1 October 2002 Elimination of zero-order diffraction in digital holography
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Optical Engineering, 41(10), (2002). doi:10.1117/1.1502682
A simple method to suppress the zero-order diffraction in the reconstructed image of digital holography is presented. In this method, the Laplacian of a detected hologram is used instead of the hologram itself for numerical reconstruction by computing the discrete Fresnel integral. This method can significantly improve the image quality and give better resolution and higher accuracy of the reconstructed image. The main advantages of this method are its simplicity in experimental requirements and convenience in data processing.
Cheng Liu, Yinzhu Li, Xiaotian Cheng, Zhigang Liu, Bo Feng, Jianqiang Zhu, "Elimination of zero-order diffraction in digital holography," Optical Engineering 41(10), (1 October 2002). https://doi.org/10.1117/1.1502682

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