19 April 2002 Multiple fractional Fourier transform holography
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In this paper, we introduce the recording and reconstruction theories of the multiple fractional Fourier transform hologram (M-FRTH). We fabricated a multiple fractional Fourier transform hologram, and obtained satisfying reconstruction results. The experimental result shows that the M-FRTH has a high anti-counterfeiting capacity and can be used in the fabrication of the trademark, ID, and the notes.
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Yangsu Zeng, Yixiao Zhang, Feng Gao, Fuhua Gao, Xiaoyang Huang, Yongkang Guo, "Multiple fractional Fourier transform holography", Proc. SPIE 4677, Optical Security and Counterfeit Deterrence Techniques IV, (19 April 2002); doi: 10.1117/12.462730; https://doi.org/10.1117/12.462730

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