Phase correction and resolution improvement of digital holographic image in numerical reconstruction with angular multiplexing

被引：4
作者：
Yan, Xiaobo [1 ]
Zhao, Jianlin [1 ]
Di, Jianglei [1 ]
Jiang, Hongzhen [1 ]
Sun, Weiwei [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Sci, Inst Opt Informat Sci & Technol, Shaanxi Key Lab Opt Informat Technol, Xian 710072, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2009年 / 7卷 / 12期
关键词：
3-DIMENSIONAL MICROSCOPY;
D O I：
10.3788/COL20090712.1072
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A phase correction method is presented to remove the phase slope of the sub-holograms caused by the multi-direction illumination on object in digital holography. To improve the resolution of the reconstructed holographic images, two sub-holograms are recorded by using angular multiplexing and their phase slope parameter is obtained by theoretical analysis. Introducing a phase correction parameter to this phase slope, the ideal complex reconstructed image can be obtained by superposing the reconstructed object wave fields of the two sub-holograms. Experimental results demonstrate that the resolution of the reconstructed image can be effectively enhanced.
引用
收藏
页码：1072 / 1075
页数：4
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