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
       

Magnetic field distributions at wavelengths of five transmission peaks: (a) 555 nm, (c) 805 nm, (e) 1039 nm, (g) 1337 nm, (i) 1625 nm and of five transmission dips (b) 586 nm, (d) 854 nm, (f) 1116.5 nm, (h) 1354.5 nm, and (j) 1701 nm.