Super-resolving in telescope imaging system with high Strehl ratio by two-dimensional polynomial phase pupil filter

Chao Wang; Hao-dong Shi; Ying-chao Ling; Lun Jiang; Zhuang Liu; Guan-lin Li

doi:10.1117/12.2505909

30 January 2019 Super-resolving in telescope imaging system with high Strehl ratio by two-dimensional polynomial phase pupil filter

Chao Wang, Hao-dong Shi, Ying-chao Ling, Lun Jiang, Zhuang Liu, Guan-lin Li

Author Affiliations +

Proceedings Volume 10841, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Meta-Surface-Wave and Planar Optics; 1084108 (2019) https://doi.org/10.1117/12.2505909
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

In order to realize the superresolution imaging with a telescope optical system, a two- dimensional polynomial function phase pupil filter with a high strehl ratio is designed, and its improvement for the light distribution around the focal point of the optical imaging system is demonstrated. The result of the theory analysis shows that, when the filter is added into the system, the system optical resolution is increased 1.33 times, and the strehl ratio is 0.75 time as much as that of the system without this pupil filter. The performance of two-dimensional polynomial filter is compared with the other typical phase pupil filters, including the three-zone, the four-zone and the one-dimensional polynomial phase filter. The comparison results show that the strehl ratio of the two-dimensional polynomial filter is the highest in these filters, and the transverse superresolution ratio of this filter is next only to that of the four-zone filter. But the strehl ratio of the four-zone filter is too low to be applied into the telescope.

Citation Download Citation

Chao Wang, Hao-dong Shi, Ying-chao Ling, Lun Jiang, Zhuang Liu, and Guan-lin Li "Super-resolving in telescope imaging system with high Strehl ratio by two-dimensional polynomial phase pupil filter", Proc. SPIE 10841, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Meta-Surface-Wave and Planar Optics, 1084108 (30 January 2019); https://doi.org/10.1117/12.2505909

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KEYWORDS

Super resolution

Optical filters

Image filtering

Imaging systems

Telescopes

Diffraction

Optical resolution

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