Hu Chengyang, Du Zhenmin, Chen Minghua, Yang Sigang, Chen Hongwei
Opt Lett. 2019 Sep 1;44(17):4419-4422. doi: 10.1364/OL.44.004419.
Single-shot ultrafast photography is a powerful tool for science research and industry applications. In this Letter, a novel strategy for ultrafast imaging of two-dimensional complex (amplitude and phase) objects, which is termed single-shot ultrafast phase retrieval photography (SUP), is proposed and demonstrated. The key component of SUP is a silicon photonic integrated chip, which not only has the function of multi-angle illumination, but also provides ultra-short delays for each illumination source. Combined with an ultra-short pulse source and coherent diffraction imaging, SUP can realize ultrafast single-shot imaging. As a proof of concept, the self-developed multiplexed time delay illumination chip was used for experiments, and we demonstrated the reconstructing of a static complex-valued object with a frame sequence depth of 16 frames from single-shot ptychographic data.
单次超快摄影是科学研究和工业应用中的一种强大工具。在本信函中，提出并展示了一种用于二维复杂（幅度和相位）物体超快成像的新策略，称为单次超快相位恢复摄影（SUP）。SUP的关键组件是一个硅光子集成芯片，它不仅具有多角度照明功能，还为每个照明源提供超短延迟。结合超短脉冲源和相干衍射成像，SUP可以实现超快单次成像。作为概念验证，使用自行研发的多路复用时间延迟照明芯片进行实验，我们展示了从单次叠层衍射数据中重建具有16帧帧序列深度的静态复值物体。
