Single-pixel diffractive imaging via regularized complex-amplitude retrieval

• DOI: 10.1364/ol.553834
• Publication Date: 2025-01-27T14:01:12Z
• Authors: Guancheng Huang; Yong Shuai; Zhengjun Liu; Ziyang Li; Ziling Qiao; Qi Li; Zhengyu Wu; Shutian Liu; Yutong Li

For high-fidelity single-pixel complex-amplitude measurement, we implement robust and regularized wavefront separation by integrating multi-distance correlated reconstruction with constrained alternating projection retrievals. An adaptive dynamic weighting mechanism for group-wise wavefront updates further reinforces the stability and accuracy of imaging convergence. Additionally, a compressed phase retrieval driven by sparsity priors markedly optimizes efficiency by enabling wavefront reconstruction with single-frame diffraction. The proposed method allows flexible imaging with different-frame diffraction, promising it as a plug-and-play solution for high-fidelity single-pixel complex-field detection.