title: Plasmonic kinks and walking solitons in nonlinear lattices of metal nanoparticles.
abstract: We study nonlinear effects in one-dimensional (1D) arrays and two-dimensional (2D) lattices composed of metallic nanoparticles with the nonlinear Kerr-like response and an external driving field. We demonstrate the existence of families of moving solitons in 1D arrays and characterize their properties such as an average drifting velocity. We also analyse the impact of varying external field intensity and frequency on the structure and dynamics of kinks in 2D lattices. In particular, we identify the kinks with positive, negative and zero velocity as well as breathing kinks with a self-oscillating profile.
authors.affiliation: Max Planck Institute for the Science of Light, Erlangen 91058, Germany ITMO University, St Petersburg 197101, Russia nanometa@gmail.com.
authors.forename: Roman E
authors.initials: RE
authors.lastname: Noskov
authors.affiliation: Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200, Australia.
authors.forename: Daria A
authors.initials: DA
authors.lastname: Smirnova
authors.affiliation: ITMO University, St Petersburg 197101, Russia Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200, Australia.
authors.forename: Yuri S
authors.initials: YS
authors.lastname: Kivshar
keywords: bistability; kink; metallic nanoparticle; modulation instability; soliton