Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: GaAs valley photonic crystal waveguide with light-emitting InAs quantum
  dots   We report a valley photonic crystal (VPhC) waveguide in a GaAs slab with InAs
quantum dots (QDs) as an internal light source exploited for experimental
characterization of the waveguide. A topological interface state formed at the
interface between two topologically-distinct VPhCs is used as the waveguide
mode. We demonstrate robust propagation for near-infrared light emitted from
the QDs even under the presence of sharp bends as a consequence of the
topological protection of the guided mode. Our work will be of importance for
developing robust photonic integrated circuits with small footprints, as well
as for exploring active semiconductor topological photonics.

11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin