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论文类型：会议论文

发表时间：2016-10-12

收录刊物：EI、CPCI-S、Scopus

卷号：10027

关键字：Microscopy; amplitude; phase; nanoparticles; optical resolution

摘要：Optical detection of nanoparticle with ultra-high sensitivity plays an important role in bio- / nano-and their relative research fields. In our recently developed method, each single particle exhibits unique 4-lobes pattern both in the amplitude and phase images respectively, based on which we explored the possibility of resolution improvement by a particle pair. In this paper two polystyrene beads at the diameter of 100nm were employed with the gap distance ranging from 100-400nm. The amplitude and phase images of the particle pair were simulated by FDTD solver. The images are sensitive to geometrical parameters of the two particles, such as gap distance and direction. The simulation results lead to a resolution of 100nm.