首页期刊导航|光：科学与应用（英文版）
期刊信息/Journal information
光：科学与应用（英文版）
中国科学院长春光学精密机械与物理研究所
光：科学与应用（英文版）

中国科学院长春光学精密机械与物理研究所

双月

2095-5545

light_lsa@ciomp.ac.cn

0431-86176851

130033

吉林省长春市东南湖大路3888号 中国科学院长春光学精密机械与物理研究所

光：科学与应用（英文版）/Journal Light：Science & ApplicationsCSCDCSTPCD北大核心EISCI
查看更多>>《Light: Science & Applications》（《光：科学与应用》）是由中国科学院长春光学精密机械与物理研究所与中国光学学会共同主办，与自然出版集团（现更名为Springer Nature）合作出版的全英文开放获取（OA）国际学术期刊。该刊于2012年3月29日创刊，2013年10月先后被国际著名检索系统SCI及全球最大文摘引文数据库Scopus收录，最新影响引子14.098，连续3年位于SCI收录的光学期刊影响因子榜前3位。该刊是自然出版集团在中国出版的第一本OA物理类期刊，致力于推动全球范围内的光学研究，刊载光学领域基础、应用基础以及工程技术研究及应用方面的高水平的最新研究成果，包括小尺度光学、特种光学、光学材料及处理、光学元件制备、光学数据传输、光学测量、光学在生命科学及环境科学等领域的应用等方面的高质量、高影响力的原创性学术论文、News & Views、快报、展望和综述文章。
正式出版
收录年代

    Arbitrarily rotating polarization direction and manipulating phases in linear and nonlinear ways using programmable metasurface

    Wei LiuSi Ran WangJun Yan DaiLei Zhang...
    1789-1800页
    查看更多>>摘要：Independent controls of various properties of electromagnetic(EM)waves are crucially required in a wide range of applications.Programmable metasurface is a promising candidate to provide an advanced platform for manipulating EM waves.Here,we propose an approach that can arbitrarily control the polarization direction and phases of reflected waves in linear and nonlinear ways using a stacked programmable metasurface.Further,we extend the space-time-coding theory to incorporate the dimension of polarization,which provides an extra degree of freedom for manipulating EM waves.As proof-of-principle application examples,we consider polarization rotation,phase manipulation,and beam steering at linear and nonlinear frequencies.For validation,we design,fabricate,and measure a metasurface sample.The experimental results show good agreement with theoretical predictions and simulations.The proposed approach has a wide range of applications in various areas,such as imaging,data storage,and wireless communication.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    A memristive-photoconductive transduction methodology for accurately nondestructive memory readout

    Zhe ZhouYueyue WuKeyuan PanDuoyi Zhu...
    1801-1808页
    查看更多>>摘要：Crossbar resistive memory architectures enable high-capacity storage and neuromorphic computing,accurate retrieval of the stored information is a prerequisite during read operation.However,conventional electrical readout normally suffer from complicated process,inaccurate and destructive reading due to crosstalk effect from sneak path current.Here we report a memristive-photoconductive transduction(MPT)methodology for precise and nondestructive readout in a memristive crossbar array.The individual devices present dynamic filament form/fuse for resistance modulation under electric stimulation,which leads to photogenerated carrier transport for tunable photoconductive response under subsequently light pulse stimuli.This coherent signal transduction can be used to directly detect the memorized on/off states stored in each cell,and a prototype 4*4 crossbar memories has been constructed and validated for the fidelity of crosstalk-free readout in recall process.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Bottom-up construction of low-dimensional perovskite thick films for high-performance X-ray detection and imaging

    Siyin DongZhenghui FanWei WeiShujie Tie...
    1809-1819页
    查看更多>>摘要：Quasi-two-dimensional(Q-2D)perovskite exhibits exceptional photoelectric properties and demonstrates reduced ion migration compared to 3D perovskite,making it a promising material for the fabrication of highly sensitive and stable X-ray detectors.However,achieving high-quality perovskite films with sufficient thickness for efficient X-ray absorption remains challenging.Herein,we present a novel approach to regulate the growth of Q-2D perovskite crystals in a mixed atmosphere comprising methylamine(CH3NH2,MA)and ammonia(NH3),resulting in the successful fabrication of high-quality films with a thickness of hundreds of micrometers.Subsequently,we build a heterojunction X-ray detector by incorporating the perovskite layer with titanium dioxide(TiO2).The precise regulation of perovskite crystal growth and the meticulous design of the device structure synergistically enhance the resistivity and carrier transport properties of the X-ray detector,resulting in an ultrahigh sensitivity(29721.4 μC Gyair-1 cm-2)for low-dimensional perovskite X-ray detectors and a low detection limit of 20.9 nGyair s-1.We have further demonstrated a flat panel X-ray imager(FPXI)showing a high spatial resolution of 3.6 Ip mm-1 and outstanding X-ray imaging capability under low X-ray doses.This work presents an effective methodology for achieving high-performance Q-2D perovskite FPXIs that holds great promise for various applications in imaging technology.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Broadband nonreciprocal thermal emissivity and absorptivity

    Komron J.ShayeganJae S.HwangBo ZhaoAaswath P.Raman...
    1820-1827页
    查看更多>>摘要：A body that violates Kirchhoff's law of thermal radiation exhibits an inequality in its spectral directional absorptivity and emissivity.Achieving such an inequality is of fundamental interest as well as a prerequisite for achieving thermodynamic limits in photonic energy conversion1 and radiative cooling2.Thus far,inequalities in the spectral directional emissivity and absorptivity have been limited to narrow spectral resonances3,or wavelengths well beyond the infrared regime4.Bridging the gap from basic demonstrations to practical applications requires control over a broad spectral range of the unequal spectral directional absorptivity and emissivity.In this work,we demonstrate broadband nonreciprocal thermal emissivity and absorptivity by measuring the thermal emissivity and absorptivity of gradient epsilon-near-zero InAs layers of subwavelength thicknesses(50 nm and 150 nm)with an external magnetic field.The effect occurs in a spectral range(12.5-16 μm)that overlaps with the infrared transparency window and is observed at moderate(1 T)magnetic fields.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Vertically stacked skin-like active-matrix display with ultrahigh aperture ratio

    Juntong LiYanping NiXiaoli ZhaoBin Wang...
    1828-1840页
    查看更多>>摘要：Vertically stacked all-organic active-matrix organic light-emitting diodes are promising candidates for high-quality skin-like displays due to their high aperture ratio,extreme mechanical flexibility,and low-temperature processing ability.However,these displays suffer from process interferences when interconnecting functional layers made of all-organic materials.To overcome this challenge,we present an innovative integration strategy called"discrete preparation-multilayer lamination"based on microelectronic processes.In this strategy,each functional layer was prepared separately on different substrates to avoid chemical and physical damage caused by process interferences.A single interconnect layer was introduced between each vertically stacked functional layer to ensure mechanical compatibility and interconnection.Compared to the previously reported layer-by-layer preparation method,the proposed method eliminates the need for tedious protection via barrier and pixel-defining layer processing steps.Additionally,based on active-matrix display,this strategy allows multiple pixels to collectively display a pattern of"1"with an aperture ratio of 83％.Moreover,the average mobility of full-photolithographic organic thin-film transistors was 1.04cm2V-1 s-1,ensuring stable and uniform displays.This strategy forms the basis for the construction of vertically stacked active-matrix displays,which should facilitate the commercial development of skin-like displays in wearable electronics.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Pyramid diffractive optical networks for unidirectional image magnification and demagnification

    Bijie BaiXilin YangTianyi GanJingxi Li...
    1841-1864页
    查看更多>>摘要：Diffractive deep neural networks(D2NNs)are composed of successive transmissive layers optimized using supervised deep learning to all-optically implement various computational tasks between an input and output field-of-view.Here,we present a pyramid-structured diffractive optical network design(which we term P-D2NN),optimized specifically for unidirectional image magnification and demagnification.In this design,the diffractive layers are pyramidally scaled in alignment with the direction of the image magnification or demagnification.This P-D2NN design creates high-fidelity magnified or demagnified images in only one direction,while inhibiting the image formation in the opposite direction—achieving the desired unidirectional imaging operation using a much smaller number of diffractive degrees of freedom within the optical processor volume.Furthermore,the P-D2NN design maintains its unidirectional image magnification/demagnification functionality across a large band of illumination wavelengths despite being trained with a single wavelength.We also designed a wavelength-multiplexed P-D2NN,where a unidirectional magnifier and a unidirectional demagnifier operate simultaneously in opposite directions,at two distinct illumination wavelengths.Furthermore,we demonstrate that by cascading multiple unidirectional P-D2NN modules,we can achieve higher magnification factors.The efficacy of the P-D2NN architecture was also validated experimentally using terahertz illumination,successfully matching our numerical simulations.P-D2NN offers a physics-inspired strategy for designing task-specific visual processors.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Towards mixed physical node reservoir computing:light-emitting synaptic reservoir system with dual photoelectric output

    Minrui LianChangsong GaoZhenyuan LinLiuting Shan...
    1865-1877页
    查看更多>>摘要：Memristor-based physical reservoir computing holds significant potential for efficiently processing complex spatiotemporal data,which is crucial for advancing artificial intelligence.However,owing to the single physical node mapping characteristic of traditional memristor reservoir computing,it inevitably induces high repeatability of eigenvalues to a certain extent and significantly limits the efficiency and performance of memristor-based reservoir computing for complex tasks.Hence,this work firstly reports an artificial light-emitting synaptic(LES)device with dual photoelectric output for reservoir computing,and a reservoir system with mixed physical nodes is proposed.The system effectively transforms the input signal into two eigenvalue outputs using a mixed physical node reservoir comprising distinct physical quantities,namely optical output with nonlinear optical effects and electrical output with memory characteristics.Unlike previously reported memristor-based reservoir systems,which pursue rich reservoir states in one physical dimension,our mixed physical node reservoir system can obtain reservoir states in two physical dimensions with one input without increasing the number and types of devices.The recognition rate of the artificial light-emitting synaptic reservoir system can achieve 97.22％in MNIST recognition.Furthermore,the recognition task of multichannel images can be realized through the nonlinear mapping of the photoelectric dual reservoir,resulting in a recognition accuracy of 99.25％.The mixed physical node reservoir computing proposed in this work is promising for implementing the development of photoelectric mixed neural networks and material-algorithm collaborative design.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Upconversion-based chiral nanoprobe for highly selective dual-mode sensing and bioimaging of hydrogen sulfide in vitro and in vivo

    Yang LuXu ZhaoDongmei YanYingqian Mi...
    1878-1887页
    查看更多>>摘要：Chiral assemblies have become one of the most active research areas due to their versatility,playing an increasingly important role in bio-detection,imaging and therapy.In this work,chiral UCNPs/CuxOS@ZIF nanoprobes are prepared by encapsulating upconversion nanoparticles(UCNPs)and CuxOS nanoparticles(NPs)into zeolitic imidazolate framework-8(ZIF-8).The novel excited-state energy distribution-modulated upconversion nanostructure(NaYbF4@-NaYF4∶Yb,Er)is selected as the fluorescence source and energy donor for highly efficient fluorescence resonance energy transfer(FRET).CuxOS NP is employed as chiral source and energy acceptor to quench upconversion luminescence(UCL)and provide circular dichroism(CD)signal.Utilizing the natural adsorption and sorting advantages of ZIF-8,the designed nanoprobe can isolate the influence of other common disruptors,thus achieve ultra-sensitive and highly selective UCL/CD dual-mode quantification of H2S in aqueous solution and in living cells.Notably,the nanoprobe is also capable of in vivo intra-tumoral H2S tracking.Our work highlights the multifunctional properties of chiral nanocomposites in sensing and opens a new vision and idea for the preparation and application of chiral nanomaterials in biomedical and biological analysis.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Anisotropic phonon dynamics in Dirac semimetal PtTe2 thin films enabled by helicity-dependent ultrafast light excitation

    Ziyang LiYequan ChenAnke SongJinzhong Zhang...
    1888-1897页
    查看更多>>摘要：Coherent phonons have aroused considerable attention in condensed matter physics owing to their extraordinary capacity of reflecting and controlling the physical properties of matter.However,the investigation on the interaction between coherent phonons and other microscopic particles on the ultrafast timescale within topological systems continues to be an active and unresolved area.Here,we show the energy transfer of coherent optical phonons(COP)in Dirac semimetal PtTe2 thin films using ultrafast optical pump-probe spectroscopy.Specifically,the helicity-dependent light-driven anisotropic COP signals disclose their direct connection with the light-excited anisotropic spin-polarized electrons via an angular momentum transfer.Furthermore,we observe the notable decreases in the COP oscillation frequency and the decay rate with increasing temperatures due to the anharmonic phonon-phonon scattering and electron-phonon scattering in the COP dissipation process,respectively.Our work paves the way for uncovering the coherent phonons in Dirac semimetals for the potential applications in optoelectronics and opto-spintronics.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Metalenses phase characterization by multi-distance phase retrieval

    Bowen LiuJialuo ChengMaoxiong ZhaoJin Yao...
    1898-1907页
    查看更多>>摘要：Metalens,characterized by their unique functions and distinctive physical properties,have gained significant attention for their potential applications.To further optimize the performance of metalens,it is necessary to characterize the phase modulation of the metalens.In this study,we present a multi-distance phase retrieval system based on optical field scanning and discuss its convergence and robustness.Our findings indicate that the system is capable of retrieving the phase distribution of the metalens as long as the measurement noise is low and the total length of the scanned light field is sufficiently long.This system enables the analysis of focal length and aberration by utilizing the computed phase distribution.We extend our investigation to measure the phase distribution of the metalens operating in the near-infrared(NIR)spectrum and identify the impact of defects in the sample on the phase.Additionally,we conduct a comparative analysis of the phase distribution of the metalens in air and ethanol and observe the variations in the phase modulation of the metalens in different working mediums.Our system provides a straightforward method for the phase characterization of metalens,aiding in optimizing the metalens design and functionality.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据