Liquid microsphere arrays for imaging magnification
Liquid microsphere arrays for imaging magnification
复制标题
用于成像放大的液体微球阵列
DOI：
10.1016/j.optcom.2018.07.023
复制
发表时间：
2018
影响因子：
2.4
通讯作者：
Liu Hongzhong
中科院分区：
文献类型：
--
作者：
Gu Tongkai;Wang Lanlan;Li Rui;Dong Yanzhen;Zhang Yajun;Jia Mengchao;Jiang Weitao;Liu Hongzhong
液体微球阵列在光学显微镜成像放大方面具有重要的应用前景。本论文利用微纳米压印技术制备了凹孔阵列（凹孔直径D= 20、30、100 μ m），并提出了一种新的模板导向自组装方法从甘油中引出LMSA。在最大放大一千倍的光学显微镜下，具有可调凸高度（h= 0-D/2）和超光滑柔性表面的LMS提供1-3.4的成像放大率。据我们所知，用于成像放大的LMS是相当新颖的，尚未报道。在倏逝波耦合的基础上，线性微结构可以作为成像光子传输的重要通道。进一步研究了放大倍数随液体微球的凸高和半径的变化。随着液体微球半径的增大或凸起高度的减小，成像放大率降低，这与模拟结果一致。这种自组装的方法为今后的成像放大器件的设计和制造提供了极大的可能性。
Liquid microsphere arrays (LMSAs) possess significant potential applications in imaging magnification of optical microscopy. In this work, we fabricate concave hole arrays (the diameter of concave hole D= 20, 30, 100 μ m) through the micro-and nano-imprint technology, then propose a novel template-directed self-assembly method to pull out LMSAs from glycerol. Under an optical microscope with a maximum of one thousand times magnification, The LMSAs with tunable convex heights (h= 0-D/2) with ultra-smooth flexible surface provide the imaging magnification of 1-3.4. To the best of our knowledge, the LMSAs for imaging magnification is fairly novel and has not been reported. The LMSAs can serve as the significant passageways for imaging photon transmission based on the evanescent waves coupling. We further study the changing of magnification with the convex height and radius of the liquid microsphere. With the radius of liquid microsphere increasing, or the convex height of liquid microsphere decreasing, lower imaging magnification can be obtained which is consistent with the simulation results. This self-assembly methods of LMSAs we reported shows great possibility in future design and fabrication of imaging magnification devices.