Optical surface plasmon resonance has been known for a long time. In Kretschmann's configuration, the optical coupling of an incident light to collective oscillation of electrons along an interface between a metal and a dielectric, the optical coupling of an incident light to collective oscillation of electrons is governed by the metallic thickness. In the present work, we discuss the use of bimetallic structure to generate surface plasmonpolaritons (SPPs). Firstly, we studied the excitation of surface plasmons in structure with two interfaces and the influence of metal (P/Air and P/Au/Air). Secondly, we present the analytical results of the reflected light (vs. the incidence angle) in Structure to three interfaces (P/Au/Air/Au) with an electromagnetic wave in the visible range (λ = 680 nm). In particular, for the metals, we have taken a frequency-dependence in their dielectric permittivity εAu (λ) dependence and described by the Drude critical point model. Finally, we found the basic characteristics for the resonances of the surface Plasmon polaritons. We underline an important result to produce coupling phenomenon where the surface plasmon resonance becomes independent of the metallic thickness. The plasmonic resonance is just shifted towards total reflection.