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论文类型：会议论文

发表时间：2014-10-09

收录刊物：EI、CPCI-S、Scopus

卷号：9273

关键字：FDTD method; single nanoparticle; scattering; heterodyne interference

摘要：In this work, we present a model to calculate the electric amplitude and phase field distribution of single nanoparticle by using finite-difference time-domain (FDTD) method. We model the light-nanoparticle interaction by using a liner polarization light to illuminate the single nanoparticle through immersion oil and glass substrate. The illumination is set as a cone of plane waves limited by the aperture of the objective. The scattering field summarized on a single detector is amplified by heterodyne interference with a reference light. The amplitude and phase distribution of particles with different diameters ranging from 50 nm to 2 micron are calculated.