(2+1)D surface solitons at the interface between a linear medium and a nonlocal nonlinear medium

TL;DR

This paper investigates (2+1)D surface solitons at the interface of linear and nonlocal nonlinear media, revealing stable solitons without power thresholds and effects of initial conditions and nonlocality.

Contribution

It demonstrates the existence and stability of single and dipole surface solitons at the interface, influenced by initial values and nonlocality, with new insights into their properties.

Findings

Stable single and dipole surface solitons exist without power thresholds.

Surface soliton properties depend on initial value and nonlocality degree.

Launching a beam away from the interface causes periodic oscillations.

Abstract

We address (2+1)D surface solitons occurring at the interface between a linear medium and a nonlocal nonlinear medium whose nonlinear contribution to the refractive index has a initial value at the interface. We find that there exist stable single and dipole surface solitons which do not exhibit a power threshold. The properties of the surface solitons can be affected by the initial value and the degree of nonlocality. When a laser beam is launched away from the interface, the beam will be periodic oscillations.