Coded self-referencing wavefront shaping for fast dynamic scattering control

作者：Zhengyang Wang, Daixuan Wu, Yuecheng Shen, Jiawei Luo, Jiajun Liang, Jiaming Liang, Zhiling Zhang, Dalong Qi, Yunhua Yao, Lianzhong Deng, Zhenrong Sun, Shian Zhang · 发表于：Advanced imaging. · 年份：2025 · DOI：10.3788/ai.2025.10024 · 被引用次数：6 · 研究领域：Random lasers and scattering media、Advanced Optical Imaging Technologies、Computer Graphics and Visualization Techniques

Wavefront shaping enables the transformation of disordered speckles into ordered optical foci through active modulation, offering a promising approach for optical imaging and information delivery.However, practical implementation faces significant challenges, particularly due to the dynamic variation of speckles over time, which necessitates the development of fast wavefront shaping systems.This study presents a coded self-referencing wavefront shaping system capable of fast wavefront measurement and control.By encoding both signal and reference lights within a single beam to probe complex media, this method addresses key limitations of previous approaches, such as interference noise in interferometric holography, loss of controllable elements in coaxial interferometry, and the computational burden of nonholographic phase retrieval.Experimentally, we demonstrated optical focusing through complex media, including unfixed multimode fibers and stacked ground glass diffusers.The system achieved runtime of 21.90 and 76.26 ms for 256 and 1024 controllable elements with full-field modulation, respectively, with corresponding average mode time of 85.54 and 74.47 s-pushing the system to its hardware limits.The system's robustness against dynamic scattering was further demonstrated by focusing light through moving diffusers with the correlation time as short as 21 ms.These results emphasize the potential of this system for real-time applications in optical imaging, communication, and s...