Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Propagation of plasmons in designed single crystalline silver
  nanostructures   We demonstrate propagation of plasmons in single crystalline silver
nanostructures fabricated using a combination of a bottom-up and a top-down
approach. Silver nanoplates of thickness around 65 nm and a surface area of
about 100 \mu m^2 are made using a wet chemical method. Silver nanotips and
nanowires are then sculptured by focused ion beam milling. The plasmons are
excited by using the fluorescence from the redeposited silver clusters during
the milling process. Propagation of plasmons in the nanowires is observed in
the visible spectral region. We also observe a cavity effect by measuring the
emission spectrum from the distal wire end.

35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
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The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat