Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropic Multi-layer Elliptical Waveguides Incorporating Graphene
  Layers: A Novel Analytical Model   This article aims to propose a novel analytical model for anisotropic
multi-layer elliptical structures incorporating graphene layers. The
multi-layer structure is formed of various magnetic materials. An external
magnetic bias has been applied in the axial direction. A graphene layer, with
isotropic surface conductivity, has been sandwiched between two adjacent
anisotropic materials. A novel matrix representation has been derived to find
the propagation parameters of the multi-layer structure. Two exemplary
important cases of the proposed general structure, as waveguides, have been
investigated to show, first the validity of our proposed analytical model, and
second, the richness of the general structure. The analytical and simulation
results show an excellent agreement. A very large value of the figure of merit
(FOM), e.g. FOM=110, is achieved for the second structure for the chemical
potential and external magnetic bias of 0.9 ev and 1T, respectively. Our
general structure and its analytical model can be exploited to design
innovative THz devices such as absorbers, couplers, and cloaks.

35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an