{"title":"Optical anisotropy enables skyrmions for robust information encoding","authors":"Ziyu Zhan, Qiang Liu, Xing Fu","doi":"10.1038/s41377-026-02396-1","DOIUrl":"https://doi.org/10.1038/s41377-026-02396-1","url":null,"abstract":"Skyrmions are typically tied to sphere-valued vector fields. Here, researchers break this paradigm by generalizing their construction through parameter space dimensionality reduction and realizing it in structured optical anisotropy, which enables directly readable and perturbation robust skyrmionic states for topological information encoding.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hui Bao, Seyed Mehdi Sattari-Esfahlan, Haizheng Zhong
{"title":"A nanocrystal-based PN junction model for quantum dot light-emitting diodes","authors":"Hui Bao, Seyed Mehdi Sattari-Esfahlan, Haizheng Zhong","doi":"10.1038/s41377-026-02356-9","DOIUrl":"https://doi.org/10.1038/s41377-026-02356-9","url":null,"abstract":"The PN junction of semiconductors plays an important role in designing and developing light-emitting diodes. In contrast, the characteristics of PN junctions in quantum dot light-emitting diodes (QLED) have been less discussed. In this work, we analyzed the current-voltage (I–V) characteristics of QLED using a modified nano-PN junction model, which combines a silicon-based PN junction model and a hopping transport model. Under the assumption of recombination current dominance in high-efficiency QLEDs, the correlations between complete QLED I–V curves and their constituent sub-device characteristics were derived. The voltage distribution and Quasi-Fermi level splitting of functional layers were performed to elucidate the high ideality factors of QLED devices. The nanocrystal-based PN junction model was extended to simulate the experimental I–V curves of efficient QLED devices. In all, this work not only deepens the device understanding into QLED from the view of semiconductor physics, but also builds up a theoretical framework of nanocrystal-based PN junctions.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Two-photon interference between independent atomic and quantum dot single-photon sources for hybrid quantum network.","authors":"Kyu-Young Kim,Heewoo Kim,Dong Hyun Park,Jinhyuk Bae,Gyeongmin Ju,Suk In Park,Jin Dong Song,Je-Hyung Kim,Han Seb Moon","doi":"10.1038/s41377-026-02399-y","DOIUrl":"https://doi.org/10.1038/s41377-026-02399-y","url":null,"abstract":"Hybrid quantum systems play a crucial role in advancing scalable and versatile quantum networks as they combine the strengths of different quantum platforms. An important challenge for the development of hybrid quantum networks lies in interfacing heterogeneous quantum nodes and distributing entanglement among them. Single photons emitted from these dissimilar quantum nodes typically show distinct spectral and temporal properties. Therefore, they necessitate emitters' spectral modification and temporal synchronization, which introduce significant photon losses and require additional resources. In this work, we successfully generate indistinguishable photons from two distinct quantum systems: a warm atomic ensemble and a solid-state quantum dot. Remarkably, two-photon interference between dissimilar sources is achieved without additional spectral modification of single photons under continuous-wave operation and time-resolved coincidence detection, providing a practical route toward hybrid quantum nodes. A 133Cs atomic ensemble can efficiently generate heralded single photons at the wavelength of 917 nm of the 6 P 3 / 2 - 6 D 5 / 2 transition, while the single photons emitted from an InAs/GaAs quantum dot can be tuned to match the 133Cs transition wavelength. Our dense warm atomic ensemble and cavity-coupled quantum dot can efficiently generate bright and resonant single photons at detection rates approaching the MHz range, respectively. More importantly, these single photons exhibit inherent spectral similarity not only in the wavelength but also in the spectral linewidth, achieving a high spectral overlap of 0.88 . Such intrinsic compatibility between dissimilar quantum sources is essential to leverage the advantages of different quantum platforms, paving the way toward a large-scale and functional hybrid quantum network.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148451702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spin-multiplexed point spread function engineering via dielectric metasurface for simultaneous optical differentiation and high-resolution imaging.","authors":"Niu Liu,Zhelin Lin,Zhenyu Xing,Yuhui Hu,Yuxuan Liao,Amit Agrawal,Xinliang Zhang,Cheng Zhang","doi":"10.1038/s41377-026-02229-1","DOIUrl":"https://doi.org/10.1038/s41377-026-02229-1","url":null,"abstract":"In the era of artificial intelligence and machine learning, all-optical computing has garnered renewed attention for its intrinsic advantages in processing speed, energy efficiency, and parallelism over electronic systems. A key operation in such architecture is optical differentiation, which enables edge detection and feature extraction from target scenes. Metasurfaces-capable of controlling the amplitude, phase, and polarization of light at the nanoscale-have emerged as promising platforms for implementing compact optical differentiators. However, existing designs typically rely on auxiliary imaging optics to capture the processed outputs and are often limited in spatial resolution or differentiation order. Here, we introduce a new class of metasurface optical differentiators that simultaneously achieve arbitrary-order optical differentiation and high-resolution imaging in a standalone single-layer configuration, eliminating the need for additional optics. By precisely engineering multiple complex-valued point spread functions via spin multiplexing, our design enables on-demand, arbitrary-order differentiation directly across the light field and overcomes long-standing constraints in spatial resolution and operational flexibility. We experimentally demonstrate two devices capable of performing 0th/1st-order and 2nd/3rd-order differentiation with spatial resolution up to 228.0 lp/mm (line width of 2.19 μm). Their performance is further validated across diverse scenarios, including high-intensity illumination and real-time live cell imaging. Our results demonstrate that through rigorous point spread function engineering, metasurfaces offer a transformative platform for integrated, high-performance all-optical computing systems with broad potential in biological imaging, information processing, and material characterization.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"250 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148451721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical singularity protractor for rotating metrology with neuromorphic sensing","authors":"Zhe Weng, Yiyu Zhao, Zhiming Qing, Zhi-Cheng Ren, Wenxiang Yan, Xi-Lin Wang, Jianping Ding, Hui-Tian Wang","doi":"10.1038/s41377-026-02357-8","DOIUrl":"https://doi.org/10.1038/s41377-026-02357-8","url":null,"abstract":"The development of singular optics and vortex beams has facilitated numerous novel optical applications, with optical sensing being one prominent direction. By leveraging the rotational energy flow properties of vortex beams, rotational Doppler effect-based sensing for rotating objects has achieved significant progress. However, due to fundamental constraints of orbital angular momentum (OAM) and interferometry-based experimental methods, rotational Doppler sensing typically requires stringent axial alignment (single-point or multi-point) in practical scenarios, which limits their applicability. To address these limitations, this study focuses on developing rotating metrology utilizing singularities inherently associated with vortex phases, akin to the recently developed singularity ruler employing intrinsic/extrinsic modification of OAM density. In this work, we propose a sensing technique termed the “Optical Singularity Protractor (OSinP)”, which utilizes the angular velocity of singularities to reflect the rotational speed of optical fields. To extend the stable singularity ruler to dynamic rotation sensing, we developed a real-time neuromorphic singularity perception system capable of acquiring microsecond-level-resolution time-series data regarding singularity positions and movement directions, thereby enabling the sensing of optical field rotation velocity. Furthermore, we challenged the OSinP system with practical constraints, notably off-axis rotation and non-steady-state velocity, to verify its robust operational capabilities. This singularity sensing technique distinguishes itself from traditional rotation sensing by introducing neuromorphic computing into topological structured light and holds promise for neuromorphic applications in fields with stringent energy-efficiency requirements, such as astronomical metrology and embodied intelligence.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148432214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Background-free quantitative phase imaging with adaptive-optics surface plasmon resonance holographic microscopy","authors":"Siqing Dai, Mengmeng Zhang, Yushan Shen, Haoyu Xu, Li Ren, Hua Lu, Jiwei Zhang, Gerd Ulrich Nienhaus, Jianlin Zhao","doi":"10.1038/s41377-026-02362-x","DOIUrl":"https://doi.org/10.1038/s41377-026-02362-x","url":null,"abstract":"Quantitative phase imaging (QPI) in the near field is a powerful tool for visualizing nanoscale structures in low-dimensional materials, dielectric mixtures and biological cells. Although near-field QPI offers extremely high sensitivity, phase aberrations of the optical system can pose serious limitations. Overcoming these problems, we introduce an adaptive optics approach that takes advantage of the complex amplitude measured by digital holographic microscopy (DHM). By using a spatial light modulator as a beam shaping device, our method allows for in-situ, accurate, fast and flexible aberration correction by quantifying wavefront distortions in terms of Zernike modes, and pre-compensating them with a spatial light modulator. For validation, we demonstrate near-field phase imaging with adaptive-optics surface plasmon resonance holographic microscopy (AO-SPRHM) on microstructured test samples and live cells. With a total correction time below 1 s, background-free time-lapse imaging over many hours becomes feasible. The approach can be easily transferred to other phase imaging techniques, including transmission, reflection and total internal reflection DHM as well as related modalities.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148432427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Feifei Xin, Yehonatan Gelkop, Ewout van der Veer, Beatriz Noheda, Ludovica Falsi, Guoquan Zhang, Fang Bo, Aharon J. Agranat, Eugenio DelRe
{"title":"Spontaneous formation and optical manipulation of a woven domain fabric in a ferroelectric crystal","authors":"Feifei Xin, Yehonatan Gelkop, Ewout van der Veer, Beatriz Noheda, Ludovica Falsi, Guoquan Zhang, Fang Bo, Aharon J. Agranat, Eugenio DelRe","doi":"10.1038/s41377-026-02374-7","DOIUrl":"https://doi.org/10.1038/s41377-026-02374-7","url":null,"abstract":"Advances in ferroelectric materials, including engineered thin films and solid solutions, have enabled reliable photonic memory devices using switchable polarization states, providing fast, non-volatile, and energy-efficient optical data storage. Moreover, the ability to optically manipulate these encoded domain structures allows precise, reconfigurable light control, further enhancing photonic memory performance and versatility. We report the first observation of a robust, woven fabric of interlaced domains that spontaneously forms in bulk KTN:Li as it undergoes the ferroelectric phase transition, and demonstrate its local manipulation using focused light. The braided domain structure emerges as an extended irregular topologically-protected defect with an embedded distribution of locked-in charged domain walls, activation points that allow site-by-site manipulation using visible laser. Our discovery of woven fabric that can be optically addressed introduces a new route to achieve extended solid-state topologically-protected photonic memory.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148432213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bridging the gap in flat optics: the dawn of partially nonlocal metasurfaces","authors":"Jingxuan Wei, Yong Liu","doi":"10.1038/s41377-026-02397-0","DOIUrl":"https://doi.org/10.1038/s41377-026-02397-0","url":null,"abstract":"Overcoming the traditional trade-off between spatial control and high quality factors, a new class of multifunctional photonic crystals bridges the gap between local and nonlocal light manipulation. This work opens a new frontier in flat optics: the realm of partially nonlocal metasurfaces, paving the way for advanced imaging, communication, and analog optical computing.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148432425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impacts of particle morphology and rotation on optical manipulation.","authors":"Weicheng Yi,Yuzhi Shi,Hongfei Jiao,Chengxing Lai,Haiyang Huang,Xinhua Dai,Xiaoyun Gong,Hui Zhang,Qinghua Song,Zhanshan Wang,Zeyong Wei,C T Chan,Cheng-Wei Qiu,Xinbin Cheng","doi":"10.1038/s41377-026-02403-5","DOIUrl":"https://doi.org/10.1038/s41377-026-02403-5","url":null,"abstract":"It is well known that nonspherical particles rotate continuously in light beams, with their rotation directions determined by the light spin. Here, we reveal that particle morphology (e.g., size, shape, length, etc.) and rotation angle are vital in influencing light-matter interactions, thereby optical torques (OTs) and forces, especially in a paraxial or slightly defocused optical system. Positive and negative OTs emerge with distinct rotation angles in light fields. Their competition can also freeze the particle's rotation, leading to the stable lateral drift effect. These extraordinary OTs arise from the nonuniformly distributed optical force vectors in the paraxial trapping. Experimentally, we observe positive and negative OTs, and bilateral drift (zero OT) of various particles (e.g., long and short cylinders, triangles, irregular shapes, etc.) under the influence of inverse optical forces and torques. Our works delve into a fascinating domain where morphologies and rotation angles of particles play essential roles in optical manipulation, enriching the fundamental understanding of optical forces and torques.","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148428695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A new beacon for optics: Light Office in Türkiye and its opening forum.","authors":"Chenzi Guo,Yuhong Bai,Sedat Nizamoğlu","doi":"10.1038/s41377-026-02423-1","DOIUrl":"https://doi.org/10.1038/s41377-026-02423-1","url":null,"abstract":"","PeriodicalId":18069,"journal":{"name":"Light-Science & Applications","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148415846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}