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20 August 2020 3D printed computer generated volume holograms
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Abstract
Volume holography has been widely investigated for information storage and other applications. An increase in the number of multiplexed holograms leads to dynamic range loss when they are optically recorded. Computer generated holograms can achieve better performance if constructed voxel-by-voxel or as a multilayer structure. Advancements in 3D printing enabled the fabrication of multilayered diffractive elements in the micro-scale. To obtain an accurate design, we deploy the Learning Tomography (LT) method, which is an optimization algorithm for computationally imaging 3D distribution of the refractive index. Here, instead of imaging an object, we define a 3D structure that achieves a desired functionality.
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© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Niyazi Ulas Dinc, Joowon Lim, Eirini Kakkava, Christophe Moser, and Demetri Psaltis "3D printed computer generated volume holograms", Proc. SPIE 11472, Liquid Crystals XXIV, 114720I (20 August 2020); https://doi.org/10.1117/12.2569398
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