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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：9268

关键字：Sub-wavelength particle; high NA; amplitude; phase; size -dependent; Mie scattering

摘要：The interactions between light and sub-wavelength sized dielectric particles have been paid more attentions especially in biotechnology and photonics. Base on Mie scattering method, we calculate the electrical field distribution scattered by a single dielectric particle which is focused by a high numerical aperture (NA) objective. The theoretical result indicates a size dependent amplitude and phase distribution, which agrees well with the experimental measurement. This method provides a way to evaluate the particles size down to the range of less than diffraction limitation.