中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
激光功率密度对Al膜靶后表面快电子发射的影响

文献类型:期刊论文

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作者张淼 ; 王琛 ; 方智恒 ; 王瑞荣 ; 傅思祖 ; 顾援 ; 林尊琪
刊名强激光与粒子束
出版日期2005
卷号17期号:11页码:1696
关键词皮秒激光 Piconsecond laser 铝薄膜靶 pulse Al foil target 快电子 Fast electron 角分布 Angular distribution 能谱分布 Energy spectra
ISSN号1001-4322
其他题名Laser intensity effects on forward hot electrons in interaction with Al foil
中文摘要报道了在20 TW皮秒激光器上完成的p偏振激光与等离子体相互作用过程中产生的快电子的角分布和能谱测量结果.实验得到:当激光功率密度小于1017 W/cm^2时,电子发射没有明显定向性,在激光入射面内多峰发射;当激光功率密度大于1017 W/cm^2,小于1018 W/cm^2时,电子主要沿靶面法线方向发射;当激光功率密度达到相对论强度时,电子主要沿激光传播方向发射;激光功率密度未达到相对论强度时,靶后表面法线方向快电子能谱拟合平均温度符合共振吸收温度定标率;激光功率密度达相对论强度以上时,靶后表面法线方向; The characteristics of the forward hot electrons produced by 20 TW p-polarized picosecond laser-plasma interactions are studied at laser intensities from subrelativistic to relativistic.The spatial distribution of forward hot electrons is multi-peak distribution,as laser intensity is under 107 W/cm2.When laser intensity is between 1017 and 1018>/sup> W/cm2,the peak of the hot electron beam is along the target normal direction.The peak of the hot electron beam shifts to the laser propagation direction from the target normal direction as the laser intensity reaches the relativistic.The temperature of hot electrons fit resonance absorption scaling law as the laser intensity under the relativistic.The temperature of hot electrons is much higher than that expected by the empirical scaling law as the laser intensity reaches the relativistic.
分类号O434.12
收录类别ei
语种中文
公开日期2009-09-18 ; 2010-10-12
源URL[http://ir.siom.ac.cn/handle/181231/3072]  
专题上海光学精密机械研究所_高功率激光物理国家实验室
推荐引用方式
GB/T 7714
张淼,王琛,方智恒,等. 激光功率密度对Al膜靶后表面快电子发射的影响, Laser intensity effects on forward hot electrons in interaction with Al foil[J]. 强激光与粒子束,2005,17(11):1696, 1700.
APA 张淼.,王琛.,方智恒.,王瑞荣.,傅思祖.,...&林尊琪.(2005).激光功率密度对Al膜靶后表面快电子发射的影响.强激光与粒子束,17(11),1696.
MLA 张淼,et al."激光功率密度对Al膜靶后表面快电子发射的影响".强激光与粒子束 17.11(2005):1696.

入库方式: OAI收割

来源:上海光学精密机械研究所

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