Single-shot ultrafast multiplexed coherent diffraction imaging  

作　　者：YINGMING XU XINGCHEN PAN MINGYING SUN WENFENG LIU CHENG LIU JIANQIANG ZHU 

机构地区：[1]Key Laboratory of High Power Laser and Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China [2]National Laboratory on High Power Laser and Physics,China Academy of Engineering Physics,Chinese Academy of Sciences,Shanghai 201800,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Photonics Research》2022年第8期1937-1946,共10页光子学研究（英文版）

基　　金：National Natural Science Foundation of China(11875308,6190031304,61975218);Scientific and Innovative Action Plan of Shanghai(19142202600);Strategic Priority Research Program of the Chinese Academy of Sciences(XDA25020202,XDA25020203);Youth Innovation Promotion Association of the Chinese Academy of Sciences(2018282)。

摘　　要：Classic interferometry was commonly adopted to realize ultrafast phase imaging using pulsed lasers;however, the reference beam required makes the optical structure of the imaging system very complex, and high temporal resolution was reached by sacrificing spatial resolution. This study presents a type of single-shot ultrafast multiplexed coherent diffraction imaging technique to realize ultrafast phase imaging with both high spatial and temporal resolutions using a simple optical setup, and temporal resolution of nanosecond to femtosecond scale can be realized using lasers of different pulse durations. This technique applies a multiplexed algorithm to avoid the data division in space domain or frequency domain and greatly improves the spatial resolution. The advantages of this proposed technique on both the simple optical structure and high image quality were demonstrated by imaging the generation and evaluating the laser-induced damage and accompanying phenomenon of laser filament and shock wave at a spatial resolution better than 6.96 μm and a temporal resolution better than 10 ns.

关 键 词：COHERENT RESOLUTION DIFFRACTION 

分 类 号：TN249[电子电信—物理电子学] O436.1[机械工程—光学工程]