Light, science & applications最新文献_第2页

Enhanced infrared-to-visible upconversion imaging via metasurface-lanthanide nanoparticle hybrid screens. 通过超表面-镧系纳米颗粒混合屏幕增强红外-可见光上转换成像。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-09 DOI: 10.1038/s41377-026-02449-5

Nima Sefidmooye Azar, Matthew Parry, Xiao Qi, Changhwan Lee, Wendy S L Lee, Benjamin Russell, Wei Luo, Robert W de Gille, Damian Nelson, Sivacarendran Balendhran, Jiajun Meng, Henry Tan, Gus O Bonin, Duk-Yong Choi, P James Schuck, Emory M Chan, Bruce E Cohen, Dragomir N Neshev, Kenneth B Crozier

{"title":"Enhanced infrared-to-visible upconversion imaging via metasurface-lanthanide nanoparticle hybrid screens.","authors":"Nima Sefidmooye Azar, Matthew Parry, Xiao Qi, Changhwan Lee, Wendy S L Lee, Benjamin Russell, Wei Luo, Robert W de Gille, Damian Nelson, Sivacarendran Balendhran, Jiajun Meng, Henry Tan, Gus O Bonin, Duk-Yong Choi, P James Schuck, Emory M Chan, Bruce E Cohen, Dragomir N Neshev, Kenneth B Crozier","doi":"10.1038/s41377-026-02449-5","DOIUrl":"10.1038/s41377-026-02449-5","url":null,"abstract":"Accessing the rich information carried by infrared light typically relies on bulky, complex optoelectronic systems. Lanthanide-based upconverting nanoparticles (UCNPs) offer a compelling alternative by converting infrared light into visible photons through nonlinear anti-Stokes processes. However, achieving strong upconversion under the low excitation intensities relevant to infrared vision remains challenging, motivating strategies to enhance light-matter interaction. Here, we demonstrate enhanced infrared-to-visible upconversion imaging enabled by integrating alloyed Yb/Er UCNPs with a resonant dielectric metasurface. The metasurface supports an optical resonance aligned with the UCNP excitation band, leading to over three orders of magnitude enhancement in upconversion emission. Crucially, flat-band angular dispersion of this resonance enables uniform enhancement across incident angles relevant to imaging, thereby preserving spatial frequency content and yielding sharp, high-contrast images. In light of ongoing advances in lanthanide-based materials, this metasurface-UCNP hybrid screen provides a promising platform for compact, detector-free, and scalable infrared imaging technologies based on optical upconversion.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13558671/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148920491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tuning superposition of multiple Fano interferences for efficient plasmon resonance energy transfer to the assembled molecules. 调谐多重范诺干涉的叠加，以实现高效的等离子体共振能量转移到组装的分子。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-09 DOI: 10.1038/s41377-026-02381-8

Yishuang Wang, Xueqing Sang, Zhen-Long Dou, Qin-Xing Zhou, Zhiyu Zhao, Da-Jie Yang, Yan Zhang, Li Zhou, Xiaoguang Li, Qu-Quan Wang

{"title":"Tuning superposition of multiple Fano interferences for efficient plasmon resonance energy transfer to the assembled molecules.","authors":"Yishuang Wang, Xueqing Sang, Zhen-Long Dou, Qin-Xing Zhou, Zhiyu Zhao, Da-Jie Yang, Yan Zhang, Li Zhou, Xiaoguang Li, Qu-Quan Wang","doi":"10.1038/s41377-026-02381-8","DOIUrl":"10.1038/s41377-026-02381-8","url":null,"abstract":"Plasmon-exciton Fano interference provides an efficient channel for coherent energy transfer, and the plasmon resonance energy transfer (PRET) peak is usually observed around the Fano dip at the exciton resonance. In this work, we achieve tunable multiple Fano interferences and multichannel PRET by strategically coupling five excitonic resonances (labeled as M, Dh, Dj, H, and J) of assembled IR806 molecules with Au nanobipyramids and nanorods (AuNBPs and AuNRs, respectively). Notably, owing to orientation-dependent molecule-plasmon coupling in the IR806/AuNBP hybrids, we observe two PRET peaks with opposite signs of Fano factor <math><mi>q</mi></math> . One PRET peak remains fixed near the J-aggregate exciton resonance at ~900 nm, whereas the other is located around the plasmon resonance and tuned from 710 to 920 nm. The total PRET reaches a maximum when the two PRET peaks are tuned into spectral overlap. Furthermore, our newly developed semiclassical model quantitatively reproduces these features, which reveals that PRET enhancement arises from the superposition of multiple Fano interferences. These findings provide a novel strategy to enhance the efficiency and tunability of the PRET, opening avenues for advanced applications in ultrafast optical information processing and highly sensitive photodetectors.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13558751/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148919311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exceptional points, lasing, and coherent perfect absorption in Floquet scattering systems. Floquet散射系统中的特殊点，激光和相干完美吸收。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-09 DOI: 10.1038/s41377-026-02380-9

David Globosits, Puneet Garg, Jakob Hüpfl, Adrià Canós Valero, Thomas Weiss, Carsten Rockstuhl, Stefan Rotter

{"title":"Exceptional points, lasing, and coherent perfect absorption in Floquet scattering systems.","authors":"David Globosits, Puneet Garg, Jakob Hüpfl, Adrià Canós Valero, Thomas Weiss, Carsten Rockstuhl, Stefan Rotter","doi":"10.1038/s41377-026-02380-9","DOIUrl":"10.1038/s41377-026-02380-9","url":null,"abstract":"Periodically time-varying media, known as photonic time crystals (PTCs), provide a promising platform for observing unconventional wave phenomena. We analyze the scattering of electromagnetic waves from spatially finite PTCs using the multispectral Floquet scattering matrix, which naturally incorporates the frequency-mixing processes intrinsic to such systems. For dispersionless, real, and time-periodic permittivities, this matrix is pseudounitary. Here, we demonstrate that this property leads to multiple symmetry-breaking transitions: for increasing driving strength, scattering matrix eigenvalues lying on the unit circle (unbroken symmetry regime) meet at exceptional points (EPs), where they break up into inverse complex conjugate pairs (broken symmetry regime). We identify the symmetry operator associated with these transitions and show that, in time-symmetric systems, it corresponds to the time-reversal operator. Remarkably, at the parametric resonance condition, one eigenvalue vanishes while its partner diverges, signifying simultaneous coherent perfect absorption (CPA) and lasing. Since our approach relies solely on the Floquet scattering matrix, it is not restricted to a specific geometry but instead applies to any periodically time-varying scattering system. To illustrate this universality, we apply our method to a variety of periodically time-modulated structures, including slabs, spheres, and metasurfaces. In particular, we show that using quasi-bound states in the continuum resonances sustained by a metasurface, the CPA and lasing conditions can be attained for a minimal modulation strength of the permittivity. Our results pave the way for engineering time-modulated photonic systems with tailored scattering properties, opening new avenues for dynamic control of light in next-generation optical devices.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13558774/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148920496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadening the color palette of optical skyrmions. 拓宽光学天空的调色板。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-08 DOI: 10.1038/s41377-026-02466-4

Mingjian Cheng, Andrew Forbes

引用次数: 0

Single-mode lasers before the merger. 合并前的单模激光器。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-08 DOI: 10.1038/s41377-026-02467-3

G Zito

引用次数: 0

An "interlocking" core-shell architecture stabilises perovskite nanocrystal emitters. “互锁”核壳结构稳定钙钛矿纳米晶体发射器。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-08 DOI: 10.1038/s41377-026-02441-z

Xinyu Shen, Henry J Snaith

引用次数: 0

Electrically switchable dual-focus metalens for depth-extended in vivo photoacoustic imaging of ophthalmic vascular disease. 电开关双焦点超透镜用于眼部血管疾病的深度扩展体内光声成像。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-04 DOI: 10.1038/s41377-026-02365-8

Hongyoon Kim, Eunwoo Park, Jeongwoo Park, Dong Kyo Oh, Jehyeon Shin, Hyeonsu Heo, Chulhong Kim, Junsuk Rho

{"title":"Electrically switchable dual-focus metalens for depth-extended in vivo photoacoustic imaging of ophthalmic vascular disease.","authors":"Hongyoon Kim, Eunwoo Park, Jeongwoo Park, Dong Kyo Oh, Jehyeon Shin, Hyeonsu Heo, Chulhong Kim, Junsuk Rho","doi":"10.1038/s41377-026-02365-8","DOIUrl":"10.1038/s41377-026-02365-8","url":null,"abstract":"High-resolution three-dimensional imaging is essential for visualizing fine biological details. Unlike conventional optical imaging, photoacoustic (PA) imaging provides volumetric imaging by capturing time-of-flight ultrasound waves generated from optical absorption within tissues. Optical-resolution photoacoustic microscopy achieves micron-scale lateral resolution through tight optical focusing but suffers from a shallow depth of focus. To address this, non-diffracting beams (e.g., Bessel and needle beams) have been explored, but they introduce high side lobes that reduce the signal-to-noise ratio and distribute laser energy over a larger volume, reducing signal intensity. Here, we present an electrically modulated dual-focus metalens-based photoacoustic microscopy (meta-PAM) system designed to enhance axial coverage (1.2 mm) while preserving high lateral resolution (3.7 μm) in three-dimensional imaging. Our system features a silicon nitride nanostructured metalens that switches between two diffraction-limited focal modes at a visible wavelength without mechanical movement, with focal switching voltages of 0.87 V and 1.03 V and a response time of 250 ms. We demonstrate its effectiveness by imaging a chemically induced corneal burn in rat eyes, successfully monitoring neovascularization with high resolution across the entire eye depth range. Our compact yet effective system provides building blocks for future high-resolution volumetric imaging with an improved signal-to-noise ratio.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13545080/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148892011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Van der Waals/MCT heterostructure enabled high-performance uncooled mid-infrared photodetectors via synergistic suppression of dark current and interfacial recombination. 范德华/MCT异质结构通过协同抑制暗电流和界面复合实现了高性能非冷却中红外光电探测器。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-02 DOI: 10.1038/s41377-026-02418-y

Xinlei Zhang, Tao Zhou, Yueying Cui, Ruizhi Li, Hao Wu, Yuwei Zhang, Rui Lin, Fang Yang, Kaiyang Liu, Jianfeng Wu, Dongyang Wan, Jialin Zhang, Junpeng Lu, Zhenhua Ni

{"title":"Van der Waals/MCT heterostructure enabled high-performance uncooled mid-infrared photodetectors via synergistic suppression of dark current and interfacial recombination.","authors":"Xinlei Zhang, Tao Zhou, Yueying Cui, Ruizhi Li, Hao Wu, Yuwei Zhang, Rui Lin, Fang Yang, Kaiyang Liu, Jianfeng Wu, Dongyang Wan, Jialin Zhang, Junpeng Lu, Zhenhua Ni","doi":"10.1038/s41377-026-02418-y","DOIUrl":"10.1038/s41377-026-02418-y","url":null,"abstract":"Mid-wavelength infrared (MWIR) photodetection is crucial for applications such as night vision, remote sensing, spectral imaging and optical communication, yet its room-temperature operation faces a fundamental challenge of excessive dark current. While high-operating-temperature (HOT) HgCdTe (MCT) devices mitigate this issue through band structure engineering, their practical implementation is hindered by the intricate multilayer heteroepitaxy and lattice-mismatch-induced interfacial defects. To simultaneously resolve these bottlenecks, we develop a van der Waals (vdW) heterostructure strategy by integrating two-dimensional (2D) materials with MCT. The constructed MoS2/graphene/MCT vdW heterostructure synergistically addresses both the dark current and interfacial constraints. The p-n junction formed across the MoS2/graphene/MCT induces a strong built-in electric field and potential barrier, effectively suppressing dark current. Meanwhile, the interlayer graphene minimizes trap-assisted recombination and facilitates efficient photocarrier transport. Compared with MoS2/MCT and graphene/MCT heterojunctions, the MoS2/graphene/MCT vdW photodetector achieves an order-of-magnitude improvement in specific detectivity across visible to MWIR range. The optimized device architecture demonstrates a responsivity of ~0.325 A W-1 and a peak detectivity of ~8 × 1010 cm Hz1/2 W-1 under room-temperature blackbody radiation, outperforming state-of-the-art uncooled MWIR photodetectors. This work provides a feasible strategy for designing high-performance uncooled MCT-based infrared photodetectors through 2D/MCT integration.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13538648/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148880920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Remote engineering of particle-like topologies to visualise entanglement dynamics. 类粒子拓扑的远程工程以可视化纠缠动力学。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-02 DOI: 10.1038/s41377-026-02443-x

Fazilah Nothlawala, Bereneice Sephton, Pedro Ornelas, Mwezi Koni, Bruno Piccirillo, Liang Feng, Isaac Nape, Vincenzo D'Ambrosio, Andrew Forbes

{"title":"Remote engineering of particle-like topologies to visualise entanglement dynamics.","authors":"Fazilah Nothlawala, Bereneice Sephton, Pedro Ornelas, Mwezi Koni, Bruno Piccirillo, Liang Feng, Isaac Nape, Vincenzo D'Ambrosio, Andrew Forbes","doi":"10.1038/s41377-026-02443-x","DOIUrl":"10.1038/s41377-026-02443-x","url":null,"abstract":"Skyrmions are a particle-like topology with a quantized skyrmion number, realized across condensed matter and photonic platforms alike. In quantum photonics, they constitute an emerging resource, promising robust quantum information encoding, so far realized as single-photon and bi-photon entangled states. Here we report the first visualization of tripartite entanglement dynamics through topological structure using spin-skyrmion entangled states, where the topology of a single photon is remotely controlled through the spin of its entangled partner. We visualize our tripartite state theoretically by introducing the notion of a topological Bloch sphere that completely captures the entanglement and topological features of the state. By leveraging this state, we realize the first quantum multiskyrmions, comprising multiple localized skyrmions within a single structure, that emulate signatures of their magnetic counterparts. We verify this experimentally and show that traversing our topological sphere reveals entanglement-driven particle-like motion of the localized topological structures. These dynamics unveil a physical manifestation of tripartite entanglement correlations which we illustrate by example of GHZ-like states, enabling a visualization of multiple Bell states encoded within our system. Our work opens exciting possibilities for quantum sensing by mapping complex quantum channel features onto topological observables of multipartite states and offers a promising avenue for harnessing quantum topologies for multi-level encoding quantum communication schemes.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13538466/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148880971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Label-free ovarian cancer histopathological diagnosis using two-photon autofluorescence microscopy with a joint denoising and segmentation framework. 使用联合去噪和分割框架的双光子自体荧光显微镜进行无标记卵巢癌的组织病理学诊断。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-08-27 DOI: 10.1038/s41377-026-02464-6

Zhengyuan Pan, Naikun Song, Shanshan Cheng, Wen Pang, Hongen Liao, Yu Wang, Bobo Gu

{"title":"Label-free ovarian cancer histopathological diagnosis using two-photon autofluorescence microscopy with a joint denoising and segmentation framework.","authors":"Zhengyuan Pan, Naikun Song, Shanshan Cheng, Wen Pang, Hongen Liao, Yu Wang, Bobo Gu","doi":"10.1038/s41377-026-02464-6","DOIUrl":"10.1038/s41377-026-02464-6","url":null,"abstract":"Two-photon autofluorescence (TPAF) microscopy is a promising modality for rapid, label-free assessment of unstained tissue, but is fundamentally limited by the poor visibility of nuclei, which are one of the gold-standard cancer biomarkers, due to their negative contrast nature. A restoration method capable of distinguishing these signal voids from stochastic noise to render quantitative pathology is lacking. Here, we proposed a deep learning framework of AFN-DeSeg (Auto-Fluorescence Nuclei Denoising and Segmentation) to unify image denoising and nuclear segmentation via a dual-encoder architecture incorporating a DINOv3 vision transformer. By explicitly modeling detector/shot noise while optimizing for morphological fidelity, AFN-DeSeg recovered diagnostic-grade nuclear features from noisy signals. We demonstrated that AFN-DeSeg achieved a superior reconstruction fidelity compared to state-of-the-art sequential and joint denoising-segmentation pipelines and yielded a high correlation with hematoxylin and eosin (H&E) pathology in identifying key diagnostic areas of high-grade serous ovarian carcinoma. The proposed AFN-DeSeg bridges the gap between label-free TPAF imaging and H&E-based histology, establishing a computational foundation for label-free morphological pathology and toward future intraoperative optical biopsy.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13518896/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148829812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0