Fig. 1. Structure schematic of MIM type waveguide

Fig. 2. (a) Effective refractive index neff and (b) dispersion diagram of antisymmetric bound mode and symmetric bound mode in MIM waveguide; when the incident wavelength is 1310 nm, Ex distributions of (c) antisymmetric bound mode and (d) symmetric bound mode of air; Exdistributions of (e) antisymmetric bound mode and (f) symmetric bound mode of SiO2; when the incident wavelength is 1550 nm, Ex distributions of (g) antisymmetric bound mode and (h) symmetric bound mode of air; Ex distributions of (i) an

Fig. 3. Structure schematic of MIM WBG

Fig. 4. (a) Dispersion diagram and (b) transmission spectrum of MIM WBG

Fig. 5. Ex distributions of symmetric bound mode with the energy of (a) 0.68 eV, (b) 0.72 eV, (c) 0.8 eV, (d) 0.94 eV and(e) 1.07 eV, respectively; Ex distributions of antisymmetric bound mode for with the energy of (f) 0.8 eV and (g) 0.94 eV, respectively

Fig. 6. Dispersion diagram of MIM WBG with different refractivity deviations