中国物理B ›› 2024, Vol. 33 ›› Issue (11): 114204-114204.doi: 10.1088/1674-1056/ad7c2e

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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. 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
  • 收稿日期:2024-07-13 修回日期:2024-09-04 接受日期:2024-09-18 出版日期:2024-11-15 发布日期:2024-11-15
  • 基金资助:
    Project supported by the Special Project of Central Government Guiding Local Science and Technology Development in Beijing 2020 (Grant No. Z201100004320006).

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. 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
  • Received:2024-07-13 Revised:2024-09-04 Accepted:2024-09-18 Online:2024-11-15 Published:2024-11-15
  • Contact: Weinan Gao E-mail:wngao@mail.ipc.ac.cn
  • Supported by:
    Project supported by the Special Project of Central Government Guiding Local Science and Technology Development in Beijing 2020 (Grant No. Z201100004320006).

摘要: 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.

关键词: computer-generated hologram (CGH), wavefront recording plane (WRP), backward ray tracing

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.

Key words: computer-generated hologram (CGH), wavefront recording plane (WRP), backward ray tracing

中图分类号:  (Computer-generated holograms)

  • 42.40.Jv
42.40.-i (Holography)