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| 激光等离子体的电子温度对Thomson散射离子声波双峰的影响 | |
| 引用本文： | 于全芝,李玉同,蒋小华,刘永刚,王哲斌,董全力,刘峰,张喆,黄丽珍,C.Danson,D.Pepler,丁永坤,傅世年,张杰.激光等离子体的电子温度对Thomson散射离子声波双峰的影响[J].物理学报,2007,56(1):359-365. |
| 作者姓名： | 于全芝 李玉同 蒋小华 刘永刚 王哲斌 董全力 刘峰 张喆 黄丽珍 C.Danson D.Pepler 丁永坤 傅世年 张杰 |
| 作者单位： | 1. 中国科学院物理研究所光物理实验室,北京,100080;中国科学院高能物理研究所加速器中心,北京,100049 2. 中国科学院物理研究所光物理实验室,北京,100080 3. 中国工程物理研究院高温高密度等离子体物理国际重点实验室,绵阳,621900 4. 中国科学技术大学近代物理系,合肥,230027 5. Central Laser Facility,Rutherford Appleton Laboratory,Didcot,OX110QX,UK 6. 中国科学院高能物理研究所加速器中心,北京,100049 |
| 基金项目： | 国家自然科学基金;国家高技术惯性约束核聚变主题 |
| 摘 要： | 通过对不同激光条件产生的等离子体进行Thomson散射实验诊断，发现在距靶面为150 μm的临界密度面内，离子声波双峰强度出现明显的不对称性，而且强峰的位置发生了转移：当等离子体的电子温度较高时，强峰出现在短波方向；当等离子体电子温度较低时，强峰出现在长波方向.光的拉曼散射效应对应地解释了离子声波的双峰结构、双峰强度不对称性及强峰出现的位置.建立了光的拉曼散射与电子的Thomson散射的对应关系. |
| 关 键 词： | 激光等离子体 Thomson散射 离子声波双峰 拉曼散射 |
| 文章编号： | 1000-3290/2007/56(01)/0359-07 |
| 收稿时间： | 2006-04-12 |
| 修稿时间： | 04 12 2006 12:00AM |
Infulence of electron temperature on the two peaks of Thomson scattering ion-acoustic waves in laser plasmas |
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| Yu Quan-Zhi,Li Yu-Tong,Jiang Xiao-Hua,Liu Yong-Gang,Wang Zhe-Bin,Dong Quan-Li,Liu Feng,Zhang Zhe,Huang Li-Zhen,C.Danson,D.Pepler,Ding Yong-Kun,Fu Shi-Nian,Zhang Jie.Infulence of electron temperature on the two peaks of Thomson scattering ion-acoustic waves in laser plasmas[J].Acta Physica Sinica,2007,56(1):359-365. | |
| Authors: | Yu Quan-Zhi Li Yu-Tong Jiang Xiao-Hua Liu Yong-Gang Wang Zhe-Bin Dong Quan-Li Liu Feng Zhang Zhe Huang Li-Zhen CDanson DPepler Ding Yong-Kun Fu Shi-Nian Zhang Jie |
| Institution: | 1;Key Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; 2 |
| Abstract: | With the effective Thomson scattering diagnostic of the laser plasmas produced under different laser conditions, the distinct asymmetry of the two peaks of the ion-acoustic waves are measured 150 μm in front of the target surface. The more intense peak appears at shorter wavelength when the electron temperature is higher, and switches to longer wavelength when the electron temperature is lower. The two-peak strcture, the asymmetry and the position of the more intensity peak of the ion-acoustic waves can be well interpreted with the Raman scattering effect. This paper, for the first time, establishes the corresponding relationship between Raman scattering of light and Thomson scattering of electons in laser plasmas. |
| Keywords: | laser plasmas Thomson scattering two peaks of ion-acoustic waves Raman scattering |
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