Surface-wave solitons on the interface between a linear medium and a nonlocal nonlinear medium

摘要

We address the properties of surface-wave solitons on the interface between asemi-infinite homogeneous linear medium and a semi-infinite homogeneousnonlinear nonlocal medium. The stability, energy flow and FWHM of the surfacewave solitons can be affected by the degree of nonlocality of the nonlinearmedium. We find that the refractive index difference affects the powerdistribution of the surface solitons in two media. We show that the differentboundary values at the interface can lead to the different peak position of thesurface solitons, but it can not influence the solitons stability with acertain degree of nonlocality.