Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dispersion of guided modes in two-dimensional split ring lattices   We present a semi-analytical point-dipole method that uses Ewald lattice
summation to find the dispersion relation of guided plasmonic and bianisotropic
modes in metasurfaces composed of 2D periodic lattices of arbitrarily strongly
scattering magneto-electric dipole scatterers. This method takes into account
all retarded electrodynamic interactions as well as radiation damping
selfconsistently. As illustration we analyze the dispersion of plasmon nanorod
lattices, and of 2D split ring resonator lattices. Plasmon nanorod lattices
support transverse and longitudinal in-plane electric modes. Scatterers that
have an in-plane electric and out-of-plane magnetic polarizability, but without
intrinsic magnetoelectric coupling, result in two bands that are mixtures of
the bands of electric-only and magnetic-only lattices. Thereby bianisotropy
through mutual coupling, in absence of building-block bianisotropy, is evident.
Once strong bi-anisotropy is included in each building block, the Bloch modes
become even more strongly magnetoelectric. Our results are important to
understand spatial dispersion and bianisotropy of metasurface and metamaterial
designs.

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The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
19
The categories of this paper are: eess