Multiple Fano resonances in metal–insulator–metal waveguide with umbrella resonator coupled with metal baffle for refractive index sensing
Qi Yun-Ping1, 3, †, Wang Li-Yuan1, Zhang Yu1, Zhang Ting1, Zhang Bao-He1, Deng Xiang-Yu1, Wang Xiang-Xian2
       

COMSOL (FEM) simulated transmission spectra of proposed structures respectively with only metal baffle (green solid line), only USR & VCS (blue dash-dot line), and coupled system (red dotted line).