Shen Fei, Zhang Man, Guo Kai, Zhou Hongping, Peng Zhiyong, Cui Yuemeng, Wang Feng, Gao Jun, Guo Zhongyi
Opt Express. 2019 Sep 30;27(20):28337-28349. doi: 10.1364/OE.27.028337.
In this paper, the Indices of Polarimetric Purity (IPPs) [1-3] have been proposed to analyze the depolarization performances of mono-dispersion and poly-dispersion scattering systems. Here, we mainly investigate the influences of the particles' density, Refractive Index (RI) of the medium, incident wavelengths, the mixing ratio of bi-dispersion scattering particles and particle-size distributions of poly-dispersion scattering system on the depolarization performances for the backscattering detection. For the mono-dispersion scattering system under same incident wavelength, if the relative RI ratios () increase linearly, the depolarization performances of the system will first weaken and then strengthen, and of course, the incident wavelength and density of scattering particles will also influence the depolarization performances of the scattering system. For the bi-dispersion scattering system, the proportion of small particles will be negatively correlated with the depolarization property of the dispersion system, and meanwhile, the particle-size distributions will also affect the depolarization performances greatly in the poly-dispersion scattering system. The results demonstrate that the IPPs can be used to describe the depolarization performances of dispersion systems effectively.
在本文中，已提出偏振纯度指数（IPPs）[1 - 3]来分析单分散和多分散散射系统的去极化性能。在此，我们主要研究粒子密度、介质折射率（RI）、入射波长、双分散散射粒子的混合比以及多分散散射系统的粒径分布对后向散射检测去极化性能的影响。对于相同入射波长下的单分散散射系统，若相对折射率比（）线性增加，系统的去极化性能将先减弱后增强，当然，入射波长和散射粒子密度也会影响散射系统的去极化性能。对于双分散散射系统，小粒子的比例与分散系统的去极化特性呈负相关，同时，在多分散散射系统中粒径分布也会对去极化性能产生很大影响。结果表明，IPPs可有效用于描述分散系统的去极化性能。
