Imaging Science and Photochemistry ›› 2016, Vol. 34 ›› Issue (1): 68-74.DOI: 10.7517/j.issn.1674-0475.2016.01.068

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Comparison of Pre-magnification Digital Holography as CCD Located in Front of Image-plane and Behind the Plane

ZHAO Baoqun1, LI Junxiang2, JIANG Xianan3, ZHU Qiaofen1   

  1. 1. College of Science, Hebei University of Engineering, Handan 056038, Hebei, P. R. China;
    2. College of Clinical Medicine, Hebei University of Engineering, Handan 056000, Hebei, P. R. China;
    3. Hebei Boxia Photoelectric Mdt. Info. Tech. Ltd., Handan 056038, Hebei, P. R. China
  • Received:2015-10-23 Revised:2015-11-04 Online:2016-01-15 Published:2016-01-15


Based on Fresnel diffraction formula and linear system theory, the imaging process of pre-magnification digital holography as CCD located in front of image-plane and behind the plane is analyzed. The point spread functions of the two systems are derived. Then the lateral resolution of the systems are analyzed. The imaging performance of the two systems are compared. Experiments are carried out using a resolution test target.

Key words: digital holography, digital holographic microscopy, pre-magnification digital holography, lateral resolution