典型文献
Ultracompact meta-imagers for arbitrary all-optical convolution
文献摘要：
Electronic digital convolutions could extract key features of objects for data processing and information identification in artificial intelligence,but they are time-cost and energy consumption due to the low response of electrons.Although massless photons enable high-speed and low-loss analog convolutions,two existing all-optical approaches including Fourier filtering and Green's function have either limited functionality or bulky volume,thus restricting their applications in smart systems.Here,we report all-optical convolutional computing with a metasurface-singlet or-doublet imager,considered as the third approach,where its point spread function is modified arbitrarily via a complex-amplitude meta-modulator that enables functionality-unlimited kernels.Beyond one-and two-dimensional spatial differentiation,we demonstrate real-time,parallel,and analog convolutional processing of optical and biological specimens with challenging pepper-salt denoising and edge enhancement,which significantly enrich the toolkit of all-optical computing.Such meta-imager approach bridges multi-functionality and high-integration in all-optical convolutions,meanwhile possessing good architecture compatibility with digital convolutional neural networks.
文献关键词：
中图分类号：
作者姓名：
Weiwei Fu;Dong Zhao;Ziqin Li;Songde Liu;Chao Tian;Kun Huang
作者机构：
Department of Optics and Optical Engineering,University of Science and Technology of China,Hefei,Anhui 230026,China;Institute of Artificial Intelligence,Hefei Comprehensive National Science Center,Hefei,Anhui 230088,China;Department of Precision Machinery and Precision Instrumentation,University of Science and Technology of China,Hefei,Anhui 230026,China
文献出处：
引用格式：
[1]Weiwei Fu;Dong Zhao;Ziqin Li;Songde Liu;Chao Tian;Kun Huang-.Ultracompact meta-imagers for arbitrary all-optical convolution)[J].光：科学与应用（英文版）,2022(04):595-607
A类：
Ultracompact,massless
B类：
imagers,arbitrary,optical,Electronic,digital,convolutions,could,extract,key,features,objects,data,processing,information,identification,artificial,intelligence,but,they,are,cost,energy,consumption,due,low,response,electrons,Although,photons,high,speed,loss,analog,existing,approaches,including,Fourier,filtering,Green,have,either,functionality,bulky,volume,thus,restricting,their,applications,smart,systems,Here,we,report,convolutional,computing,metasurface,singlet,doublet,considered,third,where,its,point,spread,modified,arbitrarily,via,complex,amplitude,modulator,that,enables,unlimited,kernels,Beyond,one,dimensional,spatial,differentiation,demonstrate,real,parallel,biological,specimens,challenging,pepper,salt,denoising,edge,enhancement,which,significantly,enrich,toolkit,Such,bridges,multi,integration,meanwhile,possessing,good,architecture,compatibility,neural,networks
AB值：
0.662607
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
