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Rapid hologram generation through backward ray tracing and adaptive-resolution wavefront recording plane |
Jianying Zhu(朱建英)1,2, Yong Bi(毕勇)1, Minyuan Sun(孙敏远)1, and Weinan Gao(高伟男)1,† |
1 Applied Laser Research Center, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; 2 University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract An advanced method for rapidly computing holograms of large three-dimensional (3D) objects combines backward ray tracing with adaptive resolution wavefront recording plane (WRP) and adaptive angular spectrum propagation. In the initial phase, a WRP with adjustable resolution and sampling interval based on the object's size is defined to capture detailed information from large 3D objects. The second phase employs an adaptive angular spectrum method (ASM) to efficiently compute the propagation from the large-sized WRP to the small-sized computer-generated hologram (CGH). The computation process is accelerated using CUDA and OptiX. Optical experiments confirm that the algorithm can generate high-quality holograms with shadow and occlusion effects at a resolution of 1024×1024 in 29 ms.
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Received: 13 July 2024
Revised: 04 September 2024
Accepted manuscript online: 18 September 2024
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PACS:
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42.40.Jv
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(Computer-generated holograms)
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42.40.-i
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(Holography)
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Fund: Project supported by the Special Project of Central Government Guiding Local Science and Technology Development in Beijing 2020 (Grant No. Z201100004320006). |
Corresponding Authors:
Weinan Gao
E-mail: wngao@mail.ipc.ac.cn
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Cite this article:
Jianying Zhu(朱建英), Yong Bi(毕勇), Minyuan Sun(孙敏远), and Weinan Gao(高伟男) Rapid hologram generation through backward ray tracing and adaptive-resolution wavefront recording plane 2024 Chin. Phys. B 33 114204
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