| Intense Cherenkov-type terahertz electromagnetic radiation from ultrafast laser-plasma interaction |
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| 作者姓名： | 胡强林 刘世炳 李维 |
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| 作者单位： | Institute of Laser Engineering, Beijing
University of
Technology, Beijing 100022, China；Department of Physics, Jinggangshan University, Ji'an
343009, China;Institute of Laser Engineering, Beijing
University of
Technology, Beijing 100022, China;Institute of Laser Engineering, Beijing
University of
Technology, Beijing 100022, China |
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| 基金项目： | Project
supported by the National Natural Science Foundation of
China(Grant No 10574010). |
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| 摘 要： |
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| 关 键 词： | 辐射强度 切伦科夫 射线 脉冲 激光 等离子体 |
| 收稿时间： | 2006-10-24 |
| 修稿时间： | 2007-09-18 |
Intense Cherenkov-type terahertz electromagnetic radiation from ultrafast laser--plasma interaction |
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| Hu Qiang-Lin,Liu Shi-Bing and Li Wei.Intense Cherenkov-type terahertz electromagnetic radiation from ultrafast laser-plasma interaction[J].Chinese Physics B,2008,17(3):1050-1054. |
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| Authors: | Hu Qiang-Lin Liu Shi-Bing and Li Wei |
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| Institution: | Institute of Laser Engineering, Beijing
University of
Technology, Beijing 100022, China; Institute of Laser Engineering, Beijing
University of
Technology, Beijing 100022, China；Department of Physics, Jinggangshan University, Ji'an
343009, China |
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| Abstract: | A Cherenkov-type terahertz electromagnetic radiation is revealed,
which results efficiently from the collective effects in the
time-domain of ultrafast pulsed electron current produced by
ultrafast intense laser--plasma interaction. The emitted pulse
waveform and spectrum, and the dependence of laser pulse parameters
on the structure of the radiation field are investigated numerically.
The condition of THz radiation generation in this regime and
Cherenkov geometry of the radiation field are studied analytically. |
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| Keywords: | terahertz radiation Cherenkov ultrashort pulse laser plasma |
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