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Nonlinear propagation and quasi self-confinement of light in plasmonic resonant media

Shvedov, Vladlen; Cyprych, Konrad; Salazar-Romero, M.Yadira; Izdebskaya, Yana; Krolikowski, Wieslaw


We study nonlinear propagation of light in colloidal suspension of metallic nanoparticles, in the regime of particles surface plasmon resonance. We show that the propagation exhibits features typical for purely defocusing media and the observed spatial confinement is not a real self-trapping, as for solitons, but rather than is caused by the phase modulation of the beam via nonlocal defocusing nonlinearity. We also show that the light-induced refractive index change in the suspension leads to...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.26.023196
Access Rights: Open Access


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