Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chip-integrated plasmonic cavity-enhanced single nitrogen-vacancy center
  emission   High temporal stability and spin dynamics of individual nitrogen-vacancy (NV)
centers in diamond crystals make them one of the most promising quantum
emitters operating at room temperature. We demonstrate a chip-integrated
cavity-coupled emission into propagating surface plasmon polariton (SPP) modes
narrowing NV center's broad emission bandwidth with enhanced coupling
efficiency. The cavity resonator consists of two distributed Bragg mirrors that
are built at opposite sides of the coupled NV emitter and are integrated with a
dielectric-loaded SPP waveguide (DLSPPW), using electron-beam lithography of
hydrogen silsesquioxane resist deposited on silver-coated silicon substrates. A
quality factor of ~ 70 for the cavity (full width at half maximum ~ 10 nm) with
full tunability of the resonance wavelength is demonstrated. An up to 42-fold
decay rate enhancement of the spontaneous emission at the cavity resonance is
achieved, indicating high DLSPPW mode confinement.

30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
9
The categories of this paper are: nlin