Fig. 1. Structural diagram of silicon nanocross dimer

Fig. 2. Normalized multipole contributions to scattering cross-section of silicon nanocross dimer

Fig. 3. Forward scattering and forward/backward ratio spectra for silicon nanocross dimer

Fig. 4. Forward/backward ratio scattering spectra for silicon nanocross dimer. (a) Under different heights; (b) under different widths

Fig. 5. Electric field enhancement profiles of silicon nanocross dimer. (a) λ=405 nm; (b) λ=484 nm; (c) λ=667 nm; (d) λ=789 nm

Fig. 6. Magnetic field enhancement profiles of silicon nanocross dimer. (a) λ=405 nm; (b) λ=484 nm; (c) λ=667 nm; (d) λ=789 nm

Fig. 7. Surface charge distributions corresponding to silicon nanocross dimer. (a) λ=405 nm; (b) λ=484 nm; (c) λ=667 nm; (d) λ=789 nm

Fig. 8. 2D and 3D far-field distributions corresponding to silicon nanocross dimer. (a) λ=434 nm; (b) λ=612 nm; (c) λ=857 nm