Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced nonlinear circular dichroism in resonant dielectric
  metasurfaces   We study both linear and nonlinear circular dichroism in dielectric resonant
metasurfaces. We predict and demonstrate experimentally the enhancement of
circular dichroism for normal propagation of light due to the excitation of
multipolar Mie-type modes in silicon resonators and the formation of a complex
vectorial field structure. We also reveal that high-quality Mie resonances
satisfying optimal coupling condition can lead to giant circular dichroism in
the nonlinear regime observed for the generation of the third-harmonic signal
by normally propagating circularly polarized fundamental frequency fields.

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The categories of this paper are: cond-mat
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The categories of this paper are: econ
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: math
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The categories of this paper are: hep-ph
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: cs
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The categories of this paper are: atom-ph