Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced optical cross section via collective coupling of atomic dipoles
  in a 2D array   Enhancing the optical cross section is an enticing goal in light-matter
interactions, due to its fundamental role in quantum and non-linear optics.
Here, we show how dipolar interactions can suppress off-axis scattering in a
two-dimensional atomic array, leading to a subradiant collective mode where the
optical cross section is enhanced by almost an order of magnitude. As a
consequence, it is possible to attain an optical depth which implies high
fidelity extinction, from a monolayer. Using realistic experimental parameters,
we also model how lattice vacancies and the atomic trapping depth affect the
transmission, concluding that such high extinction should be possible, using
current experimental techniques.

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The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
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The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: eess
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The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
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The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs