Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Slow light enhanced correlated photon pair generation in
  photonic-crystal coupled-resonator optical waveguides   We demonstrate the generation of quantum-correlated photon pairs from a Si
photonic-crystal coupled-resonator optical waveguide. A slow-light supermode
realized by the collective resonance of high-Q and small-mode-volume
photonic-crystal cavities successfully enhanced the efficiency of the
spontaneous four-wave mixing process. The generation rate of photon pairs was
improved by two orders of magnitude compared with that of a photonic-crystal
line defect waveguide without a slow-light effect.

15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat