Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High extraction efficiency source of photon pairs based on a quantum dot
  embedded in a broadband micropillar cavity   The generation of photon pairs in single quantum dots is based on a process
that is, in its nature, deterministic. However, an efficient extraction of
these photon pairs from a high-index semiconductor host material requires
engineering of the photonic environment. We report on a micropillar-based
device featuring an extraction efficiency of 69.4(10)$\%$ that is achieved by
harnessing a broadband operation suitable for extraction of photon pairs
emitted from a single quantum dot. Opposing the approaches that rely solely on
Purcell enhancement to realize the enhancement of the extraction efficiency,
our solution exploits a suppression of the emission into the modes other than
the cavity mode. Our technological implementation requires modest fabrication
effort enabling higher device yields that can be scaled up to meet the growing
needs of quantum technologies. Furthermore, the design of the device can be
further optimized to allow for an extraction efficiency of 85$\%$.

16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th