论文标题
来自微米大小胶体组件的角度分辨光散射
Angular resolved light scattering from micron-sized colloidal assemblies
论文作者
论文摘要
与可见光波长相当的长度尺度上具有结构相关性的无序电介质具有复杂的光学特性。这种材料在自然界中存在，导致美丽的结构非彩色颜色，它们也越来越多地用作光学材料和涂料的构件。在本文中，我们研究了微米大小的，无序胶体组件的单碎片特性。骨料充当结构上有色的上粒子或宏观光子玻璃的构件。我们提供了差分散射和运输横截面的实验数据。我们展示了如何适应现有的宏观模型来描述弱散射极限之外的小胶体组件的散射并进入洛伦兹 - 莫伊（Lorentz-Mie）制度。
Disordered dielectrics with structural correlations on length scales comparable to visible light wavelengths exhibit complex optical properties. Such materials exist in nature, leading to beautiful structural non-iridescent color, and they are also increasingly used as building blocks for optical materials and coatings. In this article, we study the single-scattering properties of micron-sized, disordered colloidal assemblies. The aggregates act as structurally colored supraparticles or as building blocks for macroscopic photonic glasses. We present experimental data for the differential scattering and transport cross-section. We show how we can adapt existing macroscopic models to describe the scattering from small colloidal assemblies outside the weak-scattering limit and entering the Lorentz-Mie regime.
