Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mono-cross-anisotropic Metasurface Absorbing Boundary Condition (ABC)   We introduce the concept of Metasurface Absorbing-Boundary Condition
(MS-ABC). This represents the first application of metasurface technology to
computational electromagnetics. MS-ABCs have similar performance as previously
reported surface ABCs, but they provide a richer description of absorption,
that is independent from the incident wave, and deeper insight into the
physics, through bianisotropic susceptibilities. The MS-ABC susceptibilities
are synthesized using GSTC synthesis, from which the metasurface is found to be
mono-cross-anisotropic, i.e. having only electric-to-magnetic and
magnetic-to-electric coupling susceptibility tensors being non-zero, which is
physically impossible, but numerically perfectly appropriate. Moreover, it is
found that the metasurface is asymmetric, being amplifying in the opposite
direction of its basic utilization as an ABC. The MS-ABC is implemented in a
GSTC-FDTD scheme, which, for the first time, replaces the virtual grid concept
by straightforward surface polarization currents residing on the regular Yee
grid.

18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th