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基于超表面波带片的远场偏振全息加密 基于超表面波带片的远场偏振全息加密
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230695
夏天 Xia Tian, 谢振威 Xie Zhenwei, 袁小聪 Yuan Xiaocong
{"title":"基于超表面波带片的远场偏振全息加密","authors":"夏天 Xia Tian, 谢振威 Xie Zhenwei, 袁小聪 Yuan Xiaocong","doi":"10.3788/cjl230695","DOIUrl":"https://doi.org/10.3788/cjl230695","url":null,"abstract":"超表面是一种具有灵活的偏振操纵功能的新型材料。为了获得远场偏振全息图像，通常需要添加透镜等光学元件。笔者利用超表面波带片的灵活偏振操纵及聚焦功能实现了一种新颖的远场偏振全息加密技术。在该技术中，两个自旋复用的超表面波带片被集成到单个介质超表面器件中，其中超表面的振幅（右旋圆偏振转化率）用来编码奇数和偶数环形区域的波带片，而其相位调制则用来编码透射右旋圆偏振光和左旋圆偏振光的两个全息图。此外，二维码（QR码）和振幅型/相位型全息图用于进一步隐藏加密信息，以提高信息的安全性。所提加密技术有望进一步提升数据安全性和隐私保护水平，推动光学信息加密和高密度数据存储等领域的技术发展。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"26 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":"135105305","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}
引用次数: 0
316L不锈钢双激光选区熔化成形性能研究 316L不锈钢双激光选区熔化成形性能研究
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl221233
樊胜杰 Fan Shengjie, 杨永强 Yang Yongqiang, 宋长辉 Song Changhui, 刘子彬 Liu Zibin
{"title":"316L不锈钢双激光选区熔化成形性能研究","authors":"樊胜杰 Fan Shengjie, 杨永强 Yang Yongqiang, 宋长辉 Song Changhui, 刘子彬 Liu Zibin","doi":"10.3788/cjl221233","DOIUrl":"https://doi.org/10.3788/cjl221233","url":null,"abstract":"为了研究不同的扫描模式对激光选区熔化（SLM）成形质量的影响，采用自主研发的双激光同步扫描激光选区熔化设备，在单激光扫描、双激光低功率同步扫描、双激光高速同步扫描模式下制备了316L不锈钢样件，对比了三种模式下的成形质量，分析了三种模式下飞溅形态、熔池形貌以及样件力学性能的差异。结果表明：采用双激光低功率（110 W）同步扫描时，由反冲压力引起的飞溅增多，熔池尺寸均匀且排列整齐；随着单束激光功率从95 W提升至120 W，样件的致密度从98.91%提升至99.32%；样件的微观组织主要由宽度为0.65~0.75 μm的柱状亚晶与等轴亚晶组成。采用双激光高速（2000 mm/s）同步扫描时，熔池深宽发生较大变化，搭接率由单激光扫描时的30%提升至50%以上，柱状亚晶的平均尺寸由单激光扫描时的0.50 μm降到0.35 μm。两种双激光同步扫描模式下成形样件的力学性能与单激光扫描模式下的相当，致密度达到99%以上，抗拉强度均超过720 MPa，延伸率超过40%。双激光高速同步扫描使得成形效率相较单激光扫描提升了一倍，为大尺寸激光选区熔化设备的扫描策略设计提供了新思路。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"26 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":"135105313","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}
引用次数: 0
液晶的多维度光场调控技术研究进展 液晶的多维度光场调控技术研究进展
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230716
朱宸 Zhu Chen, 邵正龙 Shao Zhenglong, 周英杰 Zhou Yingjie, 任佳琪 Ren Jiaqi, 樊帆 Fan Fan, 汤东亮 Tang Dongliang
{"title":"液晶的多维度光场调控技术研究进展","authors":"朱宸 Zhu Chen, 邵正龙 Shao Zhenglong, 周英杰 Zhou Yingjie, 任佳琪 Ren Jiaqi, 樊帆 Fan Fan, 汤东亮 Tang Dongliang","doi":"10.3788/cjl230716","DOIUrl":"https://doi.org/10.3788/cjl230716","url":null,"abstract":"液晶作为一种介于液态与结晶态之间的功能性软材料，可以同时表现出液体流动性和晶体的各向异性，被广泛应用于图像显示、集成光电子学、光通信等领域。近年来，由于液晶理论研究的深入及其加工技术的发展，液晶在几何相位、动态可调谐等光场调控方面的优势推动了光学器件的平面化、集成化、智能化和小型化。综述了液晶在光场调控方面的最新应用进展，具体讨论了其对光波振幅、相位、偏振等多维度参数的调控特性，进而探讨了液晶在多功能光学器件和光学加密系统中的应用。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"26 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":"135105321","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}
引用次数: 0
“多维光信息加密及存储技术”专题前言 “多维光信息加密及存储技术”专题前言
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230201
李向平 Li Xiangping, 郑国兴 Zheng Guoxing, 谭小地 Tan Xiaodi, 肖淑敏 Xiao Shumin, 黄玲玲 Huang Lingling
{"title":"“多维光信息加密及存储技术”专题前言","authors":"李向平 Li Xiangping, 郑国兴 Zheng Guoxing, 谭小地 Tan Xiaodi, 肖淑敏 Xiao Shumin, 黄玲玲 Huang Lingling","doi":"10.3788/cjl230201","DOIUrl":"https://doi.org/10.3788/cjl230201","url":null,"abstract":"","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"40 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":"135105335","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}
引用次数: 0
基于卫星反射器的转发式激光时间传递试验研究 基于卫星反射器的转发式激光时间传递试验研究
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl220964
耿仁方 Geng Renfang, 吴志波 Wu Zhibo, 黄勇 Huang Yong, 林海声 Lin Haisheng, 喻荣宗 Yu Rongzong, 汤凯 Tang Kai, 张海峰 Zhang Haifeng, 张忠萍 Zhang Zhongping
{"title":"基于卫星反射器的转发式激光时间传递试验研究","authors":"耿仁方 Geng Renfang, 吴志波 Wu Zhibo, 黄勇 Huang Yong, 林海声 Lin Haisheng, 喻荣宗 Yu Rongzong, 汤凯 Tang Kai, 张海峰 Zhang Haifeng, 张忠萍 Zhang Zhongping","doi":"10.3788/cjl220964","DOIUrl":"https://doi.org/10.3788/cjl220964","url":null,"abstract":"基于星载曲面镜的转发式激光时间传递具有零时延、高可靠性和高准确度等优势，但由于缺少合适的卫星试验平台，该技术目前仅限于理论分析，尚未获得有效试验数据及性能评估结果。本文将相邻的两套卫星激光测距（SLR）系统作为试验台站，以激光卫星上搭载的反射器作为转发载荷，开展了转发式激光时间传递试验研究。首先，介绍了转发式激光时间传递的基本原理及理论；然后，对上海天文台SLR系统进行适应性改造，搭建了转发式激光时间传递试验系统，并开展了不同激光卫星的实测试验；最后，分析获得的时间传递结果，研究影响该技术性能的主要因素。试验结果表明：该技术可以获得优于100 ps的精度以及ns的准确度，单向工作模式可行，为转发式激光时间传递的发展提供了有力支撑。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"157 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":"135105663","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}
引用次数: 0
基于超表面的阵列光场纵向维度信息编解码 基于超表面的阵列光场纵向维度信息编解码
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230727
樊鑫豪 Fan Xinhao, 武炫光 Wu Xuanguang, 周亮 Zhou Liang, 刘圣 Liu Sheng, 赵建林 Zhao Jianlin, 李鹏 Li Peng
{"title":"基于超表面的阵列光场纵向维度信息编解码","authors":"樊鑫豪 Fan Xinhao, 武炫光 Wu Xuanguang, 周亮 Zhou Liang, 刘圣 Liu Sheng, 赵建林 Zhao Jianlin, 李鹏 Li Peng","doi":"10.3788/cjl230727","DOIUrl":"https://doi.org/10.3788/cjl230727","url":null,"abstract":"随着大数据时代的到来，空间光通信已被广泛应用于各种通信系统中，但随之而来的是容量瓶颈的挑战。基于光场频率、时间、偏振、横向空间模式等维度调控的信息编解码方法在解决容量问题方面展现了优异性能，但光场的纵向维度却未被应用于信息编解码。针对此问题，本文提出了一种基于电介质超表面的光场纵向维度信息编解码新方法，基于四原子结构的几何相位和传输相位联合调控，实现了透射场自旋相关的复振幅调控。同时，利用光学冻结波原理产生了轨道角动量模式叠加态的纵向可控变化，并验证了光场模态的纵向调控能够以指数级提升信道中的模态容量。纵向维度作为一个全新的编码自由度，有望进一步提高自由空间光通信性能。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"55 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":"135105683","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}
引用次数: 0
空穴主导雪崩倍增的短波长SiC紫外单光子探测器 空穴主导雪崩倍增的短波长SiC紫外单光子探测器
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl221289
苏琳琳 Su Linlin, 杨成东 Yang Chengdong
{"title":"空穴主导雪崩倍增的短波长SiC紫外单光子探测器","authors":"苏琳琳 Su Linlin, 杨成东 Yang Chengdong","doi":"10.3788/cjl221289","DOIUrl":"https://doi.org/10.3788/cjl221289","url":null,"abstract":"制备并分析了SiC nip雪崩光电二极管（APDs）雪崩倍增的物理机制。与280 nm紫外光相比，在240 nm紫外光入射时，SiC nip APD表现出更高的增益和更大的单光子探测效率。在240 nm紫外光入射时，SiC nip APD表现为空穴主导碰撞离化过程，随着入射光波长增加到280 nm，电子和空穴共同主导碰撞离化过程。由于SiC中空穴的碰撞离化系数大于电子，空穴主导的碰撞离化过程将具有更大的光子雪崩概率和更高的增益。因此，得益于空穴主导雪崩倍增过程，SiC nip APD更适用于短波长紫外光探测。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"147 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":"135105706","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}
引用次数: 0
基于可视中国人蒙特卡罗分析实现肺部无创光学监测的探讨 基于可视中国人蒙特卡罗分析实现肺部无创光学监测的探讨
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230532
杨松齐 Yang Songqi, 郭江辉 Guo Jianghui, 李婷 Li Ting
{"title":"基于可视中国人蒙特卡罗分析实现肺部无创光学监测的探讨","authors":"杨松齐 Yang Songqi, 郭江辉 Guo Jianghui, 李婷 Li Ting","doi":"10.3788/cjl230532","DOIUrl":"https://doi.org/10.3788/cjl230532","url":null,"abstract":"肺部疾病的诊断和治疗很重要，目前实现肺部疾病的无创监测具有一定困难。笔者采用近红外光子传输技术，定量研究了人体肺部的结构。以可视中国人数据集（VCH）为实验对象，利用蒙特卡罗（MC）模拟对其进行了仿真。对肺部血流动力学非侵入式测量的可行性进行了理论探讨，并对光子在肺部传输时的最佳光源位置进行了研究，同时还对光源‐检测器距离进行了优化。光通量强度显示，光子在人体肺部可以穿透6~8.4 mm，光源到检测器的最佳距离是2.8~3.6 cm。在此基础上，对13名志愿者进行了近红外漫反射实验，实验数据与仿真结果基本一致。实验结果表明，本研究在肺部血流动力学无创监测方面具有广阔的应用前景，同时也为生物医学光学技术在人体上的应用提供了参考。","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"28 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":"135105709","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}
引用次数: 0
高效率国产抗辐照铒镱共掺保偏光纤 高效率国产抗辐照铒镱共掺保偏光纤
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230831
王璠 Wang Fan, 朱一鸣 Zhu Yiming, 郭梦婷 Guo Mengting, 邵冲云 Shao Chongyun, 周秦岭 Zhou Qinling, 徐永春 Xu Yongchun, 王孟 Wang Meng, 张磊 Zhang Lei, 于春雷 Yu Chunlei, 胡丽丽 Hu Lili
{"title":"高效率国产抗辐照铒镱共掺保偏光纤","authors":"王璠 Wang Fan, 朱一鸣 Zhu Yiming, 郭梦婷 Guo Mengting, 邵冲云 Shao Chongyun, 周秦岭 Zhou Qinling, 徐永春 Xu Yongchun, 王孟 Wang Meng, 张磊 Zhang Lei, 于春雷 Yu Chunlei, 胡丽丽 Hu Lili","doi":"10.3788/cjl230831","DOIUrl":"https://doi.org/10.3788/cjl230831","url":null,"abstract":"","PeriodicalId":47922,"journal":{"name":"CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG","volume":"1 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":"135105934","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}
引用次数: 0
面向光信息存储的小尺寸光场研究进展 面向光信息存储的小尺寸光场研究进展
4区 物理与天体物理
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG Pub Date : 2023-01-01 DOI: 10.3788/cjl230919
郑鹏程 Zheng Pengcheng, 谢向生 Xie Xiangsheng, 梁浩文 Liang Haowen, 周建英 Zhou Jianying
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