Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced Electromagnetic Chirality by Locally Excited Surface Plasmon
  Polaritons   The possibility to enhance chiral light-matter interactions through plasmonic
nanostructures provides entirely new opportunities for greatly improving the
detection limits of chiroptical spectroscopies down to the single molecule
level. The most pronounced of these chiral interactions occur in the
ultraviolet (UV) range of the electromagnetic spectrum, which is difficult to
access with conventional localized plasmon resonance based sensors. Although
Surface Plasmon Polaritons (SPPs) on noble metal films can sustain resonances
in the desired spectral range, their transverse magnetic nature has been an
obstacle for enhancing chiroptical effects. Here we demonstrate, both
analytically and numerically, that SPPs excited by near-field sources can
exhibit rich and non-trivial chiral characteristics. In particular, we show
that the excitation of SPPs by a chiral source not only results in a locally
enhanced optical chirality but also achieves manifold enhancement of net
optical chirality. Our finding that SPPs facilitate a plasmonic enhancement of
optical chirality in the UV part of the spectrum is of great interest in chiral
bio-sensing.

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The categories of this paper are: cs
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The categories of this paper are: math
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin