Integrated-resonant units(IRUs),associating various meta-atoms,resonant modes,and functionalities into one supercell,have been promising candidates for tailoring composite and multifunctional electromagnetic responses...Integrated-resonant units(IRUs),associating various meta-atoms,resonant modes,and functionalities into one supercell,have been promising candidates for tailoring composite and multifunctional electromagnetic responses with additional degrees of freedom.Integrated-resonant metadevices can overcome many bottlenecks in conventional optical devices,such as broadband achromatism,efficiency enhancement,response selectivity,and continuous tunability,offering great potential for performant and versatile application scenarios.We focus on the recent progress of integrated-resonant metadevices.Starting from the design principle of IRUs,a variety of IRU-based characteristics and subsequent practical applications,including achromatic imaging,light-field sensing,polarization detection,orbital angular momentum generation,metaholography,nanoprinting,color routing,and nonlinear generation,are introduced.Existing challenges in this field and opinions on future research directions are also provided.展开更多
Surface plasmons(SPs)are electromagnetic surface waves that propagate at the interface between a conductor and a dielectric.Due to their unique ability to concentrate light on two-dimensional platforms and produce ver...Surface plasmons(SPs)are electromagnetic surface waves that propagate at the interface between a conductor and a dielectric.Due to their unique ability to concentrate light on two-dimensional platforms and produce very high local-field intensity,SPs have rapidly fueled a variety of fundamental advances and practical applications.In parallel,the development of metamaterials and metasurfaces has rapidly revolutionized the design concepts of traditional optical devices,fostering the exciting field of meta-optics.This review focuses on recent progress of meta-optics inspired SP devices,which are implemented by the careful design of subwavelength structures and the arrangement of their spatial distributions.Devices of general interest,including coupling devices,on-chip tailoring devices,and decoupling devices,as well as nascent SP applications empowered by sophisticated usage of meta-optics,are introduced and discussed.展开更多
Metamaterials are composite materials whose material properties(acoustic, electrical, magnetic, or optical, etc.) are determined by their constitutive structural materials, especially the unit cells. The development o...Metamaterials are composite materials whose material properties(acoustic, electrical, magnetic, or optical, etc.) are determined by their constitutive structural materials, especially the unit cells. The development of metamaterials continues to redefine the boundaries of materials science. In the field of electromagnetic research and beyond, these materials offer excellent design flexibility with their customized properties and their tunability under external stimuli. In this paper, we first provide a literature review of metamaterials with a focus on the technology and its evolution. We then discuss steps in the industrialization process and share our own experience.展开更多
基金the University Grants Committee/Research Grants Council of the Hong Kong Special Administrative Region,China(Project No.AoE/P-502/20,CRF Project No.C5031-22GF,and GRF Project Nos.15303521 and 11310522)the Shenzhen Science and Technology Innovation Commission(Grant No.SGDX2019081623281169)+1 种基金the Department of Science and Technology of Guangdong Province(Grant No.2020B1515120073)the City University of Hong Kong(Project No.9380131).
文摘Integrated-resonant units(IRUs),associating various meta-atoms,resonant modes,and functionalities into one supercell,have been promising candidates for tailoring composite and multifunctional electromagnetic responses with additional degrees of freedom.Integrated-resonant metadevices can overcome many bottlenecks in conventional optical devices,such as broadband achromatism,efficiency enhancement,response selectivity,and continuous tunability,offering great potential for performant and versatile application scenarios.We focus on the recent progress of integrated-resonant metadevices.Starting from the design principle of IRUs,a variety of IRU-based characteristics and subsequent practical applications,including achromatic imaging,light-field sensing,polarization detection,orbital angular momentum generation,metaholography,nanoprinting,color routing,and nonlinear generation,are introduced.Existing challenges in this field and opinions on future research directions are also provided.
基金supported by the National Natural Science Foundation of China(Nos.62005193,62135008,62075158,62175180,61735012,61935015,and 62025504)the U.S.National Science Foundation(No.2114103).
文摘Surface plasmons(SPs)are electromagnetic surface waves that propagate at the interface between a conductor and a dielectric.Due to their unique ability to concentrate light on two-dimensional platforms and produce very high local-field intensity,SPs have rapidly fueled a variety of fundamental advances and practical applications.In parallel,the development of metamaterials and metasurfaces has rapidly revolutionized the design concepts of traditional optical devices,fostering the exciting field of meta-optics.This review focuses on recent progress of meta-optics inspired SP devices,which are implemented by the careful design of subwavelength structures and the arrangement of their spatial distributions.Devices of general interest,including coupling devices,on-chip tailoring devices,and decoupling devices,as well as nascent SP applications empowered by sophisticated usage of meta-optics,are introduced and discussed.
基金supported by Guangdong Innovative Research Team Program (2009010005)
文摘Metamaterials are composite materials whose material properties(acoustic, electrical, magnetic, or optical, etc.) are determined by their constitutive structural materials, especially the unit cells. The development of metamaterials continues to redefine the boundaries of materials science. In the field of electromagnetic research and beyond, these materials offer excellent design flexibility with their customized properties and their tunability under external stimuli. In this paper, we first provide a literature review of metamaterials with a focus on the technology and its evolution. We then discuss steps in the industrialization process and share our own experience.
