Super-resolution imaging of low-contrast periodic nanoparticle arrays by microsphere-assisted microscopy

作     者：Qin-Fang Shi Song-Lin Yang Yu-Rong Cao Xiao-Qing Wang Tao Chen Yong-Hong Ye 石勤芳;杨松林;曹玉蓉;王晓晴;陈涛;叶永红

作者机构：Department of PhysicsNanjing Normal UniversityNanjing 210023China Advanced Photonics CenterSoutheast UniversityNanjing 210096China Jiangsu Provincial Key Laboratory of Advanced RoboticsSoochow UniversitySuzhou 215123China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2021年第30卷第4期

页      面：193-197页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0803[工学-光学工程] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.61673287) 

主　　题：super-resolution microsphere optical microscopy surface plasmon polariton 

摘      要：We use the label-free microsphere-assisted microscopy to image low-contrast hexagonally close-packed polystyrene nanoparticle arrays with diameters of 300 and 250 *** a nanoparticle array is directly placed on a glass slide,it cannot be *** a 30-nm-thick Ag film is deposited on the surface of a nanoparticle array,the nanoparticle array with nanoparticle diameters of 300 and 250 nm can be *** addition,the Talbot effect of the 300-nm-diameter nanoparticle array is also *** a nanoparticle sample is assembled on a glass slide deposited with a 30-nm-thick Ag film,an array of 300-nm-diameter nanoparticles can be *** propose that in microsphere-assisted microscopy imaging,the resolution can be improved by the excitation of surface plasmon polaritons(SPPs) on the sample surface or at the sample/substrate interface,and a higher near-field intensity due to the excited SPPs would benefit the resolution *** study of label-free super-resolution imaging of low-contrast objects will promote the applications of microsphere-assisted microscopy in life sciences.