Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Approach to 2D Photodetectors - Absorption of Bloch Surface Waves
  Using Nanometric Thin Graphene Layers   A dielectric multilayer platform has been investigated as a foundation for
two-dimensional optics. In this paper, we present, to the best of our
knowledge, the first experimental demonstration of absorption of Bloch surface
waves in the presence of graphene layers. Graphene layers have been grown
previously via CVD on Cu foils and transferred layer by layer by PMMA-wet
transfer method. We exploit total internal reflection configuration and
multi-heterodyne scanning near-field optical microscopy as a far-field coupling
method and near-field characterization tool, respectively. The absorption is
quantified in terms of propagation lengths of Bloch surface waves. A
significant drop (about 17 times shorter) in the propagation length of surface
waves is observed in the presence of single layer of graphene.

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The categories of this paper are: cs
34
The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
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The categories of this paper are: nlin
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The categories of this paper are: hep-ex
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The categories of this paper are: stat
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: q-bio
30
The categories of this paper are: q-alg