Abstract
In this work we proposed a novel approach for the numerical reconstruction of digital holography that uses only an off-axis Fresnel digital hologram and can easily be carrying out in a personal computer. From the presented off-axis holographic principle, the reference wave accompanies to the numerically reconstructed image, also makes the separation to the zero-order and twin images. Therefore, the concept can be applied to suppress the blurring of numerical reconstruction by adding the extra reconstruction plane and the formularized numerically reference wave in the reconstruction procedure. As expected, the blurring images can be separated out and removed from the reconstructed image. Then, by performing the back propagating to the exact reconstruction plane, one can obtain the pure object image without the blurring. In contrast to the temporal phase-shifting digital holographic-based scheme that employs multiple exposures the technique can be more effectively and easily overcome the blurring problem, also provide the practical feasibility in the digital holographic application.
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42.40.-I; 42.30.Wb; 42.40.Ht
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Chen, G., Lin, C., Kuo, M. et al. Numerical reconstruction and twin-image suppression using an off-axis Fresnel digital hologram. Appl. Phys. B 90, 527–532 (2008). https://doi.org/10.1007/s00340-007-2910-5
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DOI: https://doi.org/10.1007/s00340-007-2910-5