激光与光电子学进展, 2012, 49 (5): 053001, 网络出版: 2012-04-01
分布式相位板联合二维谱色散匀滑的实验研究
Experimental Study of Two-Dimensional Smoothing by Spectral Dispersion with Distributed Phase Plates
激光技术 谱色散匀滑 分布式相位板 激光辐照均匀性 laser technique smoothing by spectral dispersion distributed phase plate laser irradiation uniformity
摘要
在神光II九路装置上，利用谱色散匀滑(SSD)技术结合分布式相位板(DPP)技术，研究了激光焦斑在一维、二维谱色散匀滑下的分布。结果表明，一维谱色散匀滑使焦斑的焦斑通量对比度由0.7634[均方根（RMS）]下降到0.3685（RMS），结合二维匀滑下降到0.2638（RMS）；并结合各种评价方法对焦斑进行分析。实验为谱色散匀滑技术在神光II在线应用提供了参考。
Abstract
Two-dimensional performance of uniform irradiation with the smoothing by spectral dispersion (SSD) and distributed phase plates (DPP) is researched on the SG II laser facility. The results of experiments in free space show that 1D-SSD makes the root mean square (RMS) focus drop to 0.3685 from 0.7634 (without SSD), and 2D-SSD supplied RMS is 0.2638. Other appraising methods of focus verify the conclusion. This experiment is especially meaningful for on-line 2D-SSD experiment.
冯伟, 李菁辉, 周申蕾, 张琥杰, 邬融, 姜有恩, 朱俭, 马伟新. 分布式相位板联合二维谱色散匀滑的实验研究[J]. 激光与光电子学进展, 2012, 49(5): 053001. Feng Wei, Li Jinghui, Zhou Shenlei, Zhang Hujie, Wu Rong, Jiang Youen, Zhu Jian, Ma Weixin. Experimental Study of Two-Dimensional Smoothing by Spectral Dispersion with Distributed Phase Plates[J]. Laser & Optoelectronics Progress, 2012, 49(5): 053001.
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