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Mid-infrared chemical imaging of living cells enabled by plasmonic metasurfaces 认领 引用
1
作者 Steven H.Huang Po-Ting Shen +4 位作者 Aditya Mahalanabish Giovanni Sartorello Jenny Li Xuefeng Liu Gennady Shvets 《Advanced Photonics Nexus》 CSCD 2026年第3期148-159,共12页
Mid-infrared(MIR)chemical imaging provides rich chemical information of biological samples in a label-free and nondestructive manner.Yet,its adoption for live-cell analysis is limited by the strong attenuation of MIR ... Mid-infrared(MIR)chemical imaging provides rich chemical information of biological samples in a label-free and nondestructive manner.Yet,its adoption for live-cell analysis is limited by the strong attenuation of MIR light in water,often necessitating cell culture geometries that are incompatible with the prolonged viability of cells.Here,we introduce a new approach to MIR microscopy,where cells are imaged through their localized near-field interaction with a plasmonic metasurface.Chemical contrast of distinct molecular groups provided sub-cellular resolution images of the proteins,lipids,and nucleic acids in the cells that were collected using an inverted MIR microscope.Time-lapse imaging of living cells demonstrated that their behaviors,including motility,viability,and substrate adhesion,can be monitored over extended periods of time using low-power MIR light.The presented approach provides a method for the nonperturbative MIR imaging of living cells,which is well-suited for integration with modern high-throughput screening technologies for the label-free,high-content chemical imaging of living cells. 展开更多
关键词 infrared microscopy vibrational microscopy metasurfaces plasmonics surface-enhanced infrared absorption
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High-efficiency infrared upconversion imaging with nonlinear silicon metasurfaces empowered by quasi-bound states in the continuum 认领 引用
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作者 Tingting Liu Jumin Qiu +6 位作者 Meibao Qin Xu Tu Huifu Qiu Feng Wu Tianbao Yu Qiegen Liu Shuyuan Xiao 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2026年第4期75-85,共11页
Infrared imaging is indispensable for its ability to penetrate obscurants and visualize thermal signatures,yet its practical use is hindered by the intrinsic limitations of conventional detectors.Nonlinear upconversio... Infrared imaging is indispensable for its ability to penetrate obscurants and visualize thermal signatures,yet its practical use is hindered by the intrinsic limitations of conventional detectors.Nonlinear upconversion,which converts infrared light into the visible band,offers a promising pathway to address these challenges.Here,we demonstrate high-efficiency infrared upconversion imaging using nonlinear silicon metasurfaces.By strategically breaking in-plane symmetry,the metasurface supports a high-Q quasi-bound states in the continuum resonance,leading to strongly enhanced third-harmonic generation(THG)with a conversion efficiency of 3×10-5 at a pump intensity of 10 GW/cm2.Through this THG process,the metasurface enables high-fidelity upconversion of arbitrary infrared images into the visible range,achieving a spatial resolution of~6μm as verified using a resolution target and various customized patterns.This work establishes a robust platform for efficient nonlinear conversion and imaging,highlighting the potential of CMOS-compatible silicon metasurfaces for high-performance infrared sensing applications with reduced system complexity. 展开更多
关键词 infrared upconversion imaging nonlinear metasurfaces bound states in the continuum third-harmonic generation
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Pixelated BIC metasurfaces for terahertz integrated sensing and imaging 认领 引用
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作者 Zhanqiang Xue Guizhen Xu +4 位作者 Junliang Chen Junxing Fan Hongyang Xing Ye Zhou Longqing Cong 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2026年第3期81-92,共12页
Conventional terahertz(THz)single-pixel imaging relies on a sequential process involving compressed sensing,which requires a spatial modulator and is often time-intensive.Here,we propose a new THz single-pixel imaging... Conventional terahertz(THz)single-pixel imaging relies on a sequential process involving compressed sensing,which requires a spatial modulator and is often time-intensive.Here,we propose a new THz single-pixel imaging scheme operating in a parallelized fashion with a pixelated metasurface,demonstrated within a standard THz timedomain spectroscopy system.This approach encodes spatial information through multiple narrow linewidth resonances based on bound states in the continuum(BIC)physics,and the BIC-enabled pixelated metasurface facilitates the near-field distributed sensing through local field enhancement.We validate this integrated imaging and sensing capability using a 2×2 metasurface array in a proof-of-concept experiment,with scalability to larger arrays.The approach achieves 100%accuracy in binary imaging reconstruction from a single THz pulse and enables refractive index sensing with a sensitivity higher than 14.39 GHz/RIU.Leveraging the intrinsic penetration capability of THz radiation,this technique offers significant promise for next-generation noninvasive applications such as security inspection and defect detection in semiconductor chips and pharmaceutical products. 展开更多
关键词 bound states in the continuum pixelated metasurfaces terahertz photonics integrated imaging and sensing
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Tunable multi-frequency exceptional points in non-Hermitian terahertz metasurfaces 认领 引用
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作者 Xiang Hou Fangze Deng +10 位作者 Zhihua Han Yumeng Ma Chenglong Wang Yuchao Li Keke Cheng Ke Ma Yansheng Shao Ruidan Zhou Yuping Zhang Meng Liu Huiyun Zhang 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第5期623-634,共12页
Exceptional points(EPs)in non-Hermitian metasurfaces have garnered considerable attention due to their unique advantages in cutting-edge applications such as ultra-sensitive sensing and unidirectional reflectionlessne... Exceptional points(EPs)in non-Hermitian metasurfaces have garnered considerable attention due to their unique advantages in cutting-edge applications such as ultra-sensitive sensing and unidirectional reflectionlessness.However,existing studies on metasurfaces employing both active and passive tuning mechanisms can only observe a single EP,which fails to meet the requirements for multi-frequency responses or multifunctional integration,thus limiting the enhancement of device performance.In this study,we design a terahertz(THz)non-Hermitian metasurface device that is actively tuned by the phase-change material VO2.By keeping the geometric dimensions of the device unchanged,we achieve the simultaneous induction and detection of multi-frequency EPs at multiple frequency points.Through the regulation of VO2conductivity,the gain-loss distribution of the system can be continuously controlled,leading to the degeneracy of eigenvalues and eigenstates across multiple discrete frequency bands,thereby forming multi-frequency EPs.Furthermore,the design of chiral structures demonstrates that,under identical conductivity conditions,the eigenstates of the original metasurface structure and its chiral counterpart can degenerate into circularly polarized states with opposite rotations,enabling the switching of polarization chirality.These results illustrate that the deep integration of phase-change materials,non-Hermitian photonics,and electromagnetic manipulation in metasurfaces provides a novel design paradigm for the dynamic regulation of multi-frequency EPs and circular polarization control,laying a foundation for the development of high-performance and multifunctional integrated photonic platforms in the THz regime. 展开更多
关键词 exceptional points terahertz non-Hermitian metasurfaces
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Brillouin zone folding-driven multi-QBIC metasurfaces for enhanced trace analyte identification 认领 引用
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作者 WENSHUO CHEN YUE WANG +7 位作者 GUANGCHENG SUN GENGYU BAI RUI WU ZIJIAN CUI XIAOGUANG ZHAO SUGUO CHEN QIN ZHANG SUNCHAO HUANG 《Photonics Research》 SCIE EI CAS CSCD 2026年第5期2252-2262,共11页
The high Q factors and local field enhancement effect of bound states in the continuum(BIC)resonances offer significant potential for detecting trace substances.However,conventional BIC-based metasurface sensors suffe... The high Q factors and local field enhancement effect of bound states in the continuum(BIC)resonances offer significant potential for detecting trace substances.However,conventional BIC-based metasurface sensors suffer from material loss-induced low Q factors,limited field enhancement,and the constraint of a single resonance mode on the metasurface.Here,a Brillouin-zone-folding-driven metasurface supporting multiple quasi-BIC(QBIC)resonances is introduced to improve the detection performance of trace analytes. 展开更多
关键词 detecting trace substanceshoweverconventional metasurface sensors Brillouin zone folding trace analyte identification high Q factors trace analytes multi QBIC metasurfaces local field enhancement
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Wireless-optical switching and communication based on metasurfaces:From multi-parameter regulation to potential applications 认领 引用
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作者 Weijie Qiu Weigang Hou +4 位作者 Jiahao Zhou Xiaoxue Gong Xiangyu He Lei Guo Pengxing Guo 《Digital Communications and Networks》 SCIE EI CSCD 2026年第4期649-661,共13页
This review provides a comprehensive survey of the most recent developments in metasurfaces for applications in domains including wireless-optical switching and communications.In particular,we focus on discussion of m... This review provides a comprehensive survey of the most recent developments in metasurfaces for applications in domains including wireless-optical switching and communications.In particular,we focus on discussion of multiparameter optical field regulation and potential applications in system performance enhancement.By designing nanostructured arrays with specific geometries,metasurfaces can be used to effectively manipulate parameters including phase,amplitude,and polarization,thereby enabling the switching,transmission,testing,analysis,and processing of optical signals.Notably,the introduction of phase-change materials offers a novel approach that allows metasurfaces to achieve more flexible wireless-optical switching at higher speeds.In wireless-optical communication systems,multiplexing of the different degrees of freedom of the light beams can improve the data transmission capacity and rate significantly.Finally,we present our own metasurface design with its unique passive parallel beam splitting capacity,and we demonstrate the superiority of this design in applications including wireless-optical inter-rack connections in data centers and industrial inspection based on optical crossconnectors. 展开更多
关键词 Optical metasurfaces Multi-parameter optical field regulation Wireless-optical switching Wireless-optical communication
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Multi-degree-of-freedom multiport beam splitting on nonlocal metasurfaces:preparation of four-mode high-NOON states 认领 引用
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作者 Yu Tian Qi Liu +3 位作者 Zhaohua Tian Shuyun Su Qihuang Gong Ying Gu 《Advanced Photonics Nexus》 CSCD 2026年第3期128-138,共11页
Local gradient metasurfaces have realized multiple beam splitting(BS)functions,enabling various applications in on-chip quantum information.However,nonlocal metasurface BS with the utilization of wavelength and moment... Local gradient metasurfaces have realized multiple beam splitting(BS)functions,enabling various applications in on-chip quantum information.However,nonlocal metasurface BS with the utilization of wavelength and momentum selectivity remains unexplored.Here,we demonstrate the framework of a multidegree-of-freedom multiport BS on a single nonlocal phase gradient metasurface.The BS,constructed by its momentum-polarization mode subspaces,is co-modulated by wavelengths,polarization,and angles of incident light.With the unique capability of multimode interference,this multiport BS can facilitate quantum state engineering,especially multimode high-dimensional quantum entanglement.Then,four-mode highphoton NOON states,manifested as polarization-path-locked properties,are prepared with high success probability and fidelity.For example,four-photon and eight-photon NOON states are obtained with success probabilities of 33.7%and 12.5%,respectively.The efficient generation of multimode high-photon NOON states on a single metasurface improves the precision of on-chip quantum measurement and significantly enhances the integration of quantum information platforms. 展开更多
关键词 nonlocal metasurfaces multiport beam splitting multi-degrees of freedom multimode NOON states
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Illusion Optics via Phase-Gradient Metasurfaces 认领 引用
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作者 Zhaoyao Pan Jinpeng Yang Yadong Xu 《Chinese Physics Letters》 SCIE EI CAS CSCD 2026年第1期31-36,共6页
Optical phase-gradient metasurfaces have garnered significant attention for enabling flexible light manipulation,with applications across diverse domains.In this work,we will demonstrate that the metasurfaces with pha... Optical phase-gradient metasurfaces have garnered significant attention for enabling flexible light manipulation,with applications across diverse domains.In this work,we will demonstrate that the metasurfaces with phase gradient modulation can be used to achieve illusion optics,featuring the advantages of simple geometric structure and feasible implementation compared with the well-known transformation optics method.The underlying mechanism is the anomalous diffraction law caused by the phase gradient,which provides a theoretical basis for freely manipulating the propagation path of light.By considering a specific example,we will demonstrate that the phase gradient can transform spatial coordinates in real space into illusion space,thereby converting a plane in real space into a curved surface structure in illusion space to achieve the illusion effect.This approach provides a viable alternative to transformation optics for designing illusion devices. 展开更多
关键词 transformation optics anomalous diffraction law illusion opticsfeaturing flexible light manipulationwith illusion optics anomalous diffraction phase gradient modulation phase gradient metasurfaces
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Continuous three-dimensional varifocal of vortex beams with twisted metasurfaces 认领 引用
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作者 Yiyi Li Wangzhe Zhou +7 位作者 Shaoqi Li Xiaoyan Huang Fen Zhao Man Yuan Jiagui Wu Huan Chen Zhaojian Zhang Junbo Yang 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第3期351-361,共11页
Vortex beams with helical phase wavefronts and doughnut-shaped intensity profiles hold great promise for optical trapping,imaging,and quantum communication.However,dynamic control over their steering and focusing rema... Vortex beams with helical phase wavefronts and doughnut-shaped intensity profiles hold great promise for optical trapping,imaging,and quantum communication.However,dynamic control over their steering and focusing remains challenging with existing static generation methods.Here,we demonstrate a dynamic and compact moirémetasurfaces that enables full three-dimensional(3D)control over vortex beams.The paradigm incorporates a numerical unit cell model and an off-axis angular spectrum algorithm based on the generalized Snell's law of refraction in full space.The beam's transverse position and longitudinal focal length can be simultaneously controlled by integrating phase elements such as gratings,lenses,and spiral phase plates.This scheme offers a 12×large axial zoom range from 7.42 mm to 85.45 mm and a lateral steering capability of up to±48 mm.The device exhibits an average side-mode suppression ratio of 27.3 and maintains a constant full width at half maximum over a 50°deflection range,preserving beam quality and directional stability during dynamic steering.This lightweight vortex beams solution may open new ways for dynamic beam shaping in super-resolution imaging,free-space communication,and biophotonics. 展开更多
关键词 vortex beams light manipulation tunable metasurfaces moire theory
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Metasurfaces forge new paths in quantum spaces 认领 引用
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作者 Pashlene Naidoo Andrew Forbes 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2026年第6期1-3,共3页
quantum space built from the Bloch sphere of a locally entangled photon,while shaping the path using its non-local entangled partner as a control.The steering and directing along these new paths is enabled by cascaded... quantum space built from the Bloch sphere of a locally entangled photon,while shaping the path using its non-local entangled partner as a control.The steering and directing along these new paths is enabled by cascaded metasurfaces,demonstrating the myriad of possibilities that emerge when structured matter meets quantum structured light. 展开更多
关键词 structured light quantum structured light metasurfaces entanglement
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Time-domain mode retrieval of ultrafast dynamics in dielectric metasurfaces with quasi-BIC resonances 认领 引用
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作者 Hao Wu Andrey E.Miroshnichenko 《Advanced Photonics Nexus》 CSCD 2026年第5期236-243,共8页
Dielectric metasurfaces and other resonant nanophotonic systems have transformed light–matter interactions by providing exact control over electromagnetic fields.Despite the fact that these systems frequently span mu... Dielectric metasurfaces and other resonant nanophotonic systems have transformed light–matter interactions by providing exact control over electromagnetic fields.Despite the fact that these systems frequently span multiple coupling regimes and may thus exhibit rich intrinsic temporal dynamics,characterizing them has primarily relied on steady-state frequency-domain analysis.To close this gap,we present a thorough time-domain mode-retrieval framework.The decoupling of resonant modes from the background continuum is made possible by systematically extracting the complex resonant poles of a nanophotonic system directly from its transient response using the vector fitting technique and the Prony method.Specifically,we investigate resonances supported by a silicon metasurface that are quasi-bound states in the continuum(quasi-BICs).This method effectively separates radiative quasi-BIC modes and identifies their fundamental properties,such as the Q-factors.In addition,our approach uncovers a clear temporal beating behavior associated with transient mode interference that is not visible in steady-state spectral measurements.Lastly,this method is expanded to the nonlinear regime to see the third-harmonic generation signal’s temporal evolution.Our results open up possibilities for ultrafast all-optical devices with customized temporal dynamics by establishing a potent semi-analytical tool for time-resolved investigations of ultrafast dynamics in resonant nanophotonic systems. 展开更多
关键词 temporal dynamics quasi-bound states in the continuum dielectric metasurfaces time-domain mode retrieval
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Tunable terahertz chiral response in all-dielectric BIC metasurfaces 认领 引用
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作者 YANG Yue YAO Bu-yi +9 位作者 DAI Hai-tao HAO Xi-chen WANG Yu-han WANG Ruo-tong GUO Ting-yang DU Wen GAO Ming TAN Qi LI Ji-ning YAO Jian-quan 《中国光学（中英文）》 EI CAS CSCD 北大核心 2026年第4期1026-1034,共9页
Chiral metasurfaces play critical role in physics,materials science,pharmacognosy,and communications.To achieve high-performance chiral responses,such as high circular dichroism(CD)and highquality factors(Q-factors),b... Chiral metasurfaces play critical role in physics,materials science,pharmacognosy,and communications.To achieve high-performance chiral responses,such as high circular dichroism(CD)and highquality factors(Q-factors),bound-state-in continuum(BIC),BIC-based metasurfaces have been extensively studied as a promising platform.However,most realized BIC metasurfaces rely on metallic constituents whose high electromagnetic losses and absence of dynamic chirality tuning together impose a severe limit on their practical potential.This paper presents an all-dielectric chiral BIC metasurface.By illumination symmetry breaking,the metasurface exhibits a CD value of 0.93.Additionally,dynamic tuning of CD is enabled by external optical pumping.This scheme provides a new avenue for dynamically manipulating the chiral metasurface,which can be used to achieve more complex dynamic chiral characterization and applications. 展开更多
关键词 all-dielectric metasurface circular dichroism dynamic control terahertz
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Fundamental and emerging applications of metasurfaces in laser optics:an overview 认领 引用
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作者 Tao He Xiaofeng Rao +7 位作者 Chao Feng Chengfeng Li Jingyao Zhang Junming Fan Zeyong Wei Yuzhi Shi Zhanshan Wang Xinbin Cheng 《Photonics Insights》 2026年第2期52-93,共42页
.Over the past 15 years,metasurfaces have emerged as a prominent research focus in nanophotonics.They offer remarkable capabilities for controlling light by tailoring its fundamental properties,such as phase,amplitude... .Over the past 15 years,metasurfaces have emerged as a prominent research focus in nanophotonics.They offer remarkable capabilities for controlling light by tailoring its fundamental properties,such as phase,amplitude,and polarization,at subwavelength scales in both pixel size and thickness.At the same time,due to the excellent monochromaticity,coherence,and high-power performance,lasers have become an indispensable part of various disciplines.A significant amount of research has explored the application of metasurfaces in various laser systems.However,the nanophotonics community currently lacks a comprehensive review that both summarizes these achievements and outlines future research directions.This review provides an overview of the latest advancements in metasurfaces for laser systems,including their underlying physical mechanisms and applications in both passive and active laser systems.Here,“active systems”refers to the metasurfaces integrated within the gain medium.Finally,we conclude with a perspective on prospective developments in metasurfaces for laser systems. 展开更多
关键词 metasurface passive metasurface active metasurface high-performance meta-device nanophotonics
Discrete Ultra-Broadband Perfect Anomalous Reflection in Depth Gradient Metasurfaces 认领 引用
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作者 Siyu Gu Cong Wang +5 位作者 Ziying Gao Lei Gao Drolgar Feng Gao Shaojun Wang Yadong Xu 《Chinese Physics Letters》 SCIE EI CAS CSCD 2025年第9期28-33,共6页
Perfect anomalous reflections have been demonstrated in optical phase gradient metasurfaces(PGMs),but they suffer from single-frequency(narrow-band)response due to the intrinsic limitation of natural geometric periodi... Perfect anomalous reflections have been demonstrated in optical phase gradient metasurfaces(PGMs),but they suffer from single-frequency(narrow-band)response due to the intrinsic limitation of natural geometric periodicity.Here,we provide both numerical and analytical evidence that a depth gradient metasurface can achieve discrete ultra-broadband perfect anomalous reflection in the microwave range in the absence of geometric periodicity.Remarkably,by adjusting the operating frequency of the incident wave,the same effect can be steadily obtained via a physically equivalent phase periodicity in the PGM.Based on this mechanism,a perfect retroreflector with a broadband response ranging from 1 GHz to 40 GHz is realized.Our work has promising applications in communication,source tracking,and military satellites. 展开更多
关键词 phase gradient metasurfaces pgms discrete ultra broadband perfect anomalous reflection depth gradient metasurfaces optical phase gradient metasurfaces geometric periodicity adjusting operating frequency perfect anomalous reflections microwave range
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Open thermal cloak based on active thermal metasurfaces 认领 引用
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作者 Bao-Quan Hou Fei Sun +5 位作者 Yi-Chao Liu Jia-Peng Wang Ya-Ru Feng Bin-Zhao Cao Hong-Ming Fei Jie Wu 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第5期504-510,共7页
The enclosed configuration of conventional thermal cloaks prevents the passage of matter across their boundaries.To overcome this limitation,we propose an open thermal cloak(OTC)that simultaneously provides effective ... The enclosed configuration of conventional thermal cloaks prevents the passage of matter across their boundaries.To overcome this limitation,we propose an open thermal cloak(OTC)that simultaneously provides effective thermal cloaking and incorporates a functional exit that allows unimpeded passage and exchange of matter.The OTC integrates a closed thermal cloak with an exit(CTCE)and a thermal shifter designed via coordinate transformation.The thermal shifter compensates for performance degradation caused by the exit by transferring the thermal regulation function of the removed segment back to the exit location,using a material with equivalent negative thermal conductivity derived from transformation thermotics.For practical implementation,this idealized material is replaced with discrete active thermal metasurfaces(ATMs)at the boundary to replicate the required heat flux conditions.Numerical simulations show that the ATM-based OTC exhibits excellent cloaking performance under varying heat flow directions and across exits of different sizes and shapes,maintaining background temperature field integrity and a near-uniform temperature distribution inside the protected region.The average temperature disturbance induced is significantly lower than that of CTCE and a directly exposed object,with performance approaching that of an ideal closed thermal cloak(CTC).This work breaks the enclosure limitation of traditional thermal cloaks and shows promise for infrared thermal protection of underground shelters and the thermal management of heat-sensitive electronics. 展开更多
关键词 thermal cloaking thermal metasurface transformation thermotics open cloak active metasurface
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Conformal diffusion acoustic metasurfaces with soft materials for scattering reduction 认领 引用
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作者 Kunhong Li Wenkang Cao +3 位作者 Qiao Huang Jinsong Ye Kaiping Nie Jie Hu 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第6期773-780,共8页
Planar diffusion acoustic metasurfaces(PDAMs)with rigid materials have attracted much attention due to their ability to redistribute acoustic energy in various directions and to realize acoustic stealth.In this paper,... Planar diffusion acoustic metasurfaces(PDAMs)with rigid materials have attracted much attention due to their ability to redistribute acoustic energy in various directions and to realize acoustic stealth.In this paper,to enhance the adaptability of PDAMs to complex curved surfaces,a conformal diffusion acoustic metasurface(CDAM)with soft materials is proposed to manipulate scattering features,leading to considerable scattering reduction in the specular direction.To realize the proposed CDAM,eight kinds of meta-atoms with phase differences of 45°are introduced.Polydimethylsiloxane(PDMS)is chosen as the material of meta-atoms,which not only has a low modulus but also possesses the ability to deform compliantly with environmental conditions.The simulated results demonstrate that the proposed CDAM can achieve backward scattering reduction of at least 9 dB with bending angles of the CDAM from 0°to 90°,and has potential applications in noise control,acoustic stealth,architectural acoustics,and other relevant applications. 展开更多
关键词 conformal diffusion acoustic metasurface scattering reduction soft materials coding metasurface
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Cascaded metasurfaces for adaptive aberration correction 认领 引用
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作者 Lei Zhang Tie Jun Cui 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2025年第5期1-3,共3页
Aberration-corrected focus scanning is crucial for high-precision optics,but the conventional optical systems rely on bulky and complicated dynamic correctors.Recently,Shiyi Xiao's group proposed a method using tw... Aberration-corrected focus scanning is crucial for high-precision optics,but the conventional optical systems rely on bulky and complicated dynamic correctors.Recently,Shiyi Xiao's group proposed a method using two rotating cascaded transmissive metasurfaces for adaptive aberration correction in focus scanning.The optimized phase profiles enable precise control of the focal position for scanning custom-curved surfaces.This concept was experimentally validated by two allsilicon meta-devices in the terahertz regime,paving the way for high-precision and compact optical devices in various applications. 展开更多
关键词 precise control focal position optimized phase profiles rotating cascaded transmissive metasurfaces focus scanningthe adaptive aberration correction dynamic correctorsrecentlyshiyi terahertz reg cascaded metasurfaces
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AI-enabled electromagnetic metasurfaces for wireless communication and invisibility cloak 认领 引用
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作者 Fan Zhang Jiwei Zhao +4 位作者 Huan Lu Guixi Mei Ruikai Hu Bin Zheng Hongsheng Chen 《Opto-Electronic Technology》 2026年第2期1-30,I0001,I0002,共30页
Programmable metasurfaces have evolved into dynamic electromagnetic(EM)interfaces capable of manipulating wavefronts across spatial,temporal,spectral,and information domains.This review summarizes recent advances in p... Programmable metasurfaces have evolved into dynamic electromagnetic(EM)interfaces capable of manipulating wavefronts across spatial,temporal,spectral,and information domains.This review summarizes recent advances in programmable metasurfaces and their integration with artificial intelligence(AI).We first introduce the fundamental coding mechanisms,including spatial coding,temporal modulation,and space-time coding(STC),which provide the physical basis for multidimensional EM control.We then review AI-enabled methodologies for metasurfaces,covering inverse design,large-scale and STC metasurface synthesis,and closed-loop systems integrating sensing,learning,and real-time EM control.Representative system-level applications are discussed in two directions.For wireless communication,programmable metasurfaces enable radio-environment orchestration,direct information modulation,and integrated sensing and communication.For stealth-oriented applications,they support AI-assisted cloaking design,adaptive invisibility,and EM signature regulation,including Doppler-signature manipulation.Finally,we discuss key challenges in data efficiency,physical consistency,experimental validation,hardware scalability,energy consumption,and closed-loop deployment.This review presents programmable metasurfaces as a unifying platform concept for intelligent EM systems,while recognizing that current system-level demonstrations remain more mature in the microwave and millimeter-wave regimes. 展开更多
关键词 programmable metasurface space-time coding artificial intelligence wireless communication invisibility cloak
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On-chip light control of semiconductor optoelectronic devices using integrated metasurfaces 认领 引用 被引量：8
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作者 Cheng-Long Zheng Pei-Nan Ni +1 位作者 Yi-Yang Xie Patrice Genevet 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2025年第1期5-30,共26页
Semiconductor optoelectronics devices,capable of converting electrical power into light or conversely light into electrical power in a compact and highly efficient manner represent one of the most advanced technologie... Semiconductor optoelectronics devices,capable of converting electrical power into light or conversely light into electrical power in a compact and highly efficient manner represent one of the most advanced technologies ever developed,which has profoundly reshaped the modern life with a wide range of applications.In recent decades,semiconductor technology has rapidly evolved from first-generation narrow bandgap materials(Si,Ge)to the latest fourth-generation ultra-wide bandgap semiconductor(GaO,diamond,AlN)with enhanced performance to meet growing demands.Additionally,merging semiconductor devices with other techniques,such as computer assisted design,state-of-the-art microano fabrications,novel epitaxial growth,have significantly accelerated the development of semiconductor optoelectronics devices.Among them,integrating metasurfaces with semiconductor optoelectronic devices have opened new frontiers for on-chip control of their electromagnetic response,providing access to previously inaccessible degrees of freedom.We review the recent advances in on-chip control of a variety of semiconductor optoelectronic devices using integrated metasurfaces,including semiconductor lasers,semiconductor light emitting devices,semiconductor photodetectors,and low dimensional semiconductors.The integration of metasurfaces with semiconductors offers wafer-level ultracompact solutions for manipulating the functionalities of semiconductor devices,while also providing a practical platform for implementing cuttingedge metasurface technology in real-world applications. 展开更多
关键词 optoelectronics nanophotonics metasurfaces semiconductor
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Review of progress in microwave electromagnetic stealth metasurfaces 认领 引用
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作者 Jianing YANG Yao LI +3 位作者 Da YI Mei LI Yijia HUANG Ming-Chun TANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2025年第11期235-257,共23页
Metasurfaces,which are two-dimensional arrays of subwavelength elements,enable versatile control of electromagnetic waves,thereby paving the way for advancements in electromagnetic stealth.Electromagnetic stealth aims... Metasurfaces,which are two-dimensional arrays of subwavelength elements,enable versatile control of electromagnetic waves,thereby paving the way for advancements in electromagnetic stealth.Electromagnetic stealth aims to diminish object visibility to radar or other sensors by minimizing their reflection,scattering,or emission of electromagnetic waves.This paper reviews the latest works in microwave electromagnetic stealth devices utilizing metasurfaces,including absorbing,scattering,cloaking and multifunctional stealth techniques.A comprehensive analysis and characterization of these stealth metasurface based devices are presented,focusing on their working principles,performance characteristics,and the associated challenges.Additionally,we explore prospects and opportunities for further research.This paper offers a thorough and upto-date survey of the current status and future directions of this emerging field. 展开更多
关键词 Absorber Cloak Diffusion Metasurfaces RCS reduction Stealth
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