Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental measurement of plasmonic nanostructures embedded in silicon
  waveguide gaps   In this work, we report numerical simulations and experiments of the optical
response of a gold nanostrip embedded in a silicon strip waveguide gap at
telecom wavelengths. We show that the spectral features observed in
transmission and reflection when the metallic nanostructure is inserted in the
gap are extremely different to those observed in free-space excitation. First,
we find that interference between the guided field and the electric dipolar
resonance of the metallic nanostructure results in high-contrast (> 10)
spectral features showing an asymmetric Fano spectral profile. Secondly, we
reveal a crossing in the transmission and reflection responses close to the
nanostructure resonance wavelength as a key feature of our system. This
approach, which can be realized using standard semiconductor nanofabrication
tools, could lead to fully exploit the extreme properties of subwavelength
metallic nanostructures in an on-chip configuration, with special relevance in
fields such as biosensing or optical switching.

10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc