Weiping Wang, Jiarui Yu, Xiaoyan Hu, Shaoyu Zhao. Simulation analysis of mid-wave infrared polarization grating performance influenced by the polarizer structural parameters[J]. Infrared and Laser Engineering, 2021, 50(11): 20210132
- Infrared and Laser Engineering
- Vol. 50, Issue 11, 20210132 (2021)
![Schematic diagram of super-pixel [18]](/richHtml/irla/2021/50/11/20210132/img_1.jpg)
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
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Table 1. Polarization grating parameters simulation results of mid-wave infrared integrated polarization detector
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