| 不同后处理方法对溶胶-凝胶SiO2膜层抗污染能力的影响 |
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| 引用本文： | 王峰,彭晓世,刘慎业,蒋小华,丁永坤.不同后处理方法对溶胶-凝胶SiO2膜层抗污染能力的影响[J].强激光与粒子束,2009,21(2):0. |
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| 作者姓名： | 王峰 彭晓世 刘慎业 蒋小华 丁永坤 |
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| 作者单位： | 1.中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621 900; |
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| 摘 要： | 以正硅酸乙酯作为前驱体，利用碱催化方式制备了SiO2溶胶，采用提拉法在K9基片上镀制SiO2单层薄膜，分别用热处理、紫外辐射处理、氨水加六甲基二硅胺烷气氛处理和酸碱复合膜4种后处理法对膜层进行处理，采用分光光度计、红外光谱、扫描探针显微镜、静滴接触角测量仪、椭偏仪等分析了薄膜的特性，通过真空环境加速污染实验对处理前后的膜层进行抗污染能力对比，结果表明:在碱性SiO2膜层上加镀一层酸性SiO2膜的复合膜层整体透过率仍保持在99%以上，疏水角达到128°，膜层真空抗污染能力大大加强。
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| 关 键 词： | 溶胶-凝胶 SiO2 加速污染 化学膜 膜层后处理 |
| 收稿时间： | 1900-01-01; |
Preprocess method for speckle interference image based on spin filtering |
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| Wang Feng,Peng Xiaoshi,Liu Shenye,Jiang Xiaohua,Ding Yongkun.Preprocess method for speckle interference image based on spin filtering[J].High Power Laser and Particle Beams,2009,21(2):0. |
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| Authors: | Wang Feng Peng Xiaoshi Liu Shenye Jiang Xiaohua Ding Yongkun |
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| Affiliation: | 1.Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China;2.Department of Applied Physics,University of Electronic Science and Technology of China,Chengdu 610054,China |
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| Abstract: | This paper introduces the filter effect after the image with speckle noise is processed by different spin filters window. Comparing the images processed by spin filters, it is proved that the spin filter window should be one-fourth of the fringe width, and must be larger than the speckle size to filter off noise for images with large speckle noise. The gray scale extension has been applied for the fringe image to increase the fringe contrast, which was reduced by the spin and median filter. |
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| Keywords: | speckle noise median filtering interference image preprocess |
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