Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scattering of surface plasmons by one-dimensional periodic nanoindented
  surfaces   In this work, the scattering of surface plasmons by a finite periodic array
of one-dimensional grooves is theoretically analyzed by means of a modal
expansion technique. We have found that the geometrical parameters of the array
can be properly tuned to achieve optimal performance of the structure either as
a Bragg reflector or as a converter of surface plasmons into light. In this
last case, the emitted light is collimated within a few degrees cone.
Importantly, we also show that a small number of indentations in the array are
sufficient to fully achieve its functional capabilities.

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The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
1
The categories of this paper are: cs
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph