Lensless efficient snapshot hyperspectral imaging using dynamic phase modulation

作     者：CHONG ZHANG XIANGLEI LIU LIZHI WANG SHINING MA YUANJIN ZHENG YUE LIU HUA HUANG YONGTIAN WANG WEITAO SONG CHONG ZHANG;XIANGLEI LIU;LIZHI WANG;SHINING MA;YUANJIN ZHENG;YUE LIU;HUA HUANG;YONGTIAN WANG;WEITAO SONG

作者机构：Beijing Engineering Research Center of Mixed Reality and Advanced DisplaySchool of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China Zhengzhou Research InstituteBeijing Institute of TechnologyZhengzhou 450000China State Key Laboratory of Radio Frequency Heterogeneous IntegrationCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China School of Computer Science and TechnologyBeijing Institute of TechnologyBeijing 100081China School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore 639798Singapore School of Artificial IntelligenceBeijing Normal UniversityBeijing 100875China 

出 版 物：《Photonics Research》 (光子学研究(英文版))

年 卷 期：2025年第13卷第2期

页      面：511-526页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Key Research and Development Program of China(2023YFB3611500) National Natural Science Foundation of China(62131003,62332003) A*STAR RIE2020 AME Programmatic Funding(A18A7b0058) 

主　　题：photolithography technology fabricated doe Efficient coded imaging diffractive optical element doe Snapshot Lensless deep opticsdespite 

摘      要：Snapshot hyperspectral imaging based on a diffractive optical element(DOE)is increasingly featured in recent progress in deep *** remarkable advances in spatial and spectral resolutions,the limitations of current photolithography technology have prevented the fabricated DOE from being designed at ideal heights and with high diffraction efficiency,diminishing the effectiveness of coded imaging and reconstruction accuracy in some ***,we propose,to our knowledge,a new lensless efficient snapshot hyperspectral imaging(LESHI)system that utilizes a liquid-crystal-on-silicon spatial light modulator(LCoS-SLM)to replace the traditionally fabricated DOE,resulting in high modulation levels and reconstruction *** the single-lens imaging model,the system can leverage the switch ability of LCoS-SLM to implement distributed diffractive optics(DDO)imaging and enhance diffraction efficiency across the full visible *** the proposed method,we develop a proof-of-concept prototype with an image resolution of 1920×1080 pixels,an effective spatial resolution of 41.74μm,and a spectral resolution of 10 nm,while improving the average diffraction efficiency from 0.75 to0.91 over the visible wavelength range(400-700 nm).Additionally,LESHI allows the focal length to be adjusted from 50 mm to 100 mm without the need for additional optical components,providing a cost-effective and timesaving solution for real-time on-site *** is the first imaging modality,to the best of our knowledge,to use dynamic diffractive optics and snapshot hyperspectral imaging,offering a completely new approach to computational spectral imaging and deep optics.