兰燕平 Lan Yanping, 胡俊涛 Hu Juntao, 孙卓 Sun Zhuo, 王逸舒 Wang Yishu, 叶文妮 Ye Wenni, 钱义先 Qian Yixian
{"title":"光学焦散线的任意无衍射结构光场调控","authors":"兰燕平 Lan Yanping, 胡俊涛 Hu Juntao, 孙卓 Sun Zhuo, 王逸舒 Wang Yishu, 叶文妮 Ye Wenni, 钱义先 Qian Yixian","doi":"10.3788/aos230433","DOIUrl":"https://doi.org/10.3788/aos230433","url":null,"abstract":"","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70404784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
聂栩 Nie Xu, 王祖军 Wang Zujun, 王百川 Wang Baichuan, 薛院院 Xue Yuanyuan, 黄港 Huang Gang, 赖善坤 Lai Shankun, 唐宁 Tang Ning, 王茂成 Wang Maocheng, 赵铭彤 Zhao Mingtong, 杨馥羽 Yang Fuyu, 王忠明 Wang Zhongming
{"title":"不同偏置条件下CMOS图像传感器质子辐照损伤效应的实验与分析","authors":"聂栩 Nie Xu, 王祖军 Wang Zujun, 王百川 Wang Baichuan, 薛院院 Xue Yuanyuan, 黄港 Huang Gang, 赖善坤 Lai Shankun, 唐宁 Tang Ning, 王茂成 Wang Maocheng, 赵铭彤 Zhao Mingtong, 杨馥羽 Yang Fuyu, 王忠明 Wang Zhongming","doi":"10.3788/aos230592","DOIUrl":"https://doi.org/10.3788/aos230592","url":null,"abstract":"应用在空间辐射环境下的互补金属氧化物半导体图像传感器（CIS）会受到高能质子辐照损伤，导致性能退化，严重时甚至功能失效。为了分析CIS高能质子辐照损伤机理，本文以0.18 μm工艺CIS为研究对象，利用西安200 MeV质子应用装置开展了注量分别为1×1010、5×1010、1×1011 p/cm2的100 MeV质子辐照实验。获得了单粒子瞬态响应的典型特征和暗信号、暗信号分布、暗信号尖峰及随机电码信号（RTS）等敏感参数的退化规律，揭示了不同偏置条件和不同注量下CIS高能质子辐照损伤的物理机制。实验结果表明：对暗信号而言，加偏置条件比未加偏置条件变化显著；质子辐照诱发的位移损伤和电离损伤引起暗信号的增大；位移损伤诱发的体缺陷诱发暗信号尖峰的产生，且随着辐照注量的增大而增多；空间电荷区中不同类型的体缺陷导致两能级和多能级RTS的产生。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
王甜甜 Wang Tiantian, 何迪 He Di, 刘畅 Liu Chang, 邱钧 Qiu Jun
{"title":"基于频谱集中程度的重参数化在光场去噪中的应用","authors":"王甜甜 Wang Tiantian, 何迪 He Di, 刘畅 Liu Chang, 邱钧 Qiu Jun","doi":"10.3788/aos230659","DOIUrl":"https://doi.org/10.3788/aos230659","url":null,"abstract":"从频谱支集对称程度及夹角两个结构特点出发，分析频谱支集结构变化对于去噪效果的影响，提出光场频谱支集集中程度的概念，并设计相应的度量函数。通过极小化集中程度度量函数，计算合适的光场双平面间距，按照此间距在去噪前对光场数据进行重参数化可以提高滤波去噪效果。HCI模拟光场数据和斯坦福实测光场数据实验结果表明，引入重参数化的光场滤波去噪方法能够优化去噪结果。从视觉上看，在滤除更多噪点的同时保留场景更多的结构和纹理信息；从定量评价上看，峰值信噪比和结构相似度指标也有所提高。","PeriodicalId":7103,"journal":{"name":"Acta Optica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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