Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coupled electric and magnetic dipole formulation for planar arrays of
  dipolar particles: metasurfaces with various electric and/or magnetic
  meta-atoms per unit cell   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.

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The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th