中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
利用二维光谱色散和透镜列阵改善靶面辐照均匀性

文献类型:期刊论文

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作者江秀娟 ; 周申蕾 ; 林尊琪
刊名中国激光
出版日期2007
卷号34期号:11页码:1533
关键词激光技术 laser technique 激光驱动器 laser driver 光谱色散平滑 smoothing by spectral dispersion 透镜列阵 lens array 衍射 diffraction 干涉 interference
ISSN号0258-7025
其他题名Improved Target Irradiation Uniformity Using Two-Dimensional Spectral Dispersion and Lens Array
中文摘要利用二维光谱色散平滑技术和透镜列阵(LA)来改善激光驱动器中靶面的辐照均匀性。通过消衍射透镜列阵可得到包络陡峭且中小空间尺度均匀性较好的焦斑。当在光路中加入二维光谱色散平滑单元后,光束在两个互相垂直的方向发生光谱色散,多光束干涉所引起的细密条纹也将在很大程度上被抹平,如果把横向热传导平滑效应也考虑在内,高空间频率的强度波动可进一步被消除。二维理论模拟结果表明采用该方案可获得顶部平坦边缘陡峭的焦斑,而且该方案无需仔细调整靶面的位置,实际应用较方便。; The target irradiation uniformity is improved by using two-dimensional smoothing by spectral dispersion and a lens array (LA). A pattern of steep edges and good middle-scale uniformity is obtained with a diffraction-weakened lens array. When two-dimensional spectral dispersion is employed in the laser chain, the beams experience spectral dispersion in two vertical directions, and the fine stripes caused by beamlets interference are smoothed out greatly. If the effect of lateral thermal conduction smoothing is taken into account, the high spatial-frequency intensity fluctuation can be eliminated further. Two-dimensional theoretic results indicate that a flat-topped and steep-edged target pattern can be achieved in this scheme. Because the position of the target does not require adjustment with high precision, the implement of this scheme is comparatively convenient.
分类号O433.5+4
收录类别EI
语种中文
公开日期2009-09-18
源URL[http://ir.siom.ac.cn/handle/181231/3182]  
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
江秀娟,周申蕾,林尊琪. 利用二维光谱色散和透镜列阵改善靶面辐照均匀性, Improved Target Irradiation Uniformity Using Two-Dimensional Spectral Dispersion and Lens Array[J]. 中国激光,2007,34(11):1533, 1537.
APA 江秀娟,周申蕾,&林尊琪.(2007).利用二维光谱色散和透镜列阵改善靶面辐照均匀性.中国激光,34(11),1533.
MLA 江秀娟,et al."利用二维光谱色散和透镜列阵改善靶面辐照均匀性".中国激光 34.11(2007):1533.

入库方式: OAI收割

来源:上海光学精密机械研究所

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