Abstract:
Synchrotron radiation light sources, leveraging their distinctive advantages of high brightness and high coherence, have achieved widespread applications in scientific research. Among various imaging methodologies, the integration of ptychography with synchrotron radiation has attracted significant attention. Ptychography employs a point-by-point overlapping scanning strategy to collect diffraction patterns from specimens and iteratively reconstructs the complex amplitude distribution of samples through redundant information utilization. With continuous advancements in optical imaging components and expanding application scenarios, numerous rapid ptychographic imaging methods have emerged in both scanning-recording processes and reconstruction algorithms. This paper systematically reviews the progress of the High Energy Photon Source (HEPS) and elucidates the fundamental principles of ptychography. Furthermore, it highlights recent advances in rapid ptychographic imaging techniques at synchrotron facilities through three key areas: fly-scanning techniques, multi-beam scanning strategies, and deep learning-based reconstruction algorithms.