Fig. 1. Schematic diagram of medium metamaterial structure

Fig. 2. Preparation process of dielectric metamaterials

Fig. 3. (a)Influence of asymmetric parameters on transmission spectrum of dielectric metamaterials; (b) influence of different polarization on transmission spectrum

Fig. 4. Electric field distributions of dielectric metamaterials at two wavelengths λ₁ and λ₂, respectively. (a)x-y electric field (λ₁); (b) z-y electric field (λ₁); (c) x-y electric field (λ₂); (d) z-y electric field (λ₂)

Fig. 5. Fano resonance curve fitting

Fig. 6. Influence of asymmetric parameters onQ value

Fig. 7. (a) and (b) are the multipole scattering powers of metamaterials near the two Fano resonance wavelengths, respectively; (c) and (d) are the electric field vector distributions of metamaterials at two Fano resonance wavelengths, respectively

Fig. 8. The influence of structural parameters on the resonant wavelength of metamaterials. (a) Nano pore side length r; (b) refractive index n₁ of nano pore filling material