Spatial incoherence-driven optical reconstruction of holograms with observer shift-invariance

Yeo Ju Sohn; Daeho Yang

doi:10.1038/s41377-025-01823-z

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Spatial incoherence-driven optical reconstruction of holograms with observer shift-invariance

Original Articles

- Spatial incoherence-driven optical reconstruction of holograms with observer shift-invariance
- Light: Science & Applications Vol. 14, Issue 7, Pages: 1942-1953(2025)
- Affiliations：
  
  1.Department of Family Medicine, Ewha Womans University College of Medicine, Seoul 07804, South Korea
  2.Department of Physics, Gachon University, Seongnam, Gyeonggi-do 13120, South Korea
- Author bio：
  
  Daeho Yang (sheepvs5@gachon.ac.kr)
- Funds：
- DOI：10.1038/s41377-025-01823-z
  CLC：
- Received：25 September 2024，
  
  Revised：23 February 2025，
  
  Accepted：09 March 2025，
  
  Published Online：12 May 2025，
  
  Published：31 July 2025
- Accepted：
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Sohn, Y. J. & Yang, D. Spatial incoherence-driven optical reconstruction of holograms with observer shift-invariance. Light: Science & Applications, 14, 1942-1953 (2025).
DOI：

Sohn, Y. J. & Yang, D. Spatial incoherence-driven optical reconstruction of holograms with observer shift-invariance. Light: Science & Applications, 14, 1942-1953 (2025). DOI： 10.1038/s41377-025-01823-z.

摘要

Abstract

Coherence preserves phase consistency between wavefields

enabling accurate recording and reconstruction in holography. Although recent advances in computational optics have realized holographic data acquisition using incoherent light by computationally retrieving information

optical reconstruction still requires partially coherent light sources. We demonstrate a hologram that reconstructs 3-dimensional distribution utilizing incoherence. By decomposing incoherent light into infinitesimal coherent lights and calculating their propagations

the incoherent sum is optimized to resemble the desired 3-dimensional scene

whereas individual coherent lights reconstruct completely different intensities. Incoherence provides high image quality and a wide eyebox

with the reconstructed intensity remaining shift-invariant under pupil displacement

allowing a 1000-fold expansion of the eyebox. We confirm the shift-invariance through a proof-of-concept experiment and demonstrate real-time synthesis of incoherent holograms using a neural network

significantly reducing computational costs. Our method could inspire new approaches in photonics using incoherent light and be practically adopted in holographic displays.

关键词

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references

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