Ultrafast XUV emission from laser wakefields in underdense plasma
文献类型：期刊论文
| 作者 | Liu, Y ; Sheng, ZM ; Zheng, J ; Li, FY ; Xu, XL ; Lu, W ; Mori, WB ; Liu, CS ; Zhang, J |
| 刊名 | NEW JOURNAL OF PHYSICS
 |
| 出版日期 | 2012 |
| 卷号 | 14 |
| 关键词 | X-RAYS PULSES INTENSE BREMSSTRAHLUNG ACCELERATION ELECTRONS WAVES FIELD |
| ISSN号 | 1367-2630 |
| 通讯作者 | Sheng, ZM (reprint author), Shanghai Jiao Tong Univ, Minist Educ, Key Lab Laser Plasmas, Shanghai 200240, Peoples R China. |
| 中文摘要 | It is shown that a laser wakefield driven in the highly nonlinear regime or the wave-breaking regime in underdense plasma can emit ultrabroad-band bright extreme ultraviolet (XUV) radiation pulses, which are as short as a few hundreds of attoseconds in one-dimensional simulations and a few femtoseconds in multi-dimensional cases. The emission is caused by a transverse current sheet co-moving with the laser pulse. This current sheet is formed by an electron density spike with trapped electrons in the wakefield with a certain transverse kinetic momentum of electrons left behind the laser pulse. This residual momentum appears when the laser pulse undergoes a strong self-modulation and subsequent pulse steepening at the front. In the multi-dimensional simulations, the XUV emission is found only near the laser axis with a much smaller spot size than the laser pulse due to its transverse ponderomotive force effects. The present scheme provides an alternative method for producing single bright ultrashort XUV pulses for ultrafast applications. |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China [2009GB105002]; National Science Foundation of China [11121504, 11075105] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46324]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liu, Y,Sheng, ZM,Zheng, J,et al. Ultrafast XUV emission from laser wakefields in underdense plasma[J]. NEW JOURNAL OF PHYSICS,2012,14. |
| APA | Liu, Y.,Sheng, ZM.,Zheng, J.,Li, FY.,Xu, XL.,...&Zhang, J.(2012).Ultrafast XUV emission from laser wakefields in underdense plasma.NEW JOURNAL OF PHYSICS,14. |
| MLA | Liu, Y,et al."Ultrafast XUV emission from laser wakefields in underdense plasma".NEW JOURNAL OF PHYSICS 14(2012). |
入库方式： OAI收割
来源：物理研究所
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