G. Palasantzas, SPLITTING OF THE DISPERSION-RELATION OF SURFACE-PLASMONS ON A ROUGH SELF-AFFINE FRACTAL SURFACE, Physical review. B, Condensed matter, 49(8), 1994, pp. 5726-5728
The surface-plasmon dispersion relation for a statistically rough surf
ace can display a splitting under specific conditions. Calculations of
the dispersion-relation splitting are performed in terms of a correla
tion model or self-affine fractal rough surfaces with analytic form of
the associated roughness spectrum, G(K) is-proportional-to (1+aK2xi2)
-1-H. The dependence of the splitting on the roughness exponent H is i
nvestigated.