Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resonant Response in Mechanically Tunable Metasurface based on Crossed
  Metallic Gratings with Controllable Crossing Angle   We report on a new class of mechanically tunable planar metamaterials
comprising resonating units formed by crossed metallic strip gratings. We
observe a resonant response in transmission spectra of a linearly polarized
wave passing through the system of crossed gratings. Each grating consists of
an array of parallel metallic strips located on the top of a dielectric
substrate. It is revealed that the resonant position appears to be dependent on
the angle of gratings crossing. It is found out both theoretically and
experimentally that the resonant shift on the frequency scale appears as a
result of increasing in the length of the resonating portion of the
parallelogram periodic cell formed by the crossed metallic strips with
decreasing crossing angle and the proposed design can be used in new types of
planar metamaterials and filters.

19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th