Fig. 1. Traditional single-layer metal wire grid model and polarization performance. (a) Metal wire grid structure model; (b) TM transmission and extinction ratio of metal wire grid

Fig. 2. Comparison diagram of traditional double-layer metal wire grid and double-layer slit metal grating. (a) Traditional double-layer metal wire grid; (b) double-layer slit metal wire grid

Fig. 3. Comparison of polarization performance between traditional double-layer metal wire grid and double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 4. Real and imaginary parts of the dielectric constants of metal materials Al, Au, and Ag. (a) Real part; (b) imaginary part

Fig. 5. Relationship between polarization performance of metal materials and double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 6. Real part of refractive index of Al₂O₃ and ZnSe substrate materials

Fig. 7. Relationship between substrate material and polarization performance of double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 8. Relationship between dielectric materials and polarization performance of double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 9. Influence of the period on the polarization performance of the double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 10. Influence of duty cycle ratio of double-layer slit metal grating on polarization performance of double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 11. Relationship between the height H₃ of non-metallic slit column layer and the polarization performance of double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 12. Relationship between metal height and polarization performance of double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 13. Relationship between the height of non-metallic dielectric layer and TM transmission

Fig. 14. Relationship between slit width and polarization performance of double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 15. Polarization performance of double-layer silt metal wire grid. (a) Slit electric field intensity; (b) TM transmission and extinction ratio of wire grid

Fig. 16. Influence of incident angle on the polarization performance of double-layer slit metal wire grid. (a) TM transmission; (b) extinction ratio

Fig. 17. Simulation diagram of double-layer slit metal wire grid micro polarization array

Fig. 18. Optical crosstalk phenomenon between pixels with different polarization directions. (a) 0°; (b) 45°; (c) 90°; (d) 135°

Fig. 19. Crosstalk phenomenon between pixels of different pixel sizes. (a) 3.75 μm; (b) 7.50 μm; (c) 15.00 μm; (d) 30.00 μm

Fig. 20. Effect of suppressing crosstalk between pixels of different pixel sizes. (a) 3.75 μm; (b) 7.50 μm; (c) 15.00 μm; (d) 30.00 μm

Fig. 21. Optical crosstalk and isolation band suppression of optical crosstalk at different electric field strengths. (a) No barrier; (b) barrier height is 130 nm, width is 10 nm; (c) barrier height is 260 nm, width is 10 nm; (d) barrier height is 260 nm, width is 40 nm