Coupled-mode Analysis of Plasmonic MIM Waveguide Coupled with a Resonant Cavity

The coupling coefficients of two parallel metal-insulator-metal (MIM) plasmonic waveguides are investigated using the analysis of the coupled-mode equations. The frequency characteristics of the power transmittance of a MIM waveguide coupled with a resonant cavity are studied and compared with the simulation results obtained from the FDTD method into which motion equations of free electrons are installed.