Adaptive optics scanning system with two-zone phase filters

被引：0
|
作者：
Li, Lingxiao [1 ,2 ,3 ]
He, Yi [1 ,2 ]
Wang, Yuanyuan [1 ,2 ,3 ]
Wei, Ling [1 ,2 ]
Lu, Jing [1 ,2 ]
Zhang, Yudong [1 ,2 ]
机构：
[1] Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Sichuan, Peoples R China
[2] Chinese Acad Sci, Inst Opt & Elect, Chengdu, Sichuan, Peoples R China
[3] Univ Chinese Acad Sci, Beijing, Peoples R China
来源：
JOURNAL OF MODERN OPTICS | 2018年 / 65卷 / 16期
基金：
中国国家自然科学基金;
关键词：
Phase modulation; adaptive optics scanning system; DIFFRACTIVE SUPERRESOLUTION; LASER OPHTHALMOSCOPY; SHAPED APERTURES; AXIAL RESOLUTION; MICROSCOPE; POLARIZATION; ELEMENTS; DESIGN; LIMITS; SIZE;
D O I：
10.1080/09500340.2018.1471173
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An adaptive confocal system employing pupil filters and two light sources has been designed, providing improved transverse resolution. Coherent transfer functions are studied to show the transfer capability at different frequencies and the limitations of the filters in obtaining clear improvements in the focal plane. Then, intensity point spread functions are analysed to reveal the dependence of the resolution on the size of the pinhole and the inner radius of the filter. An experiment has been carried out using a liquid crystal phase modulator and an artificial eye to validate the simulation results. It proves that the system with two light sources can correct the aberrations, with the basic effect of the phase modulation being to decrease the low spatial frequencies and increase the high spatial frequencies. Improvement of the transverse resolution can be achieved by sacrificing light intensity and contrast.
引用
收藏
页码：1890 / 1901
页数：12
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