Volume hologram for common-path digital holographic microscopy

Chen-Ming Tsai; Yuan Luo

doi:10.1117/12.3007927

20 September 2023 Volume hologram for common-path digital holographic microscopy

Chen-Ming Tsai, Yuan Luo

Proceedings Volume 12608, Biomedical Imaging and Sensing Conference; 1260814 (2023) https://doi.org/10.1117/12.3007927
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

Digital holography microscopy (DHM) is a quantitative phase imaging technique that is useful to observe transparent samples. The diffraction grating is most widely employed in the common-path DHM (CP-DHM) to allow the object beams and reference beams to be separated at a small angle and propagate almost along the same optical path. However, the conventional thin grating's intrinsic multiple diffraction orders cause CP-DHM to suffer a significant power loss. To address this issue, we propose a volume holographic-based CP-DHM that utilizes the single diffraction order characteristics of volume grating. The two beams in CP-DHM can be generated by volume holograms with low power loss and ease. Our method is advantageous as compared to the other closely related methods, and it is expected to increase the applications of common-path DHM systems.

Citation Download Citation

Chen-Ming Tsai and Yuan Luo "Volume hologram for common-path digital holographic microscopy", Proc. SPIE 12608, Biomedical Imaging and Sensing Conference, 1260814 (20 September 2023); https://doi.org/10.1117/12.3007927

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