Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shifted-elementary-mode representation for partially coherent vectorial
  fields   A representation of partially spatially coherent and partially polarized
stationary electromagnetic fields is given in terms of mutually uncorrelated,
transversely shifted, fully coherent and polarized elementary electric-field
modes. This representation allows one to propagate non-paraxial partially
coherent vector fields using techniques for spatially fully coherent fields,
which are numerically far more efficient than methods for propagating
correlation functions. A procedure is given to determine the elementary modes
from the radiant intensity and the far-zone polarization properties of the
entire field. The method is applied to quasihomogeneous fields with
rotationally symmetric cosine-modulated radiant intensity distributions. This
is an adequate model for fields emitted by, e.g., many light-emitting diodes.

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The categories of this paper are: q-bio
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: nlin
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas