| Absence of Charge-Resonance-Enhanced Ionization in Attosecond Pulse Photoionization： Numerical Result on One-Dimensional H2^＋ |
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| 引用本文： | 张喆,张贵忠,向望华,希尔三世.Absence of Charge-Resonance-Enhanced Ionization in Attosecond Pulse Photoionization： Numerical Result on One-Dimensional H2^＋[J].中国物理快报,2006,23(6):1445-1447. |
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| 作者姓名： | 张喆 张贵忠 向望华 希尔三世 |
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| 作者单位： | [1]Key Lab of Optoelectronic Information and Technical Science, College of Precision Instrument and Optoelectronics Engineering （Ministry of Education）, Tianjin 300072 [2]Institute of Physical Science and Technology, University of Maryland, College Park, MD20742, USA |
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| 基金项目： | Supported by Tianjin Municipal Government, Project number 043601011. |
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| 摘 要： | We present a numerical result of photoionization rate for the one-dimensional molecular hydrogen ion model exposed to intense light of 1 × 10^16-2×10^16 W/cm^2, 55-as pulse duration, and 800nm wavelength. In contrast to the previous calculation result of charge-resonance-enhanced ionization for lower intensity and much longer pulse, our result exhibits an ionization saturation. The numerical results are interpreted in the field-dressed potential picture as over-the-barrier liberation of electrons. This extremely short pulsewidth and relatively high field phenomenon requests experimental demonstration.
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| 关 键 词： | 谐振增强电离 脉冲 光致电离 数字结果 激光脉冲宽度 |
| 收稿时间： | 2006-03-08 |
| 修稿时间： | 2006-03-08 |
Absence of Charge-Resonance-Enhanced Ionization in Attosecond Pulse Photoionization: Numerical Result on One-Dimensional H2+ |
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| ZHANG Zhe,ZHANG Gui-Zhong,XIANG Wang-Hua,W. T. Hill III.Absence of Charge-Resonance-Enhanced Ionization in Attosecond Pulse Photoionization: Numerical Result on One-Dimensional H2+[J].Chinese Physics Letters,2006,23(6):1445-1447. |
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| Authors: | ZHANG Zhe ZHANG Gui-Zhong XIANG Wang-Hua W T Hill III |
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| Institution: | Key Lab of Optoelectronic Information and Technical Science, College of Precision Instrument and Optoelectronics Engineering (Ministry of Education), Tianjin 300072
Institute of Physical Science and Technology, University of Maryland, College Park, MD20742, USA |
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| Abstract: | We present a numerical result of photoionization rate for the one-dimensional molecular hydrogen ion model exposed to intense light of 1×1016-2×1016W/cm2, 55-as pulse duration, and 800nm wavelength. In contrast to the previous calculation result of charge-resonance-enhanced ionization for lower intensity and much longer pulse, our result exhibits an ionization saturation. The numerical results are interpreted in the field-dressed potential picture as over-the-barrier liberation of electrons. This extremely short pulsewidth and relatively high field phenomenon requests experimental demonstration. |
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| Keywords: | 31 15 Qg 33 80 Rv 32 80 Rm |
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