| Influence of circular aperture on high-order harmonic generation |
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| 引用本文： | 刘婷婷,陆伟新,王大威,杨宏,龚旗煌. Influence of circular aperture on high-order harmonic generation[J]. 中国光学快报(英文版), 2003, 1(6) |
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| 作者姓名： | 刘婷婷 陆伟新 王大威 杨宏 龚旗煌 |
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| 作者单位： | Department of Physics & State Key Laboratory for Mesoscopic Physics，Peking University，Beijing 100871，Department of Physics & State Key Laboratory for Mesoscopic Physics，Peking University，Beijing 100871，Department of Physics & State Key Laboratory for Mesoscopic Physics，Peking University，Beijing 100871，Department of Physics & State Key Laboratory for Mesoscopic Physics，Peking University，Beijing 100871，Department of Physics & State Key Laboratory for Mesoscopic Physics，Peking University，Beijing 100871 |
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| 基金项目： | This work was supported by the National Key Basic Research Special Foundation (NKBRSF) under Grant No. TG1999075207，National Natural Science Foundation of China under Grant No. 90206003 and 90101027. |
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| 摘 要： | The influence of circular aperture on the intensity of high-order harmonic generation (HHG) with intense femtosecond laser pulse was studied both experimentally and theoretically. The intensity variety of HHG with the diameter of circular aperture was observed in pulsed Ar gas. The result was discussed and interpreted in terms of the theory of Hankel transform. It is found that using the Gaussian beam truncated by an aperture could enhance the conversion efficiency of HHG at certain conditions.
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Influence of circular aperture on high-order harmonic generation |
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| Abstract: | The influence of circular aperture on the intensity of high-order harmonic generation (HHG) with intense femtosecond laser pulse was studied both experimentally and theoretically. The intensity variety of HHG with the diameter of circular aperture was observed in pulsed Ar gas. The result was discussed and interpreted in terms of the theory of Hankel transform. It is found that using the Gaussian beam truncated by an aperture could enhance the conversion efficiency of HHG at certain conditions. |
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