论文标题

无序介质中极化光散射的随机基质理论

Random matrix theory of polarized light scattering in disordered media

论文作者

Byrnes, Niall, Foreman, Matthew R.

论文摘要

在这项工作中,我们提出了一种生成随机矩阵的方法,该矩阵描述了含有具有处方单粒子散射特征的介电颗粒的无序介质的电磁散射。产生的散射矩阵自动满足单位性,互惠和时间逆转的物理限制,同时还结合了电磁波和散射各向异性的极化特性。因此,我们的技术可以对各种极化现象进行统计研究,包括手性颗粒的去极化速率和依赖极化的散射。在这种情况下,我们对含有不同大小的各向同性和手性球形粒子进行数值模拟,以构成不同大小的厚度,从单个到多个散射状态,并讨论了我们的结果,并将比较与已建立的理论进行比较。

In this work we present a method for generating random matrices describing electromagnetic scattering from disordered media containing dielectric particles with prescribed single particle scattering characteristics. Resulting scattering matrices automatically satisfy the physical constraints of unitarity, reciprocity and time reversal, whilst also incorporating the polarization properties of electromagnetic waves and scattering anisotropy. Our technique therefore enables statistical study of a variety of polarization phenomena, including depolarization rates and polarization-dependent scattering by chiral particles. In this vein, we perform numerical simulations for media containing isotropic and chiral spherical particles of different sizes for thicknesses ranging from the single to multiple scattering regime and discuss our results, drawing comparisons to established theory.

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