Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electrically controlled waveguide polariton laser   Exciton-polaritons are mixed light-matter particles offering a versatile
solid state platform to study many-body physical effects. In this work we
demonstrate an electrically controlled polariton laser, in a compact,
easy-to-fabricate and integrable configuration, based on a semiconductor
waveguide. Interestingly, we show that polariton lasing can be achieved in a
system without a global minimum in the polariton energy-momentum dispersion.
The surface cavity modes for the laser emission are obtained by adding couples
of specifically designed diffraction gratings on top of the planar waveguide,
forming an in-plane Fabry-Perot cavity. It is thanks to the waveguide geometry,
that we can apply a transverse electric field in order to finely tune the laser
energy and quality factor of the cavity modes. Remarkably, we exploit the
system sensitivity to the applied electric field to achieve an electrically
controlled population of coherent polaritons. The precise control that can be
reached with the manipulation of the grating properties and of the electric
field provides strong advantages to this device in terms of miniaturization and
integrability, two main features for the future development of coherent sources
from polaritonic technologies.

19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg