Novel properties of soliton-plasmon interactions

Abstract

We present the numerical modeling of the interaction between a spatial soliton and a surface plasmon polariton under leak and strong coupling in the following two cases: at metal/dielectric/Kerr structures and metal/Kerr structures in 1D. Here, we solved the vectorial and nonlinear wave equation using a novel iterative method based in self-autoconsistency, and we found two kinds of nonlinear stationary solutions called odd and even modes. On the other hand, the propagation of the stationary solutions is performed for the metal/Kerr system, and quantitatively it shows that odd modes are more stable than even modes when the spatial soliton and surface plasmon are strongly coupled. Also, we analyzed the influence of the dielectric layer between the metal and Kerr media, and we discuss their implication and feasibility for applications in photonic nanodevices. Additionally, the advantages and disadvantages of the numeric method used to obtain the stationary solutions are discussed. The results obtained in this work are reproducible and contributes with new information for the development of power-tunable photonic nanocircuits based in nonlinear plasmonic waveguides.