Fig. 1. Structure diagram and parameters of U-shaped element structure. (a) Three-dimensional diagram of U-shaped element structure; (b) schematic diagram of xy plane of U-shaped element structure; (c) parameterized scanning result of outer edge length S; (d) parameterized scanning result of height h; (e) parameterized scanning result of lattice constant A

Fig. 2. Phases of U-shaped element structure. (a) Phases after 45° rotation; (b) phases after -45° rotation

Fig. 3. Beam deflector with eight unit structures and phases corresponding to eight unit structures

Fig. 4. Electric fields and deflection angles of beam deflector. (a) Phenomenon of XLP incidence; (b) phenomenon of YLP incidence; (c) phenomenon of LCP incidence; (d) phenomenon of RCP incidence

Fig. 5. Arrangement of 32 element structures of super lens and phases corresponding to eight element structures selected by super lens

Fig. 6. Phenomena after different polarization states of light incident. (a) Phase and intensity diagrams obtained when XLP is incident; (b) phase and intensity diagrams obtained when YLP is incident; (c) phase and intensity diagrams obtained when LCP is incident; (d) phase and intensity diagrams obtained when RCP is incident

Fig. 7. Focal depth and focal spot radius of super lens. (a) Focal depth; (b) focal spot radius

Fig. 8. Intensity distributions of super lens with focal lengths of 6 μm,8 μm, and 10 μm, respectively when XLP, YLP, LCP, and RCP are incident