Helmholtz Bright Spatial Solitons and Surface Waves at Power-Law Optical Interfaces

Figure 8

External refraction of spatial solitons at a nonlinear interface with 𝛼=2.0 for a nonparaxial angle 𝜃_inc=30^∘ for 𝑞=1 and different values of 𝜅. The peak amplitude of the incident beam in each case is (a) 𝜂₀=1.0 and (b) 𝜂₀=2.0.

(a)

(b)