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| 超热电子能谱分布各向异性的实验研究 | |
| 引用本文： | 王光昶,郑志坚,陈涛,张婷,邓利.超热电子能谱分布各向异性的实验研究[J].光电子．激光,2007,18(8):973-976. |
| 作者姓名： | 王光昶 郑志坚 陈涛 张婷 邓利 |
| 作者单位： | 1. 成都医学院物理教研室,四川,成都,610081;中国工程物理研究所,激光聚变研究中心,四川,绵阳,621900 2. 中国工程物理研究所,激光聚变研究中心,四川,绵阳,621900 3. 成都医学院物理教研室,四川,成都,610081 |
| 基金项目： | 国家自然科学基金 , 四川省青年科技基金 , 成都医学院校科研和教改项目 |
| 摘 要： | 报道了100 TW超短脉冲钛宝石激光装置上飞秒激光-固体靶相互作用中超热电子的能谱测量,获得了各向异性分布的超热电子能谱.靶前激光反射方向超热电子能谱和靶前法线方向超热电子能谱类似,呈单温类Maxwell分布;而靶后激光传播方向超热电子能谱出现高能尾部;靶前法线方向超热电子的产额比靶后激光传播方向和靶前激光反射方向要高得多.对以上形成的原因进行了分析. |
| 关 键 词： | 飞秒激光 超热电子 能谱 产额 各向异性 |
| 文章编号： | 1005-0086（2007）08-0973-04 |
| 修稿时间： | 2006-08-31 |
Experimental Investigation of Anisotropy Energy Spectrum Distribution of the Hot Electrons |
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| WANG Guang-chang,ZHENG Zhi-jian,CHEN Tao,ZHANG Ting,DENG Li.Experimental Investigation of Anisotropy Energy Spectrum Distribution of the Hot Electrons[J].Journal of Optoelectronics·laser,2007,18(8):973-976. | |
| Authors: | WANG Guang-chang ZHENG Zhi-jian CHEN Tao ZHANG Ting DENG Li |
| Affiliation: | 1. Teaching and Research Section of Physics,Chengdu Medical College,Chengdu 610081 ,China; 2. Research Cen ter of Laser Fusion,Chinese Academy of Engineering Physics, Mianyang 621900, China |
| Abstract: | Hot electron spectrum in the interaction of femtosecond laser with solid target was measured, and the anisotropy energy spectrum distribution of hot electron was obtained. In front normal direction and laser reverberation direction, the spectrum is a Maxwellian-like distribution;Along the rear laser propagation,the spectrum exists a high energy tail;The yield of hot electrons in front normal direction is higher than that in the laser reverberation direction of the target surface and along rear laser propagation. All results are induced by nonlinear effect. |
| Keywords: | femtosecond laser hot electron energy spectrum yield anisotropy |
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