基于SiO_2微球颗粒的成像研究  

Imaging research based on SiO_2 microsphere

作　　者：韩笑[1] 杨俊杰[1] 赖雪[1] 单新治 隋国荣[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《光学仪器》2015年第5期431-435,共5页Optical Instruments

基　　金：上海理工大学国家基金培育计划项目(3212302007)

摘　　要：远场显微成像是近年来的研究热点,而微球颗粒在远场成像中具有一定的放大作用。针对这种现象,通过对微球颗粒的分离,对单个微球颗粒的成像特性进行了理论研究。实验表明,利用一定尺寸的二氧化硅微球颗粒,可以使远场显微镜的分辨率提高一倍。在尼康显微镜下,利用普通卤素灯光源、二氧化硅和相应的增强介质,对1 200线的光栅实现了近一倍的放大成像效果,证实了微球颗粒的远场显微成像能力。The far-field super-resolution imaging is a hot spot in the research.It is found that the microsphere played an important role in the far-field imaging.We design an experiment to realize de-aggregation of microsphere,and theoretically study imaging characteristics of single microsphere.According to the experimental research,we can double the resolution of far-field microscope by utilizing a specific scale of silica microsphere.By using the Nikon microscope with the halide lamp under the silica microsphere and relevant enhanced-medium,we double the imaging effect of a 1 200 line optical grating,and it shows the far-field imaging efficiency of microsphere.

关 键 词：远场超分辨成像 二氧化硅微球 解团聚 成像放大 

分 类 号：TN205[电子电信—物理电子学]