Performance analysis of grating-assisted phase-shifting incoherent digital holography with multiple image sensors

Teruyoshi Nobukawa; Yutaro Katano; Tetsuhiko Muroi; Nobuhiro Kinoshita; Kei Hagiwara; Norihiko Ishii

doi:10.1117/12.2617697

22 July 2022 Performance analysis of grating-assisted phase-shifting incoherent digital holography with multiple image sensors

Teruyoshi Nobukawa, Yutaro Katano, Tetsuhiko Muroi, Nobuhiro Kinoshita, Kei Hagiwara, Norihiko Ishii

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Proceedings Volume 12277, 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology; 1227702 (2022) https://doi.org/10.1117/12.2617697
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

We previously proposed a grating-assisted phase-shifting method for incoherent digital holography (IDH). This method leverages the diffraction of a binary phase grating, making it possible to create four self-interference holograms with different phase shifts in parallel. By simultaneously capturing the holograms with four image sensors, implementing a four-step phase-shifting algorithm and detecting complex amplitude distribution at a single exposure are possible. In this study, we investigated the effect of the axial misalignment of image sensors on the reconstructed images in the grating-assisted phase-shifting method via numerical simulations. The numerical simulations are based on the scalar diffraction theory and allows us to emulate IDH systems. The numerical results provide basic insight and a guideline to design an optical setup for the method within an acceptable tolerance.

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Teruyoshi Nobukawa, Yutaro Katano, Tetsuhiko Muroi, Nobuhiro Kinoshita, Kei Hagiwara, and Norihiko Ishii "Performance analysis of grating-assisted phase-shifting incoherent digital holography with multiple image sensors", Proc. SPIE 12277, 2021 International Conference on Optical Instruments and Technology: Optical Systems, Optoelectronic Instruments, Novel Display, and Imaging Technology, 1227702 (22 July 2022); https://doi.org/10.1117/12.2617697

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KEYWORDS

Image sensors

Holograms

3D image reconstruction

Phase shifts

Image quality

Diffraction gratings

Digital holography

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