Single-pixel super-resolution with a space–time modulated computational metasurface imager  

作　　者：WENZHI LI JIARAN QI ANDREA ALU 

机构地区：[1]Department of Microwave Engineering,School of Electronics and Information Engineering,Harbin Institute of Technology,Harbin 150001,China [2]Photonics Initiative,Advanced Science Research Center,City University of New York,New York,New York 10031,USA [3]Physics Program,Graduate Center of the City University of New York,New York,New York 10016,USA

出　　处：《Photonics Research》2024年第10期2311-2322,共12页光子学研究（英文版）

基　　金：National Natural Science Foundation of China(61731007,62071152,62271170)。

摘　　要：Single-pixel imaging is a burgeoning computational imaging technique that utilizes a single detector devoid of spatial resolution to capture an image,offering great potential for creating cost-effective and simplified imaging systems.Nevertheless,achieving super-resolution with a single pixel remains a formidable challenge.Here,we introduce a single-pixel super-resolution imaging technique based on space–time modulation.The modulation parametrically mixes the incoming signals,enabling the space–time scattered signals of the object carrying finer details to be captured by the single-pixel imaging system.To validate our proposed technique,we designed and fabricated a computational metasurface imager that needs only a single transmitting port and a single receiving port.The achieved resolution surpasses the Abbe resolution limit.The principle of our proposed technique is well-suited for low-cost and compact imaging systems.

关 键 词：RESOLUTION utilize DETAILS 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]