Short-pulse laser absorption in very steep plasma density gradients
文献类型：期刊论文
| 作者 | Cai Hong-bo ; Yu Wei ; Zhu Shao-ping ; Zheng Chun-yang ; Cao Li-hua ; Li Bin ; Chen Z. Y. ; Bogerts A. |
| 刊名 | phys. plasmas
 |
| 出版日期 | 2006 |
| 卷号 | 13期号:9页码:94504 |
| 关键词 | BREAKING TARGETS LIGHT |
| ISSN号 | 1070-664x |
| 中文摘要 | an analytical fluid model for resonance absorption during the oblique incidence by femtosecond laser pulses on a small-scale-length density plasma [k(0)l is an element of(0.1,10)] is proposed. the physics of resonance absorption is analyzed more clearly as we separate the electric field into an electromagnetic part and an electrostatic part. it is found that the characteristics of the physical quantities (fractional absorption, optimum angle, etc.) in a small-scale-length plasma are quite different from the predictions of classical theory. absorption processes are generally dependent on the density scale length. for shorter scale length or higher laser intensity, vacuum heating tends to be dominant. it is shown that the electrons being pulled out and then returned to the plasma at the interface layer by the wave field can lead to a phenomenon like wave breaking. this can lead to heating of the plasma at the expanse of the wave energy. it is found that the optimum angle is independent of the laser intensity while the absorption rate increases with the laser intensity, and the absorption rate can reach as high as 25%. (c) 2006 american institute of physics. |
| 收录类别 | EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000240877800057 |
| 公开日期 | 2009-09-18 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/744]  |
| 专题 | 上海光学精密机械研究所_强场激光物理国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Cai Hong-bo,Yu Wei,Zhu Shao-ping,et al. Short-pulse laser absorption in very steep plasma density gradients[J]. phys. plasmas,2006,13(9):94504. |
| APA | Cai Hong-bo.,Yu Wei.,Zhu Shao-ping.,Zheng Chun-yang.,Cao Li-hua.,...&Bogerts A..(2006).Short-pulse laser absorption in very steep plasma density gradients.phys. plasmas,13(9),94504. |
| MLA | Cai Hong-bo,et al."Short-pulse laser absorption in very steep plasma density gradients".phys. plasmas 13.9(2006):94504. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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