Enhanced high-quality super-resolution imaging in air using microsphere lens groups

被引：28
作者：
Luo, Hao [1 ,2 ,3 ]
Yu, Haibo [1 ,2 ]
Wen, Yangdong [1 ,2 ,3 ]
Zhang, Tianyao [1 ,2 ,3 ]
Li, Pan [1 ,2 ,3 ]
Wang, Feifei [4 ]
Liu, Lianqing [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shenyang Inst Automat, State Key Lab Robot, Shenyang 110016, Peoples R China
[2] Chinese Acad Sci, Inst Robot & Intelligent Mfg, Shenyang 110016, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Stanford Univ, Dept Chem & BioX, Stanford, CA 94305 USA
来源：
OPTICS LETTERS | 2020年 / 45卷 / 11期
基金：
中国国家自然科学基金;
关键词：
MOVABLE THIN-FILMS; MICROSCOPY;
D O I：
10.1364/OL.393041
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Most microsphere-assisted super-resolution imaging experiments require a high-refractive-index microsphere to be immersed in a liquid to improve the super-resolution. However, samples are inevitably polluted by residuals in the liquid. This Letter presents a novel (to the best of our knowledge) method employing a microsphere lens group (MLG) that can easily achieve high-quality super-resolution imaging in air. The performance of this method is at par or better than that of the high-refractive-index microspheres immersed in liquid. In addition, the MLG generates a real image that is closely related to the photonic nanojet position of the microsphere super-lens. This imaging method is beneficial in microsphere imaging applications where liquids are impractical. (C) 2020 Optical Society of America
引用
收藏
页码：2981 / 2984
页数：4
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