Ultrafast quasi-three-dimensional imaging

作     者：Yiling Lian Lan Jiang Jingya Sun Jiadong Zhou Yao Zhou Yiling Lian;Lan Jiang;Jingya Sun;Jiadong Zhou;Yao Zhou

作者机构：Laser Micro/Nano Fabrication LaboratorySchool of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081People’s Republic of China Yangtze Delta Region Academy of Beijing Institute of TechnologyJiaxing 314019People’s Republic of China Beijing Institute of Technology Chongqing Innovation CenterChongqing 401120People’s Republic of China Centre for Quantum PhysicsKey Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(MOE)School of PhysicsBeijing Institute of TechnologyBeijing 100081People’s Republic of China Advanced Research Institute of Multidisciplinary SciencesBeijing Institute of TechnologyBeijing 100081People’s Republic of China 

出 版 物：《International Journal of Extreme Manufacturing》 (极端制造（英文）)

年 卷 期：2023年第5卷第4期

页      面：501-512页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. 

主　　题：ultrafast imaging extraction and reconstruction quasi-three-dimension plasma diffraction 

摘      要：Understanding laser induced ultrafast processes with complex three-dimensional(3D)geometries and extreme property evolution offers a unique opportunity to explore novel physical phenomena and to overcome the manufacturing limitations.Ultrafast imaging offers exceptional spatiotemporal resolution and thus has been considered an effective tool.However,in conventional single-view imaging techniques,3D information is projected on a two-dimensional plane,which leads to significant information loss that is detrimental to understanding the full ultrafast process.Here,we propose a quasi-3D imaging method to describe the ultrafast process and further analyze spatial asymmetries of laser induced plasma.Orthogonally polarized laser pulses are adopted to illuminate reflection-transmission views,and binarization techniques are employed to extract contours,forming the corresponding two-dimensional matrix.By rotating and multiplying the two-dimensional contour matrices obtained from the dual views,a quasi-3D image can be reconstructed.This successfully reveals dual-phase transition mechanisms and elucidates the diffraction phenomena occurring outside the plasma.Furthermore,the quasi-3D image confirms the spatial asymmetries of the picosecond plasma,which is difficult to achieve with two-dimensional images.Our findings demonstrate that quasi-3D imaging not only offers a more comprehensive understanding of plasma dynamics than previous imaging methods,but also has wide potential in revealing various complex ultrafast phenomena in related fields including strong-field physics,fluid dynamics,and cutting-edge manufacturing.