Light, science & applications最新文献

Sliding metasurfaces: a two-in-one meta-device for frequency filtering and beam steering. 滑动元表面：一种用于频率滤波和波束转向的二合一元设备。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-10-16 DOI: 10.1038/s41377-026-02470-8

Lei Xu, Mohsen Rahmani

引用次数: 0

Topology-optimized dielectric cavities for enhanced excitonic light emission from WSe₂. 用于增强WSe2激子发光的拓扑优化介电腔。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-10-13 DOI: 10.1038/s41377-026-02436-w

Owen Matthiessen, Brandon Triplett, Omer Yesilyurt, Davide Cassara, Karthik Pagadala, Morris M Yang, Andres E Llacsahuanga Allcca, Hamza Ather, Colton Fruhling, Abhishek Bharatbhai Solanki, Yong P Chen, Hadiseh Alaeian, Alexander V Kildishev, Vladimir M Shalaev, Federico Capasso, Alexandra Boltasseva, Vahagn Mkhitaryan

{"title":"Topology-optimized dielectric cavities for enhanced excitonic light emission from WSe2.","authors":"Owen Matthiessen, Brandon Triplett, Omer Yesilyurt, Davide Cassara, Karthik Pagadala, Morris M Yang, Andres E Llacsahuanga Allcca, Hamza Ather, Colton Fruhling, Abhishek Bharatbhai Solanki, Yong P Chen, Hadiseh Alaeian, Alexander V Kildishev, Vladimir M Shalaev, Federico Capasso, Alexandra Boltasseva, Vahagn Mkhitaryan","doi":"10.1038/s41377-026-02436-w","DOIUrl":"10.1038/s41377-026-02436-w","url":null,"abstract":"Photonic inverse design and, especially, topology optimization, enable dielectric cavities with deeply sub-diffraction mode volumes and high quality factors, thus offering a powerful platform for enhanced light-matter coupling. Here, we design and fabricate arrays of CMOS-compatible silicon cavities on sapphire with extreme subwavelength transverse mode sizes of only 30-40 nm ( <math><mi>V</mi> <mi>~</mi> <msup><mrow><mi>λ</mi></mrow> <mrow><mi>3</mi></mrow> </msup> <mo>/</mo> <mi>2500</mi></math> ). These cavities are engineered for deterministic coupling to a monolayer (or few-layer) excitonic material, producing strong near-field localization directly beneath the 2D material. Photoluminescence (PL) measurements show reproducible tenfold raw enhancement relative to bare silicon, which corresponds to a \"per-area\" normalized enhancement on the order of 103, accounting for the small area of the deeply subwavelength mode volume, consistent with numerical simulations that account for material absorption and fabrication tolerances. Furthermore, time-resolved PL measurements reveal pronounced lifetime shortening and non-exponential dynamics, indicating cavity-mediated exciton-exciton interactions. The optimized cavity geometry enhances the far-field collection efficiency and supports scalable integration with van der Waals semiconductors. Our results show that the arrays of topology-optimized dielectric cavities are a versatile, scalable platform for controlling excitonic emission and interactions, which creates new opportunities in nonlinear optics, optoelectronics, and quantum photonics.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13658778/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149166209","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

Spatiotemporal terahertz emission nanoscopy of spintronic photocurrent. 自旋电子光电流的时空太赫兹发射纳米显微镜。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-10-08 DOI: 10.1038/s41377-026-02468-2

Felix Paries, Reza Rouzegar, Jiahua Cai, Mingcong Dai, Felix Selz, Johanna Koelbel, Geoffrey Lezier, Nicolas Tiercelin, Daniel Molter, Daniel M Mittleman, Georg von Freymann, Xiaojun Wu, Tom S Seifert

{"title":"Spatiotemporal terahertz emission nanoscopy of spintronic photocurrent.","authors":"Felix Paries, Reza Rouzegar, Jiahua Cai, Mingcong Dai, Felix Selz, Johanna Koelbel, Geoffrey Lezier, Nicolas Tiercelin, Daniel Molter, Daniel M Mittleman, Georg von Freymann, Xiaojun Wu, Tom S Seifert","doi":"10.1038/s41377-026-02468-2","DOIUrl":"10.1038/s41377-026-02468-2","url":null,"abstract":"Capturing ultrafast spin and charge photocurrents on nanoscopic scales is essential for fundamental research in physics and engineering, as well as for future applications, such as novel spin-orbitronic devices. Accessing the fundamental dynamics driven by changes in electronic energy, linear momentum, and angular momentum requires probing at its native spatiotemporal scales: femtoseconds and nanometers. However, experimental approaches achieving this simultaneous resolution remain scarce and instrumentally demanding. Near-field probing offers promising platforms to combine ultrafast and nanometer resolution, typically with high sensitivity to out-of-plane electric fields. However, applying this technique to in-plane ultrafast coupled spin and charge currents is largely unexplored, although being highly application-relevant-from ultrafast spin transport in 2D materials to spin-to-charge conversion in spintronic terahertz emitters (STEs). Here, we fill this gap by performing spatiotemporal terahertz (THz) emission nanoscopy (TEN) of a photoexcited fiber-coupled STE using a scanning-probe microscope. We uncover a counterintuitive, dipolar spatial evolution of the near-field THz signal, which we show originates from the out-of-plane electric fields emerging from the in-plane spin-driven charge currents. Our findings explain why TEN is sensitive to ultrafast spin-driven in-plane charge currents, paving the way for TEN to become a fully vectorial probe for the spatiotemporal mapping of coupled nanoscale THz charge and spin dynamics.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13645728/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149128168","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

Photonic thermal management of overhead cables via high-thermal-conductivity radiative cooling. 通过高导热辐射冷却的架空电缆的光子热管理。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-10-08 DOI: 10.1038/s41377-026-02485-1

Kai Xu, Peng-Fei Cao, Jehad K El-Demellawi, Hussam Qasem, Qiaoqiang Gan

{"title":"Photonic thermal management of overhead cables via high-thermal-conductivity radiative cooling.","authors":"Kai Xu, Peng-Fei Cao, Jehad K El-Demellawi, Hussam Qasem, Qiaoqiang Gan","doi":"10.1038/s41377-026-02485-1","DOIUrl":"10.1038/s41377-026-02485-1","url":null,"abstract":"As the thermal backbone of urban energy infrastructure, transmission cables directly affect the stability and resilience of modern cities. However, high operating temperatures, driven by Joule heating and solar radiation, critically limit the ampacity of overhead transmission lines, particularly under extreme climate conditions. Such high temperatures constrain electricity delivery and pose systemic risks to essential services and long-term urban sustainability. To overcome this challenge, we adopt a high thermal conductivity radiative cooling (HTCRC) coating comprising hexagonal boron nitride (h-BN) nanoparticles embedded in a polydimethylsiloxane matrix to reduce cable temperature. Enabled by photonic thermal management, this composite structure simultaneously achieves high solar reflectance (0.92) through efficient light scattering, strong mid-infrared emissivity via polymer vibrational modes (0.95), and enhanced thermal conductivity (1.28 W m⁻¹ K⁻¹). Outdoor experiments demonstrate notable daytime cooling of simulated HTCRC-coated power cables, maintaining safe operating temperatures even under intense solar exposure. In addition, thermal modeling based on the CIGRE 601 standard reveals a 6-10% increase in ampacity across representative hot-climate cities globally. These findings highlight high thermal conductivity radiative cooling as an effective and scalable strategy to enhance urban power grid performance, improve energy delivery security, and support the development of climate-resilient cities under rapidly growing electricity demand driven by electrification and the expanding energy footprint of artificial intelligence.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13645785/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149128062","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

Photo-guided azopolymer hydrogel actuators. 光导偶氮聚合物水凝胶致动器。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-17 DOI: 10.1038/s41377-026-02411-5

David Urban, Ryota Toyohara, Marcel Rey, Daniele Martella, Dag Roar Hjelme, Andrea Alessandrini, Toshiro Ohashi, Emiliano Descrovi

{"title":"Photo-guided azopolymer hydrogel actuators.","authors":"David Urban, Ryota Toyohara, Marcel Rey, Daniele Martella, Dag Roar Hjelme, Andrea Alessandrini, Toshiro Ohashi, Emiliano Descrovi","doi":"10.1038/s41377-026-02411-5","DOIUrl":"10.1038/s41377-026-02411-5","url":null,"abstract":"Amorphous azopolymers are fascinating materials that can be deformed in arbitrary directions by light. However, they are so far used mostly for microfabrication, to anisotropically reshape dry polymer structures - essentially as a post-processing fabrication step. This is because the effect is known to be a plastic deformation, wherein the azopolymer is photo-softened and selectively reflows along the direction of the illumination polarization, owing to its polarization-dependent functional dyes. Crucially, such deformations are retained in the dark and cannot easily be overwritten by subsequent illumination. Once reflowed, there is no memory of the initial state, and sequential photo-deformations are added on top of each other. Consequently, to use the directional photo-deformation of amorphous azopolymers for dynamic and reconfigurable micro-actuators, e.g., in lab-on-chip applications, one would need to face this lack of overwritability, in addition to a lower deformability of larger structures, sticky behavior, and poor mechanical stability in water for some uses. Here, we show how azopolymer-hydrogel composites overcome these issues. By embedding azopolymer nanoparticles in hydrogel matrices, directional photo-deformation is ensured by the particles, while the compliant gel matrix neatly propagates deformations to the overall composite. Elastic restoring forces from the matrix also promote overwritability, such that microfabricated gel cubes display ample and directionally reconfigurable photo-deformations in water. Sequential illuminations with orthogonal linear polarizations produce alternating linear deformations up to twice the pristine cube side length, using illumination intervals down to five seconds. Finally, we introduce polarization-controlled, fully closeable microwells, with potential applications in biotechnology, microfluidics, and drug release.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13582930/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148983164","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

Spatiotemporal all-optical diffractive neural networks empowered by spatiotemporal light field manipulation. 时空光场操纵下的时空全光衍射神经网络。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-16 DOI: 10.1038/s41377-026-02366-7

Fu Feng, Ziyang Zhang, Dewang Huo, Xiaolong Li, Qinggang Lin, Xingyu Zhao, Guozhong Hou, Daoxin Dai, Michael G Somekh, Xiaocong Yuan

{"title":"Spatiotemporal all-optical diffractive neural networks empowered by spatiotemporal light field manipulation.","authors":"Fu Feng, Ziyang Zhang, Dewang Huo, Xiaolong Li, Qinggang Lin, Xingyu Zhao, Guozhong Hou, Daoxin Dai, Michael G Somekh, Xiaocong Yuan","doi":"10.1038/s41377-026-02366-7","DOIUrl":"10.1038/s41377-026-02366-7","url":null,"abstract":"All-optical neural networks (AONNs) offer significant potential for feature detection and pattern recognition by leveraging light-speed processing, high parallelism, and low energy consumption. However, traditional AONNs are limited to spatial light intensity distributions for both inputs and outputs, restricting network learning to the spatial-only dimension. To overcome this, we propose a novel spatiotemporal AONN architecture that integrates the time dimension with the spatial domain, enabling simultaneous modulation of light field information across both time and space. In this configuration, the output spatiotemporal light field is spatially filtered, and its temporal signals are detected using a single-pixel detector. This approach integrates the temporal dimension as a core computational resource into the network, driving a paradigm shift in AONNs from \"imaging detection\" to \"temporal analysis\", effectively overcoming the speed bottleneck caused by the bandwidth limitations of traditional 2D array detectors. Moreover, experimental studies demonstrate that the system can accelerate the processing of real-world spatiotemporal lidar signals, facilitating the real-time reconstruction of multi-target moving scenes. Our innovative spatiotemporal AONN design offers enhanced flexibility, faster processing speeds, and superior performance, paving the way for more efficient and effective optical signal processing and computing applications.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13578322/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148977163","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

Gigavoxel-scale multiple-scattering-aware lensless holotomography. 千兆像素尺度多重散射感知无透镜全息层析成像。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-16 DOI: 10.1038/s41377-026-02416-0

Mikołaj Rogalski, Julianna Winnik, Julia Dudek, Piotr Arcab, Emilia Wdowiak, Paweł Matryba, Marzena Stefaniuk, Piotr Zdańkowski, Maciej Trusiak

{"title":"Gigavoxel-scale multiple-scattering-aware lensless holotomography.","authors":"Mikołaj Rogalski, Julianna Winnik, Julia Dudek, Piotr Arcab, Emilia Wdowiak, Paweł Matryba, Marzena Stefaniuk, Piotr Zdańkowski, Maciej Trusiak","doi":"10.1038/s41377-026-02416-0","DOIUrl":"10.1038/s41377-026-02416-0","url":null,"abstract":"Holotomography (HT) has revolutionized quantitative label-free 3D imaging, yet conventional lens-based implementations are fundamentally constrained in field-of-view (FOV) and imaging depth, limiting their utility for critical high-throughput applications in material and life sciences. Lensless HT (LHT) offers a promising alternative for large-volume examination, however existing approaches fail to accurately reconstruct highly scattering samples over extended depths, which remains a critical challenge in optical imaging field. Here, we introduce a gigavoxel-scale, multiple-scattering-aware LHT with a large FOV (surpassing 0.6 cm2), millimeter-scale axial range, and pixel level (~2.4 µm) resolution. Our approach leverages a multi-wavelength, oblique-illumination hologram reconstruction and a robust, automatic illumination angle calibration, which are necessary for precise large-volume 3D holographic reconstruction. Moreover, we propose optimization-driven multi-slice tomographic framework to accurately capture multiple scattering effects outperforming first order Born/Rytov-based inversions. To rigorously validate our method, we reconstruct bespoke multi-layer two-photon polymerized test structure over a 1.7 mm imaging depth and 25 mm2 FOV, yielding an unprecedented 3D space-bandwidth product exceeding a gigavoxel level. Furthermore, we demonstrate for the first time on-chip label-free imaging of entire 500-µm-thick tissue slice of optically cleared mouse brain. With the proposed method, we aim to unlock powerful new capabilities for large-scale, quantitative, label-free 3D imaging across biomedicine, neuroscience, material sciences and beyond.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13578224/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148977226","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

Breaking the phase noise-mode purity trade-off in long-loop OEOs via cascaded zero-dispersion recirculating loops. 通过级联零色散循环回路打破长回路OEOs中的相位噪声模式纯度权衡。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-16 DOI: 10.1038/s41377-026-02413-3

Zhuoran Wang, Santiago Bernal, David V Plant, Lawrence R Chen

{"title":"Breaking the phase noise-mode purity trade-off in long-loop OEOs via cascaded zero-dispersion recirculating loops.","authors":"Zhuoran Wang, Santiago Bernal, David V Plant, Lawrence R Chen","doi":"10.1038/s41377-026-02413-3","DOIUrl":"10.1038/s41377-026-02413-3","url":null,"abstract":"Optoelectronic oscillators (OEOs) generate microwave signals with ultra-low phase noise by incorporating long optical fiber loops as high-Q energy storage elements. However, long fiber loops reduce the free spectral range, leading to dense oscillation modes and requiring ultra-narrowband filters for single-mode operation, posing a long-standing trade-off between phase noise and mode purity. Here, we present a low-cost and scalable solution that breaks this trade-off. By inserting three cascaded zero-dispersion recirculating loops (ZD-RLs) into an amplified spontaneous emission (ASE)-based OEO, robust single-mode operation is achieved without using ultra-narrowband filters. The longest ZD-RL enhances the Q-factor of the microwave photonic filter (MPF) 4100 times, while the shorter loops increase the peak spacing within the MPF's passband to enable single-mode operation. This yields a sidemode suppression ratio of 72.7 dB and phase noise of -122 dBc Hz-1 at 10 kHz offset at 10 GHz, matching commercial generators. This work shows that even low-cost broadband ASE sources can generate high-quality microwave signals, bridging the gap between laboratory OEO demonstrations and practical signal generators.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13578445/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148977152","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

Hyperspectral dual-comb compressive ghost imaging with deep learning reconstruction. 基于深度学习重建的高光谱双梳压缩鬼影成像。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-16 DOI: 10.1038/s41377-026-02417-z

Myoung-Gyun Suh, David Dang, Maodong Gao, Yucheng Jin, Dong-Chel Shin, Aggraj Gupta, Byoung Jun Park, Can Uzundal, Beyonce Hu, Wilton J M Kort-Kamp, Ho Wai Howard Lee

{"title":"Hyperspectral dual-comb compressive ghost imaging with deep learning reconstruction.","authors":"Myoung-Gyun Suh, David Dang, Maodong Gao, Yucheng Jin, Dong-Chel Shin, Aggraj Gupta, Byoung Jun Park, Can Uzundal, Beyonce Hu, Wilton J M Kort-Kamp, Ho Wai Howard Lee","doi":"10.1038/s41377-026-02417-z","DOIUrl":"10.1038/s41377-026-02417-z","url":null,"abstract":"Ghost imaging reframes image formation by replacing pixelated sensors with correlation measurements between structured illumination and a single-pixel detector, enabling capabilities that are difficult or impossible for conventional cameras. This powerful technique is inherently suited to imaging through scattering media, photon-starved scenes, and size-, access-, or cost-constrained platforms. Yet its broader adoption has been limited by a fundamental speed bottleneck: slow, sequential pattern projection via spatial light modulators or wavelength sweeps, which precludes real-time capture of dynamic scenes. Here, we overcome this fundamental bottleneck by combining dual-comb interferometry with compressive ghost imaging and deep learning reconstruction. Our method, hyperspectral dual-comb compressive ghost imaging, utilizes optical frequency combs to create wavelength-multiplexed speckle patterns that are delivered through a single-core fiber and detected by a single-pixel detector. This approach enables the simultaneous illumination and detection of hyperspectral speckle patterns without slow spatial light modulation or wavelength scanning, thereby allowing snapshot compression and the acquisition of image information using spatially non-resolved hardware. To decode the compressed signals, we develop a transformer-based deep-learning model capable of rapid, high-fidelity image reconstruction at sampling ratios below 1%. Our hardware-software co-design approach achieves high-fidelity dynamic ghost imaging at video rates and beyond while dramatically simplifying the optical front end, significantly advancing ghost imaging toward practical deployment in size- and access-constrained scenarios-from minimally invasive endomicroscopy to compact portable sensors.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13578236/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148977216","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

Narrowband, angle-stable, and highly efficient polariton organic light emitting diodes employing thermally activated delayed fluorescence. 窄带，角度稳定，高效极化有机发光二极管采用热激活延迟荧光。

IF 23.4 1区物理与天体物理

Light, science & applications Pub Date : 2026-09-14 DOI: 10.1038/s41377-026-02415-1

Andreas Mischok, Simon Lennartz, Vanessa Gruber, Francisco Tenopala-Carmona, Julia Witt, Sabina Hillebrandt, Malte C Gather

{"title":"Narrowband, angle-stable, and highly efficient polariton organic light emitting diodes employing thermally activated delayed fluorescence.","authors":"Andreas Mischok, Simon Lennartz, Vanessa Gruber, Francisco Tenopala-Carmona, Julia Witt, Sabina Hillebrandt, Malte C Gather","doi":"10.1038/s41377-026-02415-1","DOIUrl":"10.1038/s41377-026-02415-1","url":null,"abstract":"Narrowband emission is crucial for next generation optoelectronic devices to satisfy demands for high color brilliance. Microcavities can narrow the emission spectra of organic light-emitting diodes (OLEDs) through the creation of resonant standing waves, independent of emitter material, enabling flexibility in molecular and device design. However, this introduces a strong angle-dependence of the perceived emission color. Utilizing strong light-matter coupling of cavity photons with the virtually angle-independent exciton, leads to exciton-polariton emission which offers a further reduction in linewidth and suppresses angular dispersion if tuned correctly. Creating polaritons in highly efficient materials such as thermally activated delayed fluorescence (TADF) molecules is however difficult as their low oscillator strengths intrinsically disfavor light-matter interaction. Here, we present the successful combination of a highly efficient but intrinsically broadband TADF emitter, CzDBA, with a strongly absorbing assistant strong coupling material, C545T, in a modified microcavity OLED structure. Through optimizing the assistant strong coupling layer architecture and integrating it with a highly conductive p-doped hole transport layer, we demonstrate polariton OLEDs with exceptionally narrowband, angle stable emission at external quantum efficiencies above 20% for both bottom- and top-emitting designs, more than doubling the performance compared to previously reported polariton OLEDs. Importantly, the fabrication of our polariton OLED stack does not require significant structural changes relative to existing microcavity OLEDs. Combined with their high efficiency, this paves the way for future utilization of polaritonic emission in commercial display applications.","PeriodicalId":18093,"journal":{"name":"Light, science & applications","volume":"15 1","pages":""},"PeriodicalIF":23.4,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13572423/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148963560","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