Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental demonstration of plasmon-soliton waves   Controlling low power light beam self-confinement with ultrafast response
time opens up opportunities for the development of signal processing in
microdevices. The combination of highly nonlinear medium with the tight
confinement of plasmonic waves offers a viable but challenging configuration to
reach this goal. Here, we report the experimental observation of
plasmon-soliton waves propagating in a chalcogenide-based four-layer planar
geometry engineered to limit plasmon propagation losses while exhibiting
efficient Kerr self-focusing at moderate power. The observations reveal a
strongly enhanced self-focusing undergone by a self-trapped beam propagating
inside the structure. As expected, only TM polarized waves exhibit such a
behavior. Different experimental arrangements are tested that unambiguously
reveal the nonlinear plasmon-soliton coupling which is corroborated by
numerical simulations.

2
The categories of this paper are: math
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg