Photonics Research, Volume. 12, Issue 5, 1098(2024)

Wide-angle digital holography with aliasing-free recording

Rafał Kukołowicz, Izabela Gerej, and Tomasz Kozacki*
Author Affiliations
  • Institute of Micromechanics and Photonics, Warsaw University of Technology, 02-525 Warsaw, Poland
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    Figures & Tables(10)
    Scheme of the WADH setup.
    Concept of hologram registration in the WADH setup.
    (a) Exemplary hologram H and (b) zoom of the fringe pattern.
    Filter size, its position, and the exemplary Fourier spectrum of recorded hologram in (a) phase-shifting and (b) off-axis mode.
    (a) Scheme of piecewise field curvature compensation process. (b) Cross section of window filters Wq.
    Illustration of calibration process geometry: registration geometry (black lines) with axially misaligned camera and reconstruction geometry (red lines) assuming the camera is set at lens focal plane.
    Reconstructions of (a) entire calibration scene at distance zo=1000 mm for proper camera position. Yellow dotted box corresponds to the area for zooms of reconstructed test targets for camera shifts d: (b) −0.3 mm, (c) 0 mm, and (d) +0.3 mm.
    (a) Photograph of the experimental model showing the scene’s volume. (b) Photograph of the scene from the RF plane.
    Numerical reconstructions of holograms, registered in two proposed modes: (a), (b) off-axis and (c), (d) phase-shifting. Panels (a) and (c) present a single hologram, while (b) and (d) present an averaged one obtained by averaging 20 hologram reconstructions. (e) Reconstructions for Petzval curvature correction with different Q.
    Zoomed details of single reconstructed hologram registered in (a), (e), (i) off-axis and (b), (f), (j) phase-shifting modes, and of averaged hologram reconstructions registered in (c), (g), (k) off-axis and (d), (h), (l) phase-shifting modes. Figures (a)–(d) present zooms of the reconstructed left horse’s head, (e)–(h) the part of right Hussar’s ornated pauldron, and (i)–(l) the fragment of the coniferous tree. Displayed details are at distances 750 mm, 910 mm, and 1020 mm, respectively.
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    Rafał Kukołowicz, Izabela Gerej, Tomasz Kozacki, "Wide-angle digital holography with aliasing-free recording," Photonics Res. 12, 1098 (2024)

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    Paper Information

    Category: Holography, Gratings, and Diffraction

    Received: Nov. 16, 2023

    Accepted: Feb. 25, 2024

    Published Online: May. 7, 2024

    The Author Email: Tomasz Kozacki (tomasz.kozacki@pw.edu.pl)

    DOI:10.1364/PRJ.512314

    CSTR:32188.14.PRJ.512314

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