Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical study of lithographically defined, subwavelength plasmonic wires
  and their coupling to embedded quantum emitters   We present an optical investigation of surface plasmon polaritons propagating
along nanoscale Au-wires, lithographically defined on GaAs substrates. A
two-axis confocal microscope was used to perform spatially and polarization
resolved measurements in order to confirm the guiding of surface plasmon
polaritons over lengths ranging from $5-20 \mu m$ along nanowires with a
lateral dimension of only $\approx 100 nm$. Finite difference time domain
simulations are used to corroborate our experimental observations and highlight
the potential to couple proximal quantum dot emitters to propagating plasmon
modes in such extreme sub-wavelength devices. Our findings are of strong
relevance for the development of semiconductor based integrated plasmonic and
active quantum plasmonic nanosystems that merge quantum emitters with nanoscale
plasmonic elements.

5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci