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12 December 2021 Natural light reconstruction of three-dimensional image based on two-step volume holography
Taihui Wu, Honglei Wang, Jiacheng Li, Jianshe Ma, Lanfang Li
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Proceedings Volume 12127, International Conference on Intelligent Equipment and Special Robots (ICIESR 2021); 1212728 (2021) https://doi.org/10.1117/12.2625242
Event: International Conference on Intelligent Equipment and Special Robots (ICIESR 2021), 2021, Qingdao, China
Abstract
The classic Denisyuk recording method is commonly used to reproduce three-dimensional (3D) image of volume holography, but its diffraction efficiency is low, and white light irradiation is required to obtain high-brightness reproduced image. Aiming at the above problem, the diffraction characteristics of transmissive and reflective volume holographic gratings are analyzed by Kogelnik’s coupled wave theory. A two-step volume holographic recording method is proposed. Firstly, the transmissive volume hologram is recorded and then the reconstructed image is transferred to the reflective volume hologram. Finally, through this method, the brightness and field of view of the reproduced image are improved, and a clear and bright 3D image can be observed under natural light.
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Taihui Wu, Honglei Wang, Jiacheng Li, Jianshe Ma, and Lanfang Li "Natural light reconstruction of three-dimensional image based on two-step volume holography", Proc. SPIE 12127, International Conference on Intelligent Equipment and Special Robots (ICIESR 2021), 1212728 (12 December 2021); https://doi.org/10.1117/12.2625242
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KEYWORDS
Volume holography
3D image reconstruction
Holograms
Reflectivity
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