Discrete and Continuous Models and Applied Computational ScienceDiscrete and Continuous Models and Applied Computational Science2658-46702658-7149Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)8472Peculiarities of Light Scattering on the Rough Surface of a Gradient WaveguideOsovitskyA NКафедра радиофизики; Российский университет дружбы народов; Peoples Friendship University of Russia-Peoples Friendship University of Russia1501200919610108092016Copyright © 2009,2009Some peculiarities of light scattering in thin-film and gradient waveguides are found. For ion-exchange fabricated waveguides a developed model of refractive index function is proposed. The maximum sensibility of the roughness spectrum waveguide measurement method is derived for waveguides with different index functions in near-surface region.рассеяние светашероховатостьградиентный волноводуточненная модельчувствительностьрассеянная мощность