Plasmonic-Induced transparency based on MIM waveguide achieved by the structure including a rectangular ring and a rectangular strip

摘要

A structure consists of a rectangular ring and a rectangular strip based on metal-insulator-metal (MIM) waveguide is proposed. When the rectangular strip is added in the suitable position, the plasmonic-induced transparency (PIT) effect will occur compared with the original single rectangular ring structure. The transmittance and resonance frequency can be changed via variation length and width of the rectangular strip. The structure is simulated by finite element method (FEM).