Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Localized surface plasmons selectively coupled to resonant light in
  tubular microcavities   Vertical gold-nanogaps are created on microtubular cavities to explore the
coupling between resonant light supported by the microcavities and surface
plasmons localized at the nanogaps. Selective coupling of optical axial modes
and localized surface plasmons critically depends on the exact location of the
gold-nanogap on the microcavities which is conveniently achieved by rolling-up
specially designed thin dielectric films into three dimensional microtube ring
resonators. The coupling phenomenon is explained by a modified quasi-potential
model based on perturbation theory. Our work reveals the coupling of surface
plasmon resonances localized at the nanoscale to optical resonances confined in
microtubular cavities at the microscale, implying a promising strategy for the
investigation of light-matter interactions.

8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph