Surface Plasmon Polaritons Photonic Device Design and All-optical Modulation
Surface plasmon polaritons (SPPs), which are confined along metal-dielectric interfaces, have attracted great interest in the area of ultracompact photonic circuits due to their strong field confinement and enhancement. COMSOL Multiphysics is an efficient and powerful software package to simulate the characteristics of SPPs. In recent years, we did some works on SPPs in experiments as well as numerical simulations with COMSOL Multiphysics. My talk involves 5 parts, involving asymmetrical dielectric-metal-dielectric (DMD) waveguides placed on the silica substrates, unidirectional surface-plasmon-polariton (SPP) generation with an asymmetric single-nanoslit in a metallic film, ultracompact SPP splitter based on modulations of quasicylindrical waves to the total field, highly efficient all-optical control of SPP generation, and SPP focusing with circles. It is found that all the experiment results are in good agreement with the simulation results with COMSOL Multiphysics.
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