论文标题
偶极颗粒的平面阵列的耦合电和磁偶极配方：带有各种电池和/或磁性原子的元整日
Coupled electric and magnetic dipole formulation for planar arrays of dipolar particles: metasurfaces with various electric and/or magnetic meta-atoms per unit cell
论文作者
论文摘要
散射颗粒，元城市和元画的无限平面阵列的光学特性最近引起了对其丰富现象学的特别关注，包括等离激元和高屈光度元素介电元原子，具有各种电和磁性弹性响应。本文中，我们得出了一个耦合的电偶极子和磁取合偶极子（CEMD）分析公式，以描述此类周期阵列的反射和传输，包括镜面和衍射顺序，在仅需要偶性多尔尔的光谱状态下有效。电力和/或磁性偶极子具有所有三个方向，依次考虑每个单位电池的单个或各种元原子。 2D晶格绿色功能是根据完全收敛且可以轻松计算的1D（链）版本来重写的。可以提取作为这种晶格绿色功能的杆的模式。该公式可用于研究整个电磁频谱中感兴趣的大量等离子，全丝和杂交元面包/杂种。
The optical properties of infinite planar array of scattering particles, metasurfaces and metagratings, are attracting special attention lately for their rich phenomenology, including both plasmonic and high-refractive-index dielectric meta-atoms with a variety of electric and magnetic resonant responses. Herein we derive a coupled electric and magnetic dipole (CEMD) analytical formulation to describe the reflection and transmission of such periodic arrays, including specular and diffractive orders, valid in the spectral regimes where only dipolar multipoles are needed. Electric and/or magnetic dipoles with all three orientations arising in turn from a single or various meta-atoms per unit cell are considered. The 2D lattice Green function is rewritten in terms of a 1D (chain) version that fully converges and can be easily calculated. Modes emerging as poles of such lattice Green function can be extracted. This formulation can be applied to investigate a wealth of plasmonic, all-dielectric, and hybrid metasurfaces/metagratings of interest throughout the electromagnetic spectrum.
