Sohn Yeo Ju, Yang Daeho
Department of Family Medicine, Ewha Womans University College of Medicine, Seoul, 07804, South Korea.
Department of Physics, Gachon University, Seongnam, Gyeonggi-do, 13120, South Korea.
Light Sci Appl. 2025 May 12;14(1):191. doi: 10.1038/s41377-025-01823-z.
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.
相干性保持波场之间的相位一致性，从而能够在全息术中进行精确记录和重建。尽管计算光学的最新进展已通过计算检索信息实现了使用非相干光进行全息数据采集，但光学重建仍需要部分相干光源。我们展示了一种利用非相干性重建三维分布的全息图。通过将非相干光分解为无穷小的相干光并计算它们的传播，对非相干和进行优化，使其类似于所需的三维场景，而各个相干光重建出的强度则完全不同。非相干性提供了高图像质量和宽视场光阑，重建强度在瞳孔位移下保持平移不变，使视场光阑扩大了1000倍。我们通过概念验证实验证实了平移不变性，并展示了使用神经网络实时合成非相干全息图，显著降低了计算成本。我们的方法可能会启发使用非相干光的光子学新方法，并实际应用于全息显示。
