Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of Planar Periodic Stratified Chiral Nihility Structures on
  Reflected and Transmitted Powers   Behavior of planar multilayer periodic structures due to plane wave
excitation has been studied using the transfer matrix method. Multilayer
structure is taken with periodicity two. That is, layers at even and odd
locations repeat themselves. Layers at odd locations are of chiral nihility
metamaterial whereas three different cases for layers at even locations are
considered, i.e., dielectric, chiral and chiral nihility. Effects of
polarization rotation due to the optical activity is studied with respect to
the angle of incidence and frequency in terahertz domain. Chiral nihility
introduces property of transparency to the structure for normal incidence while
complete rejection is observed for chiral nihility-chiral nihility structure at
oblique incidence.

8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio