Fig. 1. Schematic diagram of super-pixel ^[18]

Fig. 2. Super-pixel structure composed of pixels with polarization directions of 0°, 45°, 90°, and 135°

Fig. 3. Structure diagram of back-illuminated HgCdTe FPA monolithic integrated metal polarization gratings

Fig. 4. Polarization performance simulation model of integrated metal polarization gratings CZT substrated HgCdTe FPA

Fig. 5. Polarization extinction ratio curves of different types of metals

Fig. 6. Influence of polarization grating pitch on extinction ratio

Fig. 7. Influence of polarization grating duty cycle on extinction ratio

Fig. 8. Influence of polarization grating thickness on extinction ratio

Fig. 9. Influence of incident angle on extinction ratio

Fig. 10. Polarization performance simulation model of integrated metal polarization gratings Si substrated HgCdTe FPA

Fig. 11. Influence of SiO₂ thickness on Si substrated detector extinction ratio

Fig. 12. Polarization performance of Al polarization gratings of Si substrated and CdZnTe-based with the same structural parameters