Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Talbot effect in nonparaxial self-accelerating beams with
  electromagnetically induced transparency   In this study, we report on the fractional Talbot effect of nonparaxial
self-accelerating beams in a multilevel electromagnetically induced
transparency (EIT) atomic configuration, which, to the best of our knowledge,
is the first study on this subject. The Talbot effect originates from
superposed eigenmodes of the Helmholtz equation and forms in the EIT window in
the presence of both linear and cubic susceptibilities. The Talbot effect can
be realized by appropriately selecting the coefficients of the beam components.
Our results indicate that the larger the radial ifference between beam
components, the stronger the interference between them, the smaller the Talbot
angle is. The results of this study can be useful when studying optical
imaging, optical measurements, and optical computing.

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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: math
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: funct-an