1.2k citations · 10.6k across the 189 of their papers we have counts for
6 papers · 2 filters
Four-wave mixing Floquet topological soliton
Sergey K. Ivanov, Yaroslav V. Kartashov, Vladimir V. Konotop
We consider a topological Floquet insulator realized as a honeycomb array of helical waveguides imprinted in weakly birefringent medium. The system accounts for four-wave mixing oc…
Floquet Edge Multicolor Solitons
Sergey K. Ivanov, Yaroslav V. Kartashov, Alexander Szameit +2
Topological insulators are unique physical structures that are insulators in their bulk, but support currents at their edges which can be unidirectional and topologically protected…
Superexponential amplification, power blowup, and solitons sustained by non-Hermitian gauge potentials
Dmitry A. Zezyulin, Yaroslav V. Kartashov, Vladimir V. Konotop
We introduce a continuous one-dimensional non-Hermitian matrix gauge potential and study its effect on dynamics of a two-component field. The model is emulated by a system of evane…
Floquet defect solitons
Sergey K. Ivanov, Yaroslav V. Kartashov, Vladimir V. Konotop
We consider an array of straight nonlinear waveguides constituting a two-dimensional square lattice, with a few central layers tilted with respect to the rest of the structure. It…
Multi-frequency solitons in commensurate-incommensurate photonic moiré lattices
Yaroslav V. Kartashov, Fangwei Ye, Vladimir V. Konotop +1
We predict that photonic moiré patterns created by two mutually twisted periodic sublattices in quadratic nonlinear media allow the formation of parametric solitons under condition…
Metastable two-component solitons near an exceptional point
Dmitry A. Zezyulin, Yaroslav V. Kartashov, Vladimir V. Konotop
We consider a two-dimensional nonlinear waveguide with distributed gain and losses. The optical potential describing the system consists of an unperturbed complex potential dependi…