摘要
微纳结构的表面模式及波导模式等耦合辐射过程,可以被有效地用于在远场研究近场光-物相互作用。而在近场光学表征和高灵敏传感等应用研究过程中,一个优化完善的显微系统可以为研究人员带来便利,同时也让高通量数据存储、测试和分析的实现成为可能。利用模式特征的图像处理过程不但可以完成大量数据的快速自动识别,而且可以实现无人值守的监测和分析。为研究光子晶体结构中的模式特性,通过模式提取完成了光路的自校准;在含荧光探针的耦合辐射当中,利用模式间的配准完成了荧光信号的耦合角度测算;利用表面模式的传感特性完成了对环境折射率变化的监测。研究结果表明,后焦面图像的智能识别可以快速处理海量数据,并完成特定场景下应用的自动分析。
The coupled emission through surface modes and waveguide modes in micro-nano structures can be used to study the interaction between near-field light and matter in the far field.In the research process of near-field optical characterization and mode sensing applications with high sensitivity,an optimized microscopic system can bring convenience to researchers,and it also makes it possible to realize high-throughput data storage,testing and analysis.The image processing technology with mode features can not only complete the automatic recognition of a large number of data,but also realize unattended monitoring and analysis.In this paper,the mode characteristics in photonic crystal structure are studied,and the selfcalibration of optical path is completed by using mode extraction.In the coupling mission with fluorescent probe,the coupling angle of fluorescent signal is calculated by using the registration between modes.Finally,the change of environmental refractive index is monitored by using the sensing characteristics of surface mode.These results prove that the intelligent recognition of back focal plane image can quickly complete the automatic analysis of massive data for applications in specific scenarios.
作者
陈漪恺
孔卓冉
孙文杰
张宏超
朱时军
沈中华
陆健
CHEN Yikai;KONG Zhuoran;SUN Wenjie;ZHANG Hongchao;ZHU Shijun;SHEN Zhonghua;LU Jian(School of Sciences,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《安庆师范大学学报（自然科学版）》
2022年第1期28-34,共7页
Journal of Anqing Normal University(Natural Science Edition)
基金
江苏省自然科学基金项目(BK20170818)。
关键词
表面等离激元
后焦面
图像配准
图像压缩
图像识别
surface plasmon
back focal plane
image registration
image compression
image recognition
