Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical Anisotropy and Pinning of the Linear Polarization of Light in
  Semiconductor Microcavities   We report a strong experimental evidence of the optical anisotropy in a
CdTe-based microcavity: the polarization of light is pinned to one of the
crystallographic axes independently on the polarization of the excitation. The
polarization degree depends strongly on the excitation power, reaching almost
100 % in the stimulated regime. The relaxation time of the polarization is
about 1 ns. We argue that all this is an effect of a splitting of the polariton
doublet at k=0. We consider different sources for the splitting and conclude
that the most likely one is optical birefringence in the mirrors and/or the
cavity.

17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org