Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photo-draining and slow capture of carriers in quantum dots probed by
  resonant excitation spectroscopy   We investigate experimentally and theoretically the resonant emission of
single InAs/GaAs quantum dots in a planar microcavity. Due to the presence of
at least one residual charge in the quantum dots, the resonant excitation of
the neutral exciton is blocked. The influence of the residual doping on the
initial quantum dots charge state is analyzed, and the resonant emission
quenching is interpreted as a Coulomb blockade effect. The use of an additional
non-resonant laser in a specific low power regime leads to the carrier draining
in quantum dots and allows an efficient optical gating of the exciton resonant
emission. A detailed population evolution model, developed to describe the
carrier draining and the optical gate effect, perfectly fits the experimental
results in the steady state and dynamical regimes of the optical gate with a
single set of parameters. We deduce that ultra-slow Auger- and phonon-assisted
capture processes govern the carrier draining in quantum dots with relaxation
times in the 1 - 100 microsecond range. We conclude that the optical gate acts
as a very sensitive probe of the quantum dots population relaxation in an
unprecedented slow-capture regime.

11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
2
The categories of this paper are: math