Mahmoud A. Zaky

High sensitivity infrared gas sensing and filtering using metasurfaces plasmonic ring resonators

This work investigates a plasmonic metal–insulator–metal (MIM) ring structure periodically coupled to dual resonators and a defect cell, engineered for infrared filtering and gas sensing. The optical response is modeled numerically using the finite element method in COMSOL Multiphysics, enabling accurate analysis of st...