Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Impact of interparticle dipole-dipole interactions on optical
  nonlinearity of nanocomposites   In this paper, effect of dipole-dipole interactions on nonlinear optical
properties of the system of randomly located semiconductor nanoparticles
embedded in bulk dielectric matrix is investigated. This effect results from
the nonzero variance of the net dipole field in an ensemble. The analytical
expressions describing the contribution of the dipole-dipole coupling to
nonlinear dielectric susceptibility are obtained. The derived relationships are
applicable over the full range of nanoparticle volume fractions. The factors
entering into the contribution and depending on configuration of the dipoles
are calculated for several cases. It is shown that for the different
arrangements of dipole alignments the relative change of this contribution does
not exceed 1/3.

23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga