Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reflection from the periodically modulated interface of a hyperbolic
  metamaterial   A numerical study of the features of the scattering of incident radiation at
a periodically modulated hyperbolic metamaterial boundary was carried out. We
have found optimal - sawtooth-shaped profile of the interface which provides
minimal reflection. It is shown that at a certain orientation of the optical
axes of the metamaterial, a subwave localization of the field occurs at the
saw-tooth interface. An approximate analytical expression for the eigenmode was
found. A generalization of the numerical method is implemented for calculating
fields, based on the application of the Green's second identity.

37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol