Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field enhancement in clusters and clustered plasmas in the Mie
  scattering regime   Clusters and clustered plasmas in the Mie scattering regime are attractive
targets in intense laser-cluster interaction experiments. In contrast with
clusters in the Rayleigh regime, the internal field has a strong size
dependence. In this paper, we investigate the electric field in dielectric
clusters and clustered plasmas due to Mie scattering. In sub-wavelength sized
dielectric clusters, the well-known diffractive focusing appears, increasing
the maximum field. In fully ionized homogeneous clusters, while the center
field decreases at large sizes due to skin effect, it may initially increase
with the size at shorter wavelength. During intense laser interaction with
large clusters, the skin effect prevents the field from penetrating, leaving
clusters as an unionized core with a plasma shell. This core-shell clusters may
greatly enhance the internal field at suitable sizes due to hybridization of
plasmons. Control and optimization of large cluster sizes to enhance the
internal field may have practical significance for laser-cluster experiments
such as proton acceleration.

33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an