reach the continuum. The relative phase between the fundamental field and its third harmonic field also affects the intensity of high-order harmonics near the cutoff efficiently.
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| 关 键 词： | 增值 谐波 强激光场 附加激光场 |
| 收稿时间： | 2006-02-23 |
| 修稿时间： | 2006-02-23 |
Enhancement of Bichromatic High-Order Harmonic Generation by a Strong Laser Field and Its Third Harmonic |
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| PI Liang-Wen,SHI Ting-Yun,QIAO Hao-Xue. Enhancement of Bichromatic High-Order Harmonic Generation by a Strong Laser Field and Its Third Harmonic[J]. Chinese Physics Letters, 2006, 23(6): 1490-1493 |
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| Authors: | PI Liang-Wen SHI Ting-Yun QIAO Hao-Xue |
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| Affiliation: | Department of Physics, Wuhan University, Wuhan 430072Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 |
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| Abstract: | |
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| Keywords: | 42.65.Ky 32.80.Rm |
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