Nature Photonics最新文献

{"title":"Valleytronics on a single chip","authors":"Igor Tyulnev, Jens Biegert","doi":"10.1038/s41566-026-01975-3","DOIUrl":"10.1038/s41566-026-01975-3","url":null,"abstract":"The integration of light-programmable valley optoelectronic nanocircuits based on two-dimensional semiconductors has been limited by complex optical readout using bulk optics. Now, a chip integrates a metasurface with a waveguide and on-chip photodetectors to generate, sort, and read out optical valley signals in the near field, all at room temperature.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 8","pages":"853-854"},"PeriodicalIF":38.1,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148628734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silencing pain with infrared light","authors":"Yuxia Liu, Xiaogang Liu","doi":"10.1038/s41566-026-01970-8","DOIUrl":"10.1038/s41566-026-01970-8","url":null,"abstract":"Lanthanide upconversion nanoparticles convert near-infrared illumination into local visible emission, enabling wireless optogenetic modulation of deep pain pathways.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 8","pages":"859-860"},"PeriodicalIF":38.1,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148628733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stable low-dimensional perovskitoids for high-performance all-perovskite tandem solar cells","authors":"Guang Li, Wei Ai, Weiwei Meng, Anamika Mishra, Shiqiang Fu, Guoyi Chen, Fang Yao, Wenbo Li, Shun Zhou, Zhiqiu Yu, Haibing Wang, Jiahao Wang, Shining Zhang, Dexin Pu, Senke Cheng, Yunfei Xiong, Yong Liu, Ying Zhang, Ti Wang, Zhenhua Yu, Weijun Ke","doi":"10.1038/s41566-026-01972-6","DOIUrl":"10.1038/s41566-026-01972-6","url":null,"abstract":"Low-dimensional perovskites have been widely explored to enhance the performance of perovskite solar cells. However, conventional low-dimensional perovskites rely on amino-based cations with weak hydrogen bonds, which makes them unstable due to facile deprotonation. Here we introduce stable trimethylphosphonium-based cations featuring P-centred ligands with robust –CH3 groups. These cations exhibit significantly higher acid dissociation constants, suppressed Hofmann elimination and reduced susceptibility to bimolecular nucleophilic substitution, thereby inhibiting degradation while providing strong defect passivation. A single-crystal structural analysis revealed that these cations assemble into a one-dimensional perovskitoid architecture that surrounds and protects the inorganic Pb–I framework, thereby conferring exceptional resistance to moisture, heat and electrical bias. Consequently, single-junction 1.25-eV-bandgap Sn–Pb perovskite solar cells achieved a power conversion efficiency of 24.19%. Moreover, monolithic all-perovskite tandem devices reached a high open-circuit voltage of 2.224 V and a power conversion efficiency of 30.17% (certified 29.18%). These tandem devices retained over 90% of their initial efficiency for more than 2,000 h under continuous maximum power point tracking. Furthermore, the one-dimensional trimethylphosphonium cation-surrounded perovskitoids were used in high-performance 1.77-eV-bandgap perovskite solar cells and green perovskite light-emitting diodes, thus showing that they offer a versatile platform for efficient and stable perovskite optoelectronic devices. The introduction of trimethylphosphonium cations results in the formation of one-dimensional perovskitoid structures, enabling all-perovskite tandem solar cells with a power conversion efficiency of 30.17%, 90% of which is retained after 2,000 h of operation.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 9","pages":"1084-1091"},"PeriodicalIF":38.1,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optical–electrical skin sensing","authors":"Noriaki Horiuchi","doi":"10.1038/s41566-026-01967-3","DOIUrl":"10.1038/s41566-026-01967-3","url":null,"abstract":"","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 8","pages":"863-863"},"PeriodicalIF":38.1,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148628737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modulating p–n transition of two-dimensional perovskites for efficient and stable perovskite/Si tandem photovoltaics","authors":"Jiahao Guo, Zeyu Zhang, Zhen Jia, Fang Liu, Menglei Feng, Wenji Zhan, Haifei Wang, Xiaoyu Wang, Yide Chang, Yao Wang, Kanrui Jiang, Yuetian Chen, Yanfeng Miao, Bowei Li, Yanming Wang, Zijia Li, Yixin Zhao","doi":"10.1038/s41566-026-01979-z","DOIUrl":"10.1038/s41566-026-01979-z","url":null,"abstract":"The popular and effective top-surface mixed-dimensional heterojunction in n–i–p perovskite photovoltaics is frequently ineffective in p–i–n architectures due to the intrinsic p-type character of most reported two-dimensional (2D) or low-dimensional perovskites. Here we deploy electronic engineering to realize the p- to n-type transition in 2D Ruddlesden–Popper perovskites through molecular dipole tuning and chemically designable n-type defects. Parahalogenated piperidine derivatives induce a favourable p- to n-type transition in 2D perovskites, thereby improving energy-level alignment at the perovskite–electron transport layer interface. This tailored band alignment effectively reduces interfacial energy barriers, suppresses non-radiative recombination losses for wide-bandgap perovskites and enhances stability. Notably, p–i–n wide-bandgap (~1.68 eV) perovskite solar cells with an n-type 2D capping layer exhibit more than 100 mV enhancement in open-circuit voltage, resulting in a certified power conversion efficiency of 33.64% when integrated with industrial 110-μm-thick Czochralski heterojunction silicon. Furthermore, such monolithic perovskite/silicon tandem cells retain 92% of their initial efficiency after 1,100 h of continuous operation under maximum-power-point tracking. Our chemical design of p- to n-type transition for 2D perovskite establishes a molecular-level strategy for optimizing interfacial energetics towards high-performance perovskite/silicon tandem photovoltaics. Electronically tunable 2D perovskites optimize charge extraction in wide-bandgap solar cells, enabling perovskite/silicon tandem cells with a certified efficiency of 33.64% and excellent long-term stability.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 10","pages":"1224-1231"},"PeriodicalIF":38.1,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148612788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Large-scale compressive microscopy via diffractive multiplexing across a sensor array","authors":"Kevin C. Zhou, Chaoying Gu, Muneki Ikeda, Tina M. Hayward, Nicholas Antipa, Rajesh Menon, Roarke Horstmeyer, Saul Kato, Laura Waller","doi":"10.1038/s41566-026-01974-4","DOIUrl":"10.1038/s41566-026-01974-4","url":null,"abstract":"Microscopes face a trade-off between spatial resolution, field of view and frame rate—improving one of these properties typically requires sacrificing others, owing to the limited spatiotemporal throughput of the sensor. To overcome this, we propose a new microscope that achieves snapshot gigapixel-scale imaging with a sensor array and a diffractive optical element. We improve spatiotemporal throughput in two ways. First, we capture data with an array of 48 sensors, resulting in 48× more pixels than a single sensor. Second, we use point spread function engineering and compressive sensing algorithms to fill in the missing information from the gaps between the individual sensors in the array, further increasing the spatiotemporal throughput of the system by an additional >5.4×. The array of sensors is modelled as a single large-format ‘super sensor’, with erasures corresponding to the gap areas between sensors. The sensor array is placed at the output of a (nearly) 4f imaging system, with a diffractive optical element in the Fourier plane that generates a distributed multi-spot point spread function. This enables encoding of information from the entire super-sensor area, including the gaps. We then perform a large-scale regularized reconstruction using a direct fully shift-variant convolutional forward model, assuming that the object is sparse in some domain. Our microscope can achieve ~3 μm resolution over >5.2 cm2 field of view at up to 120 fps, culminating in an effective total spatiotemporal throughput of 25.2 billion pixels per second. We demonstrate the versatility of our microscope in two different modes: structural imaging via dark-field contrast and functional fluorescence imaging of calcium dynamics across dozens of freely moving Caenorhabditis elegans. By combining an array of 48 sensors with a diffractive mask and compressive sensing, researchers developed a 25 gigapixel-per-second computational microscope that can image at micrometre resolution across multi-centimetre areas at 120 frames per second.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 10","pages":"1240-1246"},"PeriodicalIF":38.1,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41566-026-01974-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148612597","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}

{"title":"Enhanced inverse Compton scattering via spontaneous focusing induced by a coated plasma mirror","authors":"Xichen Hu, Mingyang Zhu, Pengpei Xie, Bingjun Li, Huitong Zhai, Bingzhan Shi, Hui Zeng, Tianbing Wang, Yifei Li, Jinguang Wang, Wenchao Yan, Jie Feng, Yanfei Li, Xin Lu, Liming Chen","doi":"10.1038/s41566-026-01958-4","DOIUrl":"10.1038/s41566-026-01958-4","url":null,"abstract":"Efficient generation of high-energy γ-rays from laser–electron interactions is crucial for advancing nuclear photonics and strong-field quantum electrodynamics. However, the energy-conversion efficiency of plasma-mirror-based all-optical inverse Compton scattering has been fundamentally constrained by the limited overlap between the reflected laser pulse and the wakefield-accelerated electron beam. Here we experimentally demonstrate a coated plasma mirror that spontaneously focuses the reflected pulse, which substantially enhances the local field intensity and strongly drives nonlinear multiphoton inverse Compton scattering. Experiments show that the coating improves the laser-to-radiation energy-conversion efficiency by nearly an order of magnitude compared with uncoated mirrors, at the level of 10−4–10−3, with photon energies extending from tens to hundreds of megaelectronvolts. This simple yet robust approach overcomes the intrinsic energy-utilization limit of plasma-mirror inverse Compton scattering and offers a scalable route towards compact, high-brightness, γ-ray sources for tabletop, strong-field quantum electrodynamics studies and nuclear photonics applications. It has been proposed that coated plasma mirrors could spontaneously form a focusing structure that strengthens the reflected laser intensity to enhance the efficiency of inverse Compton scattering. Now it is demonstrated that the efficiency can reach 10−3 with photon energies extending to hundreds of megaelectronvolts at a laser power of 400 TW.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 9","pages":"1006-1012"},"PeriodicalIF":38.1,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148587275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Manipulating spin dynamics via exciton–exciton interactions for bright spin light-emitting diodes","authors":"Qi Liu, Yanlong Wang, Jing Li, Li Fang, Jin Xiao, Hongze Wang, Yanan Liu, Haofeng Zheng, Xuyu Ma, Jing Hu, Zheyu Fang, Dechun Zou, Shaocong Hou","doi":"10.1038/s41566-026-01973-5","DOIUrl":"10.1038/s41566-026-01973-5","url":null,"abstract":"Spin light-emitting diodes are promising for applications in next-generation optoelectronics, spin photonics and communication devices. However, rapid spin relaxation at room temperature causes early loss of spin polarization, constraining the asymmetric electroluminescence brightness (BCP-EL, the product of the electroluminescence dissymmetry factor and luminance) to suboptimal levels of 10–1,000 cd m−2. Here we realize a hybrid chiral perovskite heterostructure that features distributed achiral emitters spatially separated by a wide-bandgap chiral spin injector, enabling modulation of the effective contribution of exciton–exciton interactions to spin relaxation. The hybrid chiral perovskite suppresses the rapid rise of the spin-flip rate with excitation density and extends the spin-relaxation time to the nanosecond regime while preserving a photoluminescence quantum efficiency of 78%. The resulting spin light-emitting diodes deliver a BCP-EL of 13,084 cd m−2, a maximum electroluminescence dissymmetry factor of 0.2 and an extrapolated half-lifetime that exceeds 5,000 h at an initial luminance of 100 cd m−2. Kinetic analysis further reveals a crossover in the dominant determinant of emission polarization, from initial spin polarization at low excitation to spin-flip rate at high excitation. These findings provide mechanistic insights into spin dynamics, opening up opportunities for next-generation displays and quantum technologies. Modulating exciton–exciton interactions in hybrid chiral metal halide heterostructures suppresses spin relaxation, enabling spin light-emitting diodes that directly emit circularly polarized light with a dissymmetry factor of 0.2 and a half-lifetime of 5,000 h at an initial luminance of 100 cd m−2.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 10","pages":"1232-1239"},"PeriodicalIF":38.1,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148587274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Author Correction: Ternary self-assembled molecular contact for ambient-processed perovskite/silicon tandem solar cells","authors":"Gwisu Kim, Adi Prasetio, Young Im Noh, Yerang Park, Drajad Satrio Utomo, Thomas G. Allen, Randi Azmi, Nan Sun, Gaosheng Huang, Rongbo Wang, Eunseo Noh, Jongbeom Kim, Nahye Shin, Imil Fadli Imran, Seongmin Han, Yonghui Lee, Kaining Ding, Kyoung Jin Choi, Stefaan De Wolf, Sang Il Seok","doi":"10.1038/s41566-026-01988-y","DOIUrl":"10.1038/s41566-026-01988-y","url":null,"abstract":"","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 9","pages":"1116-1116"},"PeriodicalIF":38.1,"publicationDate":"2026-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41566-026-01988-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872217","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}

{"title":"Real-time optical signal equalization with a silicon photonic spatially distributed reservoir computer","authors":"Ruben Van Assche, Sarah Masaad, Emmanuel Gooskens, Stijn Sackesyn, Joris Van Kerrebrouck, Xin Yin, Peter Bienstman","doi":"10.1038/s41566-026-01968-2","DOIUrl":"10.1038/s41566-026-01968-2","url":null,"abstract":"Communication through optical fibres experiences limitations due to chromatic dispersion and nonlinear Kerr effects that degrade the signal. Mitigating these impairments is typically done using complex digital signal processing algorithms. However, these equalization methods require substantial power consumption and introduce high latencies. Photonic reservoir computing (a subfield of neural networks) offers an alternative solution—processing signals in the analogue optical domain. Here we present, to our knowledge, the first experimental demonstration of the real-time equalization of fibre distortions using a silicon photonics chip that combines the recurrent reservoir and the programmable read-out layer. We successfully equalize a 28-Gbps on–off keying signal across varying power levels and fibre lengths, even in the highly nonlinear regime. We obtain bit error rates that are orders of magnitude below previously reported optical equalization methods, reaching as low as 4 × 10−7, far below the generic forward error correction limit of 5.8 × 10−5 used in commercial Ethernet interfaces. Researchers experimentally demonstrate the real-time equalization of fibre distortions using a silicon photonics chip. The team equalizes a 28-Gbps on–off keying signal and obtains bit error rates as low as 4 × 10−7.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 9","pages":"1062-1069"},"PeriodicalIF":38.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41566-026-01968-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148522704","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}