Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical wave splitting due to transient energy convection between the
  pump and Stokes waves in stimulated Brillouin scattering   In this paper, we prove theoretically that both the stimulated Stokes
scattering and its reverse process can occur simultaneously for the light and
acoustic waves at different points of the medium, resulting in transient and
alternate energy flow between the pump and Stokes waves in the stimulated
Brillouin scattering. Furthermore, it is found that stimulated Stokes
scattering and its reverse process will dominate alternately on the whole
during the three-wave coupling, but the eventual net energy flow must be from
the pump wave to the Stokes wave as a result of the finite lifetime of
acoustical phonons. It is also deduced that direction of energy flow between
the pump and Stokes waves will turn to the opposite side once any one of the
three waves experiences a ${\pi}$-phase shift. Consequently, we present that
transient energy convection between the pump and Stokes waves can give rise to
optical wave splitting for the output pump and Stokes pulses, and is also
responsible for the generation of Brillouin solitons because energy reflux can
provide additional dissipation for the Stokes and acoustic waves to achieve the
gain-loss balance.

16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an