Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiative emission dynamics of quantum dots in a single cavity
  micropillar   The light emission of self-assembled (In,Ga)As/GaAs quantum dots embedded in
single GaAs-based micropillars has been studied by time-resolved
photoluminescence spectroscopy. The altered spontaneous emission is found to be
accompanied by a non-exponential decay of the photoluminescence where the decay
rate strongly depends on the excitation intensity. A microscopic theory of the
quantum dot photon emission is used to explain both, the non-exponential decay
and its intensity dependence. Also the transition from spontaneous to
stimulated emission is studied.

7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg