Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Real- and Fourier-space observation of the anomalous $\pi$-mode in
  Floquet engineered plasmonic waveguide arrays   We present a joint experimental and theoretical study of the driven
Su-Schrieffer-Heeger model implemented by arrays of evanescently coupled
plasmonic waveguides. Floquet theory predicts that this system hosts for
suitable driving frequencies a topologically protected edge state that has no
counterpart in static systems, the so-called anomalous Floquet topological
$\pi$-mode. By using real- and Fourier-space leakage radiation microscopy in
combination with edge- and bulk excitation, we unequivocally identify the
anomalous Floquet topological $\pi$-mode and study its frequency dependence.

15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
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The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga