Plasma density gratings induced by intersecting laser pulses in underdense plasmas
文献类型：期刊论文
| 作者 | Sheng, ZM ; Zhang, J ; Umstadter, D |
| 刊名 | APPLIED PHYSICS B-LASERS AND OPTICS
 |
| 出版日期 | 2003 |
| 卷号 | 77期号:6-7页码:673 |
| 关键词 | RELATIVISTIC HARMONIC-GENERATION SOLID TARGETS INTENSE LASER ENERGY-TRANSFER POWER TRANSFER WAKE FIELDS BEAMS WAVES DIFFRACTION SURFACES |
| ISSN号 | 0946-2171 |
| 通讯作者 | Sheng, ZM (reprint author), Chinese Acad Sci, Inst Phys, Lab Opt Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Electron and ion density gratings induced by two intersecting ultrashort laser pulses at intensities of 10(16) W/cm(2) or lower are investigated. The ponderomotive force generated by the inhomogeneous intensity distribution in the intersecting region of the interfering pulses produces deep electron and ion density modulations at a wavelength less than a laser wavelength in vacuum. Dependence of the density modulation on the plasma densities, temperatures, and the ion mass, as well as the laser pulse parameters are studied analytically and by particle-in-cell simulations. It is found that the density peaks of such gratings can be a few times that of the initial plasma density and last as long as a few picoseconds. It is also demonstrated that the scattering of signal pulses by such a bulk density grating results in high-harmonic generation. The density gratings may be incorporated into ion-ripple lasers [K.R. Chen and J.M. Dawson, Phys. Rev. Lett. 68, 29 (1992)] to generate ultrashort X-ray pulses of a few angstroms by using electron beams at only a few tens of MeV only. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51049]  |
| 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 | Sheng, ZM,Zhang, J,Umstadter, D. Plasma density gratings induced by intersecting laser pulses in underdense plasmas[J]. APPLIED PHYSICS B-LASERS AND OPTICS,2003,77(6-7):673. |
| APA | Sheng, ZM,Zhang, J,&Umstadter, D.(2003).Plasma density gratings induced by intersecting laser pulses in underdense plasmas.APPLIED PHYSICS B-LASERS AND OPTICS,77(6-7),673. |
| MLA | Sheng, ZM,et al."Plasma density gratings induced by intersecting laser pulses in underdense plasmas".APPLIED PHYSICS B-LASERS AND OPTICS 77.6-7(2003):673. |
入库方式： OAI收割
来源：物理研究所
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