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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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    Meta Shack-Hartmann wavefront sensor with large sampling density and large angular field of view:phase imaging of complex objects

    Gi-Hyun GoDong-gu LeeJaeyeon OhGookho Song...
    1908-1918页
    查看更多>>摘要：Shack-Hartmann wavefront sensors measure the local slopes of an incoming wavefront based on the displacement of focal spots created by a lenslet array,serving as key components for adaptive optics for astronomical and biomedical imaging.Traditionally,the challenges in increasing the density and the curvature of the lenslet have limited the use of such wavefront sensors in characterizing slowly varying wavefront structures.Here,we develop a metasurface-enhanced Shack-Hartmann wavefront sensor(meta SHWFS)to break this limit,considering the interplay between the lenslet parameters and the performance of SHWFS.We experimentally validate the meta SHWFS with a sampling density of 5963 per mm2 and a maximum acceptance angle of 8° which outperforms the traditional SFWFS by an order of magnitude.Furthermore,to the best of our knowledge,we demonstrate the first use of a wavefront sensing scheme in single-shot phase imaging of highly complex patterns,including biological tissue patterns.The proposed approach opens up new opportunities in incorporating exceptional light manipulation capabilities of the metasurface platform in complex wavefront characterization.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Breaking the in-coupling efficiency limit in waveguide-based AR displays with polarization volume gratings

    Yuqiang DingYuchen GuQian YangZhiyong Yang...
    1919-1930页
    查看更多>>摘要：Augmented reality(AR)displays,heralded as the next-generation platform for spatial computing,metaverse,and digital twins,empower users to perceive digital images overlaid with real-world environment,fostering a deeper level of human-digital interactions.With the rapid evolution of couplers,waveguide-based AR displays have streamlined the entire system,boasting a slim form factor and high optical performance.However,challenges persist in the waveguide combiner,including low optical efficiency and poor image uniformity,significantly hindering the long-term usage and user experience.In this paper,we first analyze the root causes of the low optical efficiency and poor uniformity in waveguide-based AR displays.We then discover and elucidate an anomalous polarization conversion phenomenon inherent to polarization volume gratings(PVGs)when the incident light direction does not satisfy the Bragg condition.This new property is effectively leveraged to circumvent the tradeoff between in-coupling efficiency and eyebox uniformity.Through feasibility demonstration experiments,we measure the light leakage in multiple PVGs with varying thicknesses using a laser source and a liquid-crystal-on-silicon light engine.The experiment corroborates the polarization conversion phenomenon,and the results align with simulation well.To explore the potential of such a polarization conversion phenomenon further,we design and simulate a waveguide display with a 50° field of view.Through achieving first-order polarization conversion in a PVG,the in-coupling efficiency and uniformity are improved by 2 times and 2.3 times,respectively,compared to conventional couplers.This groundbreaking discovery holds immense potential for revolutionizing next-generation waveguide-based AR displays,promising a higher efficiency and superior image uniformity.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Learnable digital signal processing:a new benchmark of linearity compensation for optical fiber communications

    Zekun NiuHang YangLyu LiMinghui Shi...
    1931-1943页
    查看更多>>摘要：The surge in interest regarding the next generation of optical fiber transmission has stimulated the development of digital signal processing(DSP)schemes that are highly cost-effective with both high performance and low complexity.As benchmarks for nonlinear compensation methods,however,traditional DSP designed with block-by-block modules for linear compensations,could exhibit residual linear effects after compensation,limiting the nonlinear compensation performance.Here we propose a high-efficient design thought for DSP based on the learnable perspectivity,called learnable DSP(LDSP).LDSP reuses the traditional DSP modules,regarding the whole DSP as a deep learning framework and optimizing the DSP parameters adaptively based on backpropagation algorithm from a global scale.This method not only establishes new standards in linear DSP performance but also serves as a critical benchmark for nonlinear DSP designs.In comparison to traditional DSP with hyperparameter optimization,a notable enhancement of approximately 1.21 dB in the Q factor for 400 Gb/s signal after 1600 km fiber transmission is experimentally demonstrated by combining LDSP and perturbation-based nonlinear compensation algorithm.Benefiting from the learnable model,LDSP can learn the best configuration adaptively with low complexity,reducing dependence on initial parameters.The proposed approach implements a symbol-rate DSP with a small bit error rate(BER)cost in exchange for a 48％complexity reduction compared to the conventional 2 samples/symbol processing.We believe that LDSP represents a new and highly efficient paradigm for DSP design,which is poised to attract considerable attention across various domains of optical communications.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Exciton-harvesting enabled efficient charged particle detection in zero-dimensional halides

    Qian WangChenger WangHongliang ShiJie Chen...
    1944-1955页
    查看更多>>摘要：Materials for radiation detection are critically important and urgently demanded in diverse fields,starting from fundamental scientific research to medical diagnostics,homeland security,and environmental monitoring.Low-dimensional halides(LDHs)exhibiting efficient self-trapped exciton(STE)emission with high photoluminescence quantum yield(PLQY)have recently shown a great potential as scintillators.However,an overlooked issue of exciton-exciton interaction in LDHs under ionizing radiation hinders the broadening of its radiation detection applications.Here,we demonstrate an exceptional enhancement of exciton-harvesting efficiency in zero-dimensional(0D)Cs3Cu2I5∶Tl halide single crystals by forming strongly localized Tl-bound excitons.Because of the suppression of non-radiative exciton-exciton interaction,an excellent α/β pulse-shape-discrimination(PSD)figure-of-merit(FoM)factor of 2.64,a superior rejection ratio of 10-9,and a high scintillation yield of 26 000 photons MeV-1 under 5.49 MeV α-ray are achieved in Cs3Cu2I5∶Tl single crystals,outperforming the commercial ZnS:Ag/PVT composites for charged particle detection applications.Furthermore,a radiation detector prototype based on Cs3Cu2I5:Tl single crystal demonstrates the capability of identifying radioactive 220Rn gas for environmental radiation monitoring applications.We believe that the exciton-harvesting strategy proposed here can greatly boost the applications of LDHs materials.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Organic polaritonic light-emitting diodes with high luminance and color purity toward laser displays

    Jianbo DeRuiyang ZhaoFan YinChunling Gu...
    1956-1963页
    查看更多>>摘要：Achieving high-luminescence organic light-emitting devices(OLEDs)with narrowband emission and high color purity is important in various optoelectronic fields.Laser displays exhibit outstanding advantages in next-generation display technologies owing to their ultimate visual experience,but this remains a great challenge.Here,we develop a novel OLED based organic single crystals.By strongly coupling the organic exciton state to an optical microcavity,we obtain polariton electroluminescent(EL)emission from the polariton OLEDs(OPLEDs)with high luminance,narrow-band emission,high color purity,high polarization as well as excellent optically pumped polariton laser.Further,we evaluate the potential for electrically pumped polariton laser through theoretical analysis and provide possible solutions.This work provides a powerful strategy with a material-device combination that paves the way for electrically driven organic single-crystal-based polariton luminescent devices and possibly lasers.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据

    Lens-free on-chip 3D microscopy based on wavelength-scanning Fourier ptychographic diffraction tomography

    Xuejuan WuNing ZhouYang ChenJiasong Sun...
    1964-1979页
    查看更多>>摘要：Lens-free on-chip microscopy is a powerful and promising high-throughput computational microscopy technique due to its unique advantage of creating high-resolution images across the full field-of-view(FOV)of the imaging sensor.Nevertheless,most current lens-free microscopy methods have been designed for imaging only two-dimensional thin samples.Lens-free on-chip tomography(LFOCT)with a uniform resolution across the entire FOV and at a subpixel level remains a critical challenge.In this paper,we demonstrated a new LFOCT technique and associated imaging platform based on wavelength scanning Fourier ptychographic diffraction tomography(wsFPDT).Instead of using angularly-variable illuminations,in wsFPDT,the sample is illuminated by on-axis wavelength-variable illuminations,ranging from 430 to 1200nm.The corresponding under-sampled diffraction patterns are recorded,and then an iterative ptychographic reconstruction procedure is applied to fill the spectrum of the three-dimensional(3D)scattering potential to recover the sample's 3D refractive index(RI)distribution.The wavelength-scanning scheme not only eliminates the need for mechanical motion during image acquisition and precise registration of the raw images but secures a quasi-uniform,pixel-super-resolved imaging resolution across the entire imaging FOV.With wsFPDT,we demonstrate the high-throughput,billion-voxel 3D tomographic imaging results with a half-pitch lateral resolution of 775 nm and an axial resolution of 5.43 μm across a large FOV of 29.85 mm2 and an imaging depth of＞200 μm.The effectiveness of the proposed method was demonstrated by imaging various types of samples,including micro-polystyrene beads,diatoms,and mouse mononuclear macrophage cells.The unique capability to reveal quantitative morphological properties,such as area,volume,and sphericity index of single cell over large cell populations makes wsFPDT a powerful quantitative and label-free tool for high-throughput biological applications.
      原文链接:
    • 国家科技期刊平台
    • NETL
    • NSTL
    • 万方数据