Chinese Optics, Volume. 18, Issue 4, 839(2025)
Optical system design and polarization aberration compensation based on vector diffraction
Fig. 1. Composition of LWIR polarization optics system containing DMD
Fig. 3. Reflection elevation angle and reflection azimuth angle vs. incident elevation angle and incident azimuth angle for each diffraction order
Fig. 4. Dop distributions of (−1, 0) and (0, −1) orders when
Fig. 5. Dop distributions of (−1, 0) and (0, −1) orders when
Fig. 6. Diffraction efficiency of TE and TM polarized light is plotted against incident elevation angle
Fig. 8. Image quality evaluation of the whole optical system. (a) MTF curve; (b) spot diagram; (c) field curve/distortion
Fig. 11. Image quality evaluation of the whole optical system after compensation. (a) MTF curve; (b) spot diagram; (c) field curve/distortion
Table 1. Dop average values of (−1, 0), (0, −1) orders
View tableView in ArticleTable 1. Dop average values of (−1, 0), (0, −1) orders
Diattenuation (−1, 0) order (0, −1) order D=0.04 0.9954 0.9975 D=0.53 0.9424 0.9685
Table 2. Optical system’s parameters
View tableView in ArticleTable 2. Optical system’s parameters
Parameter Indicator Wavelength/μm 8~12 Field of view FOV(X/Y)/(°) 2.16/1.6 F number 1 DMD array size/pixel 1024 ×768DMD pixel size/pixel 13.68 Detector array size/pixel 640×512 Detector pixel size/μm 12
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Ying-chao LI, Wen-chao YU, Chao WANG, Kai-kai WANG, Jia-nan LIU, Qi WANG, Zhuang LIU. Optical system design and polarization aberration compensation based on vector diffraction[J]. Chinese Optics, 2025, 18(4): 839
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Received: Jan. 7, 2025
Accepted: Feb. 26, 2025
Published Online: Aug. 13, 2025
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