Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superscatterer: Enhancement of scattering with complementary media   Based on the concept of complementary media, we propose a novel design which
can enhance the electromagnetic wave scattering cross section of an object so
that it looks like a scatterer bigger than the scale of the device. Such a
``superscatterer'' is realized by coating a negative refractive material shell
on a perfect electrical conductor cylinder. The scattering field is
analytically obtained by Mie scattering theory, and confirmed by full-wave
simulations numerically. Such a device can be regarded as a cylindrical concave
mirror for all angles.

20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg