7 February 2005 Computer-generated holograms for 3D objects using the Fresnel zone plate
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Abstract
A new fast algorithm using the “host” Fresnel zone plate was proposed to improve the computational efficiency of computer-generated hologram (CGH) for 3D objects. By reading .3DS files, the spatial position information of each point of the 3D object was obtained directly. With the illumination of plane wave, the “host” Fresnel zone plate of a single point could be equal to all points located in the same depth plane - as the Fresnel zone plate was translated and superimposed along the horizontal and vertical axes. Consequently, the hologram of a 3D object could be built up by superimposing different Fresnel zone plates in the corresponding depth planes. For a digital object composed of 1060 points, it cost about 83s to generate a hologram of 1024*768 pixels. The CGH of 3D objects with the results of the reconstruction was presented in this paper, which proved the feasibility of this algorithm.
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Xiaojie Zhang, Xiaojie Zhang, Xu Liu, Xu Liu, Xiaoxi Chen, Xiaoxi Chen, } "Computer-generated holograms for 3D objects using the Fresnel zone plate", Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); doi: 10.1117/12.570412; https://doi.org/10.1117/12.570412
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