Analysis on the lateral resolution of optical scanning holography system based on random phase encoding using restricted pupils

Analysis on the lateral resolution of optical scanning holography system based on random phase encoding using restricted pupils
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基于受限光瞳随机相位编码的光学扫描全息系统横向分辨率分析

DOI:
10.1080/09500340.2014.909957
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发表时间:
2014-05
影响因子:
1.3
通讯作者:
Xin Zhou
Xin Zhou
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Xin Zhou

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本文分析了光瞳受限的随机相位编码光学扫描全息系统(RPE-OSH)的点扩散函数,并根据瑞利判据的定义,比较了RPE-OSH系统与传统奥什系统的横向分辨率。结果表明,在相同条件下,RPE-奥什系统的主瓣宽度比常规奥什系统窄得多,因此RPE-奥什系统重建图像具有更高的横向分辨率,保留了更多的细节信息。通过对桥弯藻图像重建的数值模拟,验证了这一结论。
In this paper, we analyze the point spread function of optical scanning holography (OSH) system based on random phase encoding (RPE-OSH) with restricted pupils and compare the lateral resolution of RPE-OSH system with the one of conventional OSH system by the definition of Rayleigh criterion. The results show that the main lobe width of RPE-OSH system is much narrower than that of the conventional OSH system under the same conditions; thus, the reconstructed image in RPE-OSH system has a higher lateral resolution and reserves more detailed information. This conclusion is verified by numerical simulations of the Cymbella cymbiformis image reconstruction.
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