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Chin. Phys. B, 2009, Vol. 18(7): 2764-2768    DOI: 10.1088/1674-1056/18/7/023
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A new method of aperture synthetizing in digital holography

Zhang Qing-Sheng(张庆生), ü Xiao-Xu(吕晓旭), Yu Qing-Ting(余清婷), and Liu Gan-Yong(刘赣勇)
School of Information Photoelectric Science and Engineering, South China Normal University, Guangzhou 510006, China
Abstract  This paper proposes a new method of aperture synthetizing in digital holography based on the principle of holography. In the new method aperture synthetizing is achieved by reconstructing each sub-hologram respectively, firstly, moving each reconstructed wave field referred to the benchmark reconstructed wave field according to the relationship between spacial motion and frequency shift, and finally splicing them by using superposition. Two different recording ways, using plane wave to record and using spherical wave to record, are analyzed, and their moving formula is deduced, too. Simulation and experiment are done. The results show that in comparison with the traditional method of aperture synthetizing in digital holography, the new method can decrease calculation and save reconstructed time obviously which has better applicability.
Keywords:  holography      digital holography aperture synthetizing resolution calculation time  
Received:  23 June 2008      Revised:  24 July 2008      Accepted manuscript online: 
PACS:  42.40.-i (Holography)  
  42.30.Wb (Image reconstruction; tomography)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 60747001, 60877070 and 60467003).

Cite this article: 

Zhang Qing-Sheng(张庆生), ü Xiao-Xu(吕晓旭), Yu Qing-Ting(余清婷), and Liu Gan-Yong(刘赣勇) A new method of aperture synthetizing in digital holography 2009 Chin. Phys. B 18 2764

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