Design and Study of Achromatic Phase-Only Superresolving Pupil Filter

Zhu, Huafeng; Xu, Dan; Wang, Xiumin; Mao-jin, Yun; Yujie, Nan; Wang, Ning; Li, Dailin; Tian, Yuanxin

doi:10.3788/aos201232.0522001

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“…1952 年，di Francia [5] 首次将超分辨天线的概念引入到光学超分辨领域，并提出和设计了最早的振幅型光瞳滤波器。早期对超分辨光瞳滤波器的研究，主要集中在各种形式的振幅型光瞳滤波器及其应用。这不仅是因为振幅型光瞳滤波器 [6][7][8][9][10] 结构简单、容错性好，当时振幅型光瞳滤波器相比相位型光瞳滤波器 [11][12][13][14][15][16][17] 制作简单也是一个重要的原因。南玉杰等 [7]…”

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Effect of Incident Light Field Distribution on Superresolution and DOF of Superresolution Pupil Filter

Tianyang¹,

Zhaopeng²,

Huafeng³

et al. 2014

激光与光电子学进展

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The optical pupil filter is regarded as one of the most important devices in the manipulation of intensity distribution in the focal volume. The effect of different incident light distributions on the superresolution performance and the depth of focus (DOF) of superresolsing pupil filters are studied based on the scalar diffraction theory of light. The results indicate that there is little change of superresolution performance and DOF extension when the light with Gauss function distribution incidents compared with uniform light incidence with equal total incident light energy; little change of spot compression ratio is shown, the Strehl ratio is lower and the DOF is extended when the incident light with Gauss function distribution incidents; while for the incident light with the first order Bessel function, the spot compression ratio and the DOF decrease, the Strehl ratio gets large increase. In general, superresolution can be more easily realized with more light intensity distributed along the verge of the pupil, and the increase of either Strehl ratio or DOF is based on sacrifice of the other one.

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