Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Current limiting effects on laser compression by resonant backward Raman
  scattering   Through resonant backward Raman scattering, the plasma wave mediates the
energy transfer between long pump and short seed laser pulses. These mediation
can result in pulse compression at extraordinarily high powers. However, both
the overall efficiency of the energy transfer and the duration of the amplified
pulse depend upon the persistence of the plasma wave excitation. At least with
respect to the recent state-of-the-art experiments, it is possible to deduce
that at present the experimentally realized efficiency of the amplifier is
likely constrained mainly by two effects, namely the pump chirp and the plasma
wave wavebreaking.

7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin