Multipole-mode surface solitons

Abstract

We discover multipole-mode solitons supported by the surface between two distinct periodic lattices imprinted in Kerr-type nonlinear media. Such solitons are possible because the refractive index modulation at both sides of the interface glues together their out-of-phase individual constituents. Remarkably, we find that the new type of solitons may feature highly asymmetric shapes and yet they are stable over wide domains of their existence, a rare property to be attributed to their surface nature.

14 pages, 3 figures, to appear in Optics Letters

References in corpus (1)

• Observation of surface gap solitons in semi-infinite waveguide arrays

Cited by in corpus (8)

• Observation of two-dimensional surface solitons in anisotropic waveguide arrays
• Observation of two-dimensional defect surface solitons
• Surface solitons at interfaces of arrays with spatially-modulated nonlinearity
• Surface gap solitons at a nonlinearity interface
• Soliton excitation in waveguide arrays with an effective intermediate dimensionality
• Soliton emission in amplifying optical lattice surfaces
• Interface solitons in two-dimensional photonic lattices
• Soliton shape and mobility control in optical lattices