Optics and Photonics Society of Iran

In this paper, a plasmonic switch based on MIM waveguide coupled with a resonator is presented that has switching function and controls the Fano profile. The proposed structure is simulated and analyzed using the FDTD method. The results revealed that in the absence of a baffle (the silver band in the waveguide), the transmission spectrum shows a depth at the wavelength of 1100nm, while in the presence of the baffle, due to the interaction between the baffle and the resonator, the structure transmission spectrum shows a sharp Fano profile, which confirms the switching function of this structure. This sharply created profile can be controlled by changing the structure parameters. This structure has the potential for application as a nanosensor, slow-light devices, etc. in integrated optical circuits.