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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
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    Quantitative phase microscopies:accuracy comparison

    Patrick C.ChaumetPierre BonGuillaume MaireAnne Sentenac...
    2912-2940页
    查看更多>>摘要：Quantitative phase microscopies(QPMs)play a pivotal role in bio-imaging,offering unique insights that complement fluorescence imaging.They provide essential data on mass distribution and transport,inaccessible to fluorescence techniques.Additionally,QPMs are label-free,eliminating concerns of photobleaching and phototoxicity.However,navigating through the array of available QPM techniques can be complex,making it challenging to select the most suitable one for a particular application.This tutorial review presents a thorough comparison of the main QPM techniques,focusing on their accuracy in terms of measurement precision and trueness.We focus on 8 techniques,namely digital holographic microscopy(DHM),cross-grating wavefront microscopy(CGM),which is based on QLSI(quadriwave lateral shearing interferometry),diffraction phase microscopy(DPM),differential phase-contrast(DPC)microscopy,phase-shifting interferometry(PSI)imaging,Fourier phase microscopy(FPM),spatial light interference microscopy(SLIM),and transport-of-intensity equation(TIE)imaging.For this purpose,we used a home-made numerical toolbox based on discrete dipole approximation(IF-DDA).This toolbox is designed to compute the electromagnetic field at the sample plane of a microscope,irrespective of the object's complexity or the illumination conditions.We upgraded this toolbox to enable it to model any type of QPM,and to take into account shot noise.In a nutshell,the results show that DHM and PSI are inherently free from artefacts and rather suffer from coherent noise;In CGM,DPC,DPM and TIE,there is a trade-off between precision and trueness,which can be balanced by varying one experimental parameter;FPM and SLIM suffer from inherent artefacts that cannot be discarded experimentally in most cases,making the techniques not quantitative especially for large objects covering a large part of the field of view,such as eukaryotic cells.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Color-conversion displays:current status and future outlook

    Guijun LiMan-Chun TsengYu ChenFion Sze-Yan Yeung...
    2941-2961页
    查看更多>>摘要：The growing focus on enhancing color quality in liquid crystal displays(LCDs)and organic light-emitting diodes(OLEDs)has spurred significant advancements in color-conversion materials.Furthermore,color conversion is also important for the development and commercialization of Micro-LEDs.This article provides a comprehensive review of different types of color conversion methods as well as different types of color conversion materials.We summarize the current status of patterning process,and discuss key strategies to enhance display performance.Finally,we speculate on the future prospects and roles that color conversion will play in ultra-high-definition micro-and projection displays.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Research progress on aero-optical effects of hypersonic optical window with film cooling

    Shihe YiHaolin DingSuyiming LuoXiaobin Sun...
    2962-2982页
    查看更多>>摘要：In recent years,the demand for optical imaging and detection in hypersonic aircraft has been on the rise.The high-temperature and high-pressure compressed flow field near airborne optoelectronic devices creates significant interference with light transmission,known as hypersonic aero-optical effects.This effect has emerged as a key technological challenge,limiting hypersonic optical imaging and detection capabilities.This article focuses on introducing the thermal effects and optical transmission effects of hypersonic aero-optical effects,as along with corresponding suppression techniques.In addition,this article critically reviews and succinctly summarizes the advancements made in hypersonic aero-optical effects testing technology,while also delineating avenues for future research needs in this field.In conclusion,there is an urgent call for further exploration into the study of aero-optical effects under conditions characterized by high Mach,high enthalpy,and high Reynolds number in the future.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Quantum sensing with optically accessible spin defects in van der Waals layered materials

    Hong-Hua FangXiao-Jie WangXavier MarieHong-Bo Sun...
    2983-3003页
    查看更多>>摘要：Quantum sensing has emerged as a powerful technique to detect and measure physical and chemical parameters with exceptional precision.One of the methods is to use optically active spin defects within solid-state materials.These defects act as sensors and have made significant progress in recent years,particularly in the realm of two-dimensional(2D)spin defects.In this article,we focus on the latest trends in quantum sensing that use spin defects in van der Waals(vdW)materials.We discuss the benefits of combining optically addressable spin defects with 2D vdW materials while highlighting the challenges and opportunities to use these defects.To make quantum sensing practical and applicable,the article identifies some areas worth further exploration.These include identifying spin defects with properties suitable for quantum sensing,generating quantum defects on demand with control of their spatial localization,understanding the impact of layer thickness and interface on quantum sensing,and integrating spin defects with photonic structures for new functionalities and higher emission rates.The article explores the potential applications of quantum sensing in several fields,such as superconductivity,ferromagnetism,2D nanoelectronics,and biology.For instance,combining nanoscale microfluidic technology with nanopore and quantum sensing may lead to a new platform for DNA sequencing.As materials technology continues to evolve,and with the advancement of defect engineering techniques,2D spin defects are expected to play a vital role in quantum sensing.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Miniaturized on-chip spectrometer enabled by electrochromic modulation

    Menghan TianBaolei LiuZelin LuYao Wang...
    3004-3014页
    查看更多>>摘要：Miniaturized on-chip spectrometers with small footprints,lightweight,and low cost are in great demand for portable optical sensing,lab-on-chip systems,and so on.Such miniaturized spectrometers are usually based on engineered spectral response units and then reconstruct unknown spectra with algorithms.However,due to the limited footprints of computational on-chip spectrometers,the recovered spectral resolution is limited by the number of integrated spectral response units/filters.Thus,it is challenging to improve the spectral resolution without increasing the number of used filters.Here we present a computational on-chip spectrometer using electrochromic filter-based computational spectral units that can be electrochemically modulated to increase the efficient sampling number for higher spectral resolution.These filters are directly integrated on top of the photodetector pixels,and the spectral modulation of the filters results from redox reactions during the dual injection of ions and electrons into the electrochromic material.We experimentally demonstrate that the spectral resolution of the proposed spectrometer can be effectively improved as the number of applied voltages increases.The average difference of the peak wavelengths between the reconstructed and the reference spectra decreases from 1.61 nm to 0.29 nm.We also demonstrate the proposed spectrometer can be worked with only four or two filter units,assisted by electrochromic modulation.In addition,we also demonstrate that the electrochromic filter can be easily adapted for hyperspectral imaging,due to its uniform transparency.This strategy suggests a new way to enhance the performance of miniaturized spectrometers with tunable spectral filters for high resolution,low-cost,and portable spectral sensing,and would also inspire the exploration of other stimulus responses such as photochromic and force-chromic,etc,on computational spectrometers.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Additive engineering for Sb2S3 indoor photovoltaics with efficiency exceeding 17％

    Xiao ChenXiaoxuan ShuJiacheng ZhouLei Wan...
    3015-3029页
    查看更多>>摘要：Indoor photovoltaics(IPVs)have attracted increasing attention for sustainably powering Internet of Things(IoT)electronics.Sb2S3 is a promising IPV candidate material with a bandgap of～1.75 eV,which is near the optimal value for indoor energy harvesting.However,the performance of Sb2S3 solar cells is limited by nonradiative recombination,which is dependent on the quality of the absorber films.Additive engineering is an effective strategy to fine tune the properties of solution-processed films.This work shows that the addition of monoethanolamine(MEA)into the precursor solution allows the nucleation and growth of Sb2S3 films to be controlled,enabling the deposition of high-quality Sb2S3 absorbers with reduced grain boundary density,optimized band positions,and increased carrier concentration.Complemented with computations,it is revealed that the incorporation of MEA leads to a more efficient and energetically favorable deposition for enhanced heterogeneous nucleation on the substrate,which increases the grain size and accelerates the deposition rate of Sb2S3 films.Due to suppressed carrier recombination and improved charge-carrier transport in Sb2S3 absorber films,the MEA-modulated Sb2S3 solar cell yields a power conversion efficiency(PCE)of 7.22％under AM1.5 G illumination,and an IPV PCE of 17.55％under 1000 lux white light emitting diode(WLED)illumination,which is the highest yet reported for Sb2S3 IPVs.Furthermore,we construct high performance large-area Sb2S3 IPV minimodules to power IoT wireless sensors,and realize the long-term continuous recording of environmental parameters under WLED illumination in an office.This work highlights the great prospect of Sb2S3 photovoltaics for indoor energy harvesting.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Deep learning with photonic neural cellular automata

    Gordon H.Y.LiChristian R.LeefmansJames WilliamsRobert M.Gray...
    3030-3040页
    查看更多>>摘要：Rapid advancements in deep learning over the past decade have fueled an insatiable demand for efficient and scalable hardware.Photonics offers a promising solution by leveraging the unique properties of light.However,conventional neural network architectures,which typically require dense programmable connections,pose several practical challenges for photonic realizations.To overcome these limitations,we propose and experimentally demonstrate Photonic Neural Cellular Automata(PNCA)for photonic deep learning with sparse connectivity.PNCA harnesses the speed and interconnectivity of photonics,as well as the self-organizing nature of cellular automata through local interactions to achieve robust,reliable,and efficient processing.We utilize linear light interference and parametric nonlinear optics for all-optical computations in a time-multiplexed photonic network to experimentally perform self-organized image classification.We demonstrate binary(two-class)classification of images using as few as 3 programmable photonic parameters,achieving high experimental accuracy with the ability to also recognize out-of-distribution data.The proposed PNCA approach can be adapted to a wide range of existing photonic hardware and provides a compelling alternative to conventional photonic neural networks by maximizing the advantages of light-based computing whilst mitigating their practical challenges.Our results showcase the potential of PNCA in advancing photonic deep learning and highlights a path for next-generation photonic computers.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Ultra-high brightness Micro-LEDs with wafer-scale uniform GaN-on-silicon epilayers

    Haifeng WuXiao LinQin ShuaiYouliang Zhu...
    3041-3051页
    查看更多>>摘要：Owing to high pixel density and brightness,gallium nitride(GaN)based micro-light-emitting diodes(Micro-LEDs)are considered revolutionary display technology and have important application prospects in the fields of micro-display and virtual display.However,Micro-LEDs with pixel sizes smaller than 10 μm still encounter technical challenges such as sidewall damage and limited light extraction efficiency,resulting in reduced luminous efficiency and severe brightness non-uniformity.Here,we reported high-brightness green Micro-displays with a 5 μm pixel utilizing high-quality GaN-on-Si epilayers.Four-inch wafer-scale uniform green GaN epilayer is first grown on silicon substrate,which possesses a low dislocation density of 5.25 × 108 cm-2,small wafer bowing of 16.7 μm,and high wavelength uniformity(standard deviation STDEV＜1 nm),scalable to 6-inch sizes.Based on the high-quality GaN epilayers,green Micro-LEDs with 5 μm pixel sizes are designed with vertical non-alignment bonding technology.An atomic sidewall passivation method combined with wet treatment successfully addressed the Micro-LED sidewall damages and steadily produced nano-scale surface textures on the pixel top,which unlocked the internal quantum efficiency of the high-quality green GaN-on-Si epi-wafer.Ultra-high brightness exceeding 107cd/m2(nits)is thus achieved in the green Micro-LEDs,marking the highest reported results.Furthermore,integration of Micro-LEDs with Si-based CMOS circuits enables the realization of green Micro-LED displays with resolution up to 1080 × 780,realizing high-definition playback of movies and images.This work lays the foundation for the mass production of high-brightness Micro-LED displays on large-size GaN-on-Si epi-wafers.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Extended-depth of field random illumination microscopy,EDF-RIM,provides super-resolved projective imaging

    Lorry MazzellaThomas MangeatGuillaume GiroussensBenoit Rogez...
    3052-3063页
    查看更多>>摘要：The ultimate aim of fluorescence microscopy is to achieve high-resolution imaging of increasingly larger biological samples.Extended depth of field presents a potential solution to accelerate imaging of large samples when compression of information along the optical axis is not detrimental to the interpretation of images.We have implemented an extended depth of field(EDF)approach in a random illumination microscope(RIM).RIM uses multiple speckled illuminations and variance data processing to double the resolution.It is particularly adapted to the imaging of thick samples as it does not require the knowledge of illumination patterns.We demonstrate highly-resolved projective images of biological tissues and cells.Compared to a sequential scan of the imaged volume with conventional 2D-RIM,EDF-RIM allows an order of magnitude improvement in speed and light dose reduction,with comparable resolution.As the axial information is lost in an EDF modality,we propose a method to retrieve the sample topography for samples that are organized in cell sheets.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Excitation-wavelength-dependent persistent luminescence from single-component nonstoichiometric CaGaxO4∶Bi for dynamic anti-counterfeiting

    Bo-Mei LiuYue LinYingchun LiuBibo Lou...
    3064-3075页
    查看更多>>摘要：Materials capable of dynamic persistent luminescence(PersL)within the visible spectrum are highly sought after for applications in display,biosensing,and information security.However,PersL materials with eye-detectable and excitation-wavelength-dependent characteristics are rarely achieved.Herein,a nonstoichiometric compound CaGaxO4∶Bi(x＜2)is present,which demonstrates ultra-long,color-tunable PersL.The persistent emission wavelength can be tuned by varying the excitation wavelength,enabling dynamic color modulation from the green to the orange region within the visible spectrum.Theoretical calculations,in conjunction with experimental observations,are utilized to elucidate the thermodynamic charge transitions of various defect states,thereby providing insights into the relationship between Bi3+emitters,traps,and multicolored PersL.Furthermore,the utility of color-tunable PersL materials and flexible devices is showcased for use in visual sensing of invisible ultraviolet light,multicolor display,information encryption,and anti-counterfeiting.These discoveries create new opportunities to develop smart photoelectric materials with dynamically controlled PersL for various applications.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据