Simulation of Power Transfer in Plasmonic Waveguide Coupler

This article investigates the power transfer dynamics in a Plasmonic waveguide coupler. The coupler is designed by cutting two parallel air grooves in a silver metallic sheet. The structure of the designed coupler is simulated using the finite difference-time-domain method, to find the impact of the wavelength of the radiation and types of the metals on power transfer characteristics in the coupler.