Design & Analysis of A MIM Based Highly Sensitive H-Shaped Ring Resonator Embedded with Gold Nanodefects

Abstract

In this paper, we demonstrate a MIM (metal-insulator-metal) waveguide plasmonic H-shaped resonator with highly sensitive performance. The electric field distribution and the detection of materials in the range of RI (refractive index) 1-1.05 is implemented using FEM method in COMSOL Multiphysics. Highest sensitivity of 7706.907 nm/ RIU is obtained. The integration of gold nanodefects (NDs) and a stub structure has proved to show enhanced sensor performance. The proposed sensor can give a new dimension to the scenario of gas sensing.