{"title":"层状高温超导体中约瑟夫森等离子体模式太赫兹二维相干光谱的理论研究","authors":"李子龙 Li Zilong, 万源 Wan Yuan","doi":"10.3788/cjl230796","DOIUrl":"https://doi.org/10.3788/cjl230796","url":null,"abstract":"研究了层状高温超导体中约瑟夫森等离子体模式对电场的非线性响应及对应的太赫兹二维相干光谱。从半经典有效模型出发，推导出了约瑟夫森相位的运动方程。通过求解这一运动方程，发现太赫兹二维相干光谱中存在“泵浦-探测”信号、回波信号、失相信号和双量子相干信号。进一步将这些信号与刘维尔路径联系起来，说明体系的具体激发过程，并借此说明这些信号的潜在应用。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135152231","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}
{"title":"正交相位编码的同轴全息加密存储系统的研究","authors":"宋海洋 Song Haiyang, 李枷楠 Li Jianan, 范琳琳 Fan Linlin, 林达奎 Lin Dakui, 王琨 Wang Kun, 林枭 Lin Xiao, 谭小地 Tan Xiaodi","doi":"10.3788/cjl230696","DOIUrl":"https://doi.org/10.3788/cjl230696","url":null,"abstract":"通过调制具有不同编码单元的参考光，对信息光进行分页式加密存储。提出两种参考光编码加密模式，即扇形参考光编码模式和随机位置参考光编码模式，并对这两种方法进行验证。实验结果表明，这两种方式都通过正交相位编码完成加密解密的过程。对两种方法的加密性进行评估，不同密钥对应的加密信息之间的相似度均值分别为0.57和0.02，均方误差的平均值分别为537和1872。随机位置参考光编码模式下的同轴系统安全性更高。正交相位加密技术可以有效地防止存储数据被非法访问和窃取，保证了数据的安全性。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135104394","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}
{"title":"5G通信LWDM窄带滤光膜的研制","authors":"张静 Zhang Jing, 刘海成 Liu Haicheng, 付秀华 Fu Xiuhua, 王升耆 Wang Shengqi, 王一博 Wang Yibo, 刘俊岐 Liu Junqi, 张天翔 Zhang Tianxiang, 杨飞 Yang Fei, 李刚 Li Gang","doi":"10.3788/cjl221491","DOIUrl":"https://doi.org/10.3788/cjl221491","url":null,"abstract":"为了满足5G光通信对细波分复用（LWDM）窄带滤光膜的要求，笔者采用电子束与离子辅助沉积技术，在K9基底上镀制了高质量光通信滤光膜。提出了一种高精度调试膜厚均匀性与光谱一致性的方法，该方法通过对特殊膜系镀膜结果进行反演分析，能快速分析出Ta2O5和SiO2两种材料光学厚度的误差，根据分析结果调节修正板，可以有效解决光学厚度匹配的问题，改善窄带滤光膜光谱。在镀制过程中采用光学直接监控法监控膜厚，对基板的实时光量值曲线进行拟合，根据拟合结果监控膜层厚度，同时采用晶控平均厚度法对耦合层与非规整膜层进行监控，提高了监控精度。最终制备的滤光膜在-0.2 dB处的带宽为4.1 nm，通带内最大插入损耗为0.14 dB，通带波纹为0.04 dB，-27 dB处带宽为6.0 nm，满足细波分复用窄带滤光膜的技术要求。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135662137","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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