Infrared and Laser Engineering, Volume. 49, Issue 2, 214004(2020)

Effect and compensation mechanism of field stop in telescopic super-resolution imaging

Wei Ming1,2, Wang Chao1,2, Li Yingchao1,2, Fu Qiang1,2, Liu Zhuang1,2, Shi Haodong1,2, Li Guanlin1,2, and Jiang Huilin1,2
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  • 1[in Chinese]
  • 2[in Chinese]
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    According to the theory of diffractive optics, the imaging quality influence mechanism of the diffraction effect of the field stop for the field of view selection and side lobes filtering in the pupil function modulated modulation telescope telescopic super-resolution imaging was analyzed, and the compensating principle and method were given. The tiny hole field stop and the four-ring step phase filter were placed in the first image plane and the exit pupil respectively. Theoretical analysis and simulation show that the smaller the field stop aperture, the wider the main lobe of the spot on the final image surface, (even the super-resolution effect will disappear), and the higher the ratio of the peak intensity of the side lobe to the peak intensity of the main lobe. The polynomial fitting of the amplitude and phase fields at the exit pupil and the solving of the modified complex-amplitude pupil filter design parameters can effectively suppress the diffraction effect of the field stop, which leads to a good super-resolution imaging. Moreover, the super-resolution imaging and the pupil effect compensation were combined into one, which did not increase the complexity of the system optical path. The actual experiment was carried out to verify the availability of the above design method. The above research results can be used as a basis for the design of super-resolution imaging system applied in the astronomical observation and space exploration.

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    Wei Ming, Wang Chao, Li Yingchao, Fu Qiang, Liu Zhuang, Shi Haodong, Li Guanlin, Jiang Huilin. Effect and compensation mechanism of field stop in telescopic super-resolution imaging[J]. Infrared and Laser Engineering, 2020, 49(2): 214004

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    Paper Information

    Category: 光学设计

    Received: Oct. 1, 2019

    Accepted: Nov. 17, 2019

    Published Online: Mar. 10, 2020

    The Author Email:

    DOI:10.3788/irla202049.0214004

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