Surface solitons at interfaces of arrays with spatially-modulated nonlinearity

Abstract

We address the properties of two-dimensional surface solitons supported by the interface of a waveguide array whose nonlinearity is periodically modulated. When the nonlinearity strength reaches its minima at the points where the linear refractive index attains its maxima, we found that nonlinear surface waves exist and can be made stable only within a limited band of input energy flows, and for lattice depths exceeding a lower threshold.

13 pages, 3 figures, to appear in Optics Letters

References in corpus (8)

• Observation of surface gap solitons in semi-infinite waveguide arrays
• Observation of two-dimensional surface solitons in anisotropic waveguide arrays
• Discrete solitons and nonlinear surface modes in semi-infinite waveguide arrays
• Surface vortex solitons
• Multipole-mode surface solitons
• Generation of surface soliton arrays
• Discrete surface solitons in two dimensions
• Discrete surface solitons in two-dimensional anisotropic photonic lattices

Cited by in corpus (8)

• Solitons in nonlinear lattices
• Light propagation and localization in modulated photonic lattices and waveguides
• Solitons in combined linear and nonlinear lattice potentials
• Stabilization of multi-beam necklace solitons in circular arrays with spatially modulated nonlinearity
• Two-dimensional solitons and vortices in media with incommensurate linear and nonlinear lattice potentials
• Matter-wave solitons and finite-amplitude Bloch waves in optical lattices with a spatially modulated nonlinearity
• Surface Gap Soliton Ground States for the Nonlinear Schrödinger Equation
• Soliton dynamics at an interface between uniform medium and nonlinear optical lattice