纳米颗粒近场空间光谱散射建模与显微成像分析

用非直观偏振参数显微成像，即采用在传统显微光路中插入模式化装置，通过拟合过滤后对所得数据反演成像，通过对金属纳米颗粒在近场空间散射光谱分析，来解决空间散射现象。用非直观偏振参数显微成像与传统直观成像做对比，并通过时域有限差分法建模仿真，来描述近场直观与非直观散射光谱的差异，对比结果发现，非直观偏振参数显微反演成像的分辨率比直观成像更高，不但能够清晰的探测到纳米颗粒的形状和电场分布，而且比直观成像获得更广泛的空间散射光谱。

Analysis on Near Field Spatial Spectra Scattering Modeling of Metallic Nanoparticle and Microscopic Imaging

Polarization parameters indirect microscopic imaging,which utilizes conventional microscope as a basic light path and inserts modulations into the light path,finally,the inversion images are obtained after fitting and filtering the data obtained from the system.By analyzing the near-field spatial spectra scattering around nanoparticles to solve spatial spectra scattering.Compa-ring polarization parameters indirect microscopic imaging with direct imaging by using FDTD modeling,it can be found that the resolution of polarization parameters indirect microscopic imaging is much higher than conventional imaging and it can not only detect the shape and electric field distribution of nanoparticles,but also obtain much wider spatial scattering spectra.