Multipole expansion tutorial

This dataset is in preparation.

The following dataset will contain instructions for performing exact electromagnetic multipole expansion for optical scatterers of arbitrary sizes and shapes using a numerical simulation software such as COMSOL Multiphysics.

The following aspects will be presented:

1. Derivation of the exact mapping relations from current to classical multipole moments up to an arbitrary multipole order.
2. Creating an example COMSOL model.
3. Simple implementation of the Mie theory as a benchmark for numerical calculations.

本数据集尚在筹备中。
本数据集将包含针对任意尺寸与形状的光学散射体，使用COMSOL Multiphysics等数值仿真软件开展精确电磁多极展开的操作指南。
本数据集将涵盖以下内容：
1. 推导从电流分布到任意阶经典多极矩的精确映射关系；
2. 构建COMSOL Multiphysics仿真示例模型；
3. 实现米氏散射理论（Mie theory）的简易版本，用作数值计算的基准测试方案。