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Spatiotemporal double-phase hologram for complex-amplitude holographic displays

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Abstract

This Letter describes an approach to encode complex-amplitude light waves with spatiotemporal double-phase holograms (DPHs) for overcoming the limit of the space-bandwidth product (SBP) delivered by existing methods. To construct DPHs, two spatially macro-pixel encoded phase components are employed in the SBP-preserved resampling of complex holograms. Four generated sub-DPHs are displayed sequentially in time for high-quality holographic image reconstruction without reducing the image size or discarding any image terms when the DPHs are interweaved. The reconstructed holographic images contain more details and less speckle noise, with their signal-to-noise ratio and structure similarity index being improved by 14.64% and 78.79%, respectively.

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DOI:10.3788/COL202018.100901

所属栏目:Holography

基金项目:This work was supported by the National Natural Science Foundation of China (NSFC) (Nos. 61827825 and 61775117) and Tsinghua University Initiative Scientific Research Program (No. 20193080075), as well as the Cambridge Tsinghua Joint Research Initiative.

收稿日期:2020-04-20

录用日期:2020-06-01

网络出版日期:2020-07-30

作者单位    点击查看

隋晓萌:State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
何泽浩:State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
张浩:State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
曹良才:State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
初大平:Centre for Photonic Devices and Sensors, Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK
金国藩:State Key Laboratory of Precision Measurement Technology and Instrument, Department of Precision Instruments, Tsinghua University, Beijing 100084, China

联系人作者:曹良才(clc@tsinghua.edu.cn); 初大平(dpc31@cam.ac.uk);

备注:This work was supported by the National Natural Science Foundation of China (NSFC) (Nos. 61827825 and 61775117) and Tsinghua University Initiative Scientific Research Program (No. 20193080075), as well as the Cambridge Tsinghua Joint Research Initiative.

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引用该论文

Xiaomeng Sui, Zehao He, Hao Zhang, Liangcai Cao, Daping Chu, Guofan Jin, "Spatiotemporal double-phase hologram for complex-amplitude holographic displays," Chinese Optics Letters 18(10), 100901 (2020)

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