Photonics Research, Volume. 12, Issue 5, 1098(2024)
Wide-angle digital holography with aliasing-free recording
Fig. 3. (a) Exemplary hologram
Fig. 4. Filter size, its position, and the exemplary Fourier spectrum of recorded hologram in (a) phase-shifting and (b) off-axis mode.
Fig. 5. (a) Scheme of piecewise field curvature compensation process. (b) Cross section of window filters
Fig. 6. 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.
Fig. 7. Reconstructions of (a) entire calibration scene at distance
Fig. 8. (a) Photograph of the experimental model showing the scene’s volume. (b) Photograph of the scene from the RF plane.
Fig. 9. 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
Fig. 10. 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)
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)
CSTR:32188.14.PRJ.512314