Nature Photonics最新文献

{"title":"Attosecond tuning of coherent electron dynamics in doped semiconductors","authors":"Giacomo Inzani, Amir Eskandari-asl, Gian Luca Dolso, Nicola Di Palo, Bruno Moio, Alessio Lamperti, Alessandro Molle, Giovanni Isella, Jacopo Frigerio, Enrico Napolitani, Davide De Salvador, Rocio Borrego-Varillas, Mauro Nisoli, Adolfo Avella, Shunsuke A. Sato, Matteo Lucchini","doi":"10.1038/s41566-026-01936-w","DOIUrl":"10.1038/s41566-026-01936-w","url":null,"abstract":"The intentional inclusion of impurities in semiconductors, or doping, enabled the establishment of modern electronics. However, the stagnation in performance caused by the approaching ultimate limits in the miniaturization of transistors calls for a disruptive change. Ultrafast laser pulses offer a promising route to overcome this limitation by shaping the electro-optical properties of solids at unprecedented speed. Yet, the coherent interaction between intense light transients and doped semiconductors has remained unexplored, leaving unanswered fundamental questions about the feasibility of ultrafast light control. Here we show how doping affects the field-driven attosecond electron dynamics in monocrystalline germanium. By measuring the absolute delay between the transient optical features and the driving field, we first identify the origin of the sub-femtosecond response in intrinsic germanium. A systematic comparison with doped samples reveals two distinct regimes. At moderate doping levels, photoinjection dominates the dynamics. For high doping concentrations (~1020 cm−3), we unveil a striking field-driven response governed by the coherent quantum interplay between majority carriers and light-induced charges, never observed in metals with similar equilibrium conductivity. These findings establish doping as a powerful lever to engineer the petahertz optical response of semiconductors, enabling sub-femtosecond light control in conductive materials, a key prerequisite for future electro-optical technologies. Attosecond light-field control in doped germanium is demonstrated, reporting sub-cycle manipulation in conductive semiconductors, establishing doping as a route towards petahertz electronics and lightwave information processing.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 9","pages":"1013-1020"},"PeriodicalIF":38.1,"publicationDate":"2026-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41566-026-01936-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148288146","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":"A super-inert near-infrared fluorescent rotaxane dye for surgical navigation","authors":"Zi-Gang Lu, Haoran Liu, Wenjun Xu, Henglong Huang, Shubo Fan, Huaxi Wang, Xianglin Ji, Zhiwei Yin, Zhennan Peng, Qin Yang, Limin Zhang, Feiran Zhang, Xiaodong Tian, Zideng Dai, Xiaobao Cheng, Liang Cui, Jianzhang Yang, Feifei Wang, Kenneth Man-Chee Cheung, Xuesong Li, Zhenquan Lu, Hongjie Dai","doi":"10.1038/s41566-026-01945-9","DOIUrl":"10.1038/s41566-026-01945-9","url":null,"abstract":"Near-infrared (NIR) fluorescent emitters in the NIR-I (800–1,000 nm) and NIR-II (1,000–3,000 nm) windows are increasingly deployed in preclinical and clinical settings. Aqueous solubility and biocompatibility, which are crucial for their biological use, are commonly achieved by introducing multiple charged groups onto fluorophores. Yet, this method introduces undesired non-specific binding and high-cost synthesis. Here we report a near-neutral cyanine/α-cyclodextrin rotaxane dye with excellent aqueous solubility (~29 mg ml−1), negligible binding and retention by serum proteins, organs and tissues. The dye also undergoes complete renal excretion within hours after administration and exhibits superior stability. These properties arise from the encapsulation of the molecular backbone by α-cyclodextrin threading. The super-inert dye, named SID-788, affords high-performance ureter imaging in mice and pigs using NIR-II wide-field and clinically approved NIR-I laparoscopes and robotic surgical systems. Threading dye molecules through cyclodextrin provides a versatile strategy for engineering fluorescent probes with excellent biocompatibility, brightness and stability. This design enables safe dosage up to 500 times the standard imaging dose (0.5 mg kg−1), paving the way for their potential clinical translation. A threaded α-cyclodextrin rotaxane near-infrared (NIR) dye offers superior photostability, high solubility, negligible non-specific binding and complete renal clearance, enabling ureter imaging in mice and pigs via NIR-II imaging and clinical NIR-I laparoscopes.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 9","pages":"1021-1029"},"PeriodicalIF":38.1,"publicationDate":"2026-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41566-026-01945-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148288148","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":"Crystallinity-guided hybrid conversion for efficient ultrawide-bandgap perovskites in triple-junction solar cells","authors":"Yu-Duan Wang, Jingcong Hu, Ran Luo, Qilin Zhou, Shunchang Liu, Julian A. Steele, Rui Zhang, Guiseppe Portale, Eduardo Solano, Ming Lin, Tao Wang, Yi-Hsun Chen, Gordon Ochsner, Wan-Jian Yin, Xiuxiu Niu, Yuxin Yao, Ling Kai Lee, Zhenrong Jia, Xinyu Zhang, Ezra Alvianto, Xiao Guo, Zijing Dong, Xi Wang, Jinxi Chen, Yuhui Jiang, Chao Luo, Zihao Zhu, Nengxu Li, Xinyi Du, Xueling Zhang, Yifeng Chen, Jifan Gao, Yi Hou","doi":"10.1038/s41566-026-01922-2","DOIUrl":"10.1038/s41566-026-01922-2","url":null,"abstract":"Hybrid two-step deposition offers a scalable route for fabricating metal halide perovskites in tandem architectures, particularly for achieving excellent conformality on textured substrates. However, using this approach for ultrawide-bandgap perovskites (>1.85 eV) remains a fundamental challenge, due to issues of incomplete conversion and inhomogeneous crystallization. Here we reveal that the bromine/iodine (Br/I) ratio critically governs the crystallinity of the evaporated inorganic framework (IOF), which plays a key role in the halide distribution and phase quality of the perovskite film during the following hybrid conversion process. In situ grazing incidence wide-angle X-ray scattering indicates that high Br content induces a low-crystallinity IOF and enables uniform and complete incorporation of organic cations. As a result, the high Br IOF enhances photoluminescence quantum yield in the final perovskite film from 0.28% to 1.14% and enables more homogeneous halide distribution. The resulting 1.88-eV perovskite achieves a power conversion efficiency of 17.13% in single-junction devices. When further integrated as the top subcell in monolithic perovskite/perovskite/silicon triple-junction solar cells, the triple-junction device delivers a maximum efficiency of 28.71% over an active area of 1 cm2 (certified 27.53%). We expect our findings to pave the way for the fabrication of ultrawide-bandgap perovskites and to contribute to continued improvements in triple-junction solar cells. Tuning the bromine/iodine ratio in evaporated inorganic framework enables the fabrication of hybrid-deposited ultrawide-bandgap perovskites and their use in perovskite/perovskite/silicon tandem solar cells with a certified power conversion efficiency of 27.53%.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 8","pages":"883-889"},"PeriodicalIF":38.1,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148287896","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":"Spontaneous photoblinking upconversion microscopy","authors":"Maojiang Ren, Jialing Hu, Daoming Guan, Rongrong Wen, Fei Zhao, Huan Ling, Chenxing Liu, Fei Du, Wenrui Zhang, Shuqing Li, Zhilai Fang, Liangliang Liang, Yunxiang Zhang, Fuyou Li, Qian Liu","doi":"10.1038/s41566-026-01937-9","DOIUrl":"10.1038/s41566-026-01937-9","url":null,"abstract":"Super-resolution imaging has overcome the diffraction limit and enabled the nanoscale visualization of subcellular structures. However, the limited photostability of traditional fluorescent probes still poses challenges for stable, low-phototoxicity imaging. Here we introduce spontaneous photoblinking upconversion microscopy (SPUM) for super-resolution microscopy. SPUM exploits Yb3+/Ho3+-codoped upconversion nanoparticles (UCNPs) as photoblinking fluorescent emitters. We discover a spontaneous photoblinking phenomenon in such UCNPs under continuous near-infrared excitation. A Yb3+-mediated multiphoton process drives reversible transitions between emissive and dark states via defect-mediated energy trapping, producing persistent luminescent spikes that are ideal for high-precision localization. Unlike conventional photolabile fluorophores, these UCNPs resist photobleaching and enable unlimited blinking cycles for extended imaging durations. SPUM achieves a tenfold improvement in resolution, down to 35 nm for isolated emitters. We demonstrate the imaging of HeLa cell plasma membranes, as well as simultaneous live-cell tracking and the super-resolution imaging of endosomes with a spatial resolution of 30 nm for tens of minutes at a low excitation power density of 6.6 kW cm−2. Beyond improving the stability of super-resolution imaging, our findings provide a framework for engineering luminescent nanoprobes towards advanced optical imaging, nanoscale tracking and precision diagnostics in biomedical research and nanophotonics. Spontaneous photoblinking in Yb3+/Ho3+-codoped upconversion nanoparticles enables super-resolution imaging of biological cells with a spatial resolution down to 30 nm at excitation power densities of about 6 kW cm−2.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 9","pages":"1030-1039"},"PeriodicalIF":38.1,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148287899","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":"Time-varying photonics enables polarization control","authors":"Sangwan Sim","doi":"10.1038/s41566-026-01900-8","DOIUrl":"10.1038/s41566-026-01900-8","url":null,"abstract":"All-optical pumping of an isotropic aluminium zinc oxide film near its epsilon-near-zero regime enables dynamic polarization control on sub-picosecond timescales by generating birefringence, dichroism and optical activity.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 6","pages":"605-606"},"PeriodicalIF":32.9,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148167168","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":"Implosion carving shrinks 3D-printed nanostructures","authors":"Pavel Ruchka, Harald Giessen","doi":"10.1038/s41566-026-01926-y","DOIUrl":"10.1038/s41566-026-01926-y","url":null,"abstract":"Laser-patterning a swollen hydrogel followed by controlled shrinkage enables the fabrication of high-refractive-index-contrast, nanometre-scale 3D photonic structures for visible-light applications.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 6","pages":"607-608"},"PeriodicalIF":32.9,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148167170","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":"Metasurfaces bridge the terahertz gap","authors":"Sarah Elghazoly, Euclides Almeida","doi":"10.1038/s41566-026-01924-0","DOIUrl":"10.1038/s41566-026-01924-0","url":null,"abstract":"A carefully engineered nonlinear metasurface enables widely tunable, continuous-wave terahertz emission at room temperature, offering a compact and efficient route into a long-elusive spectral region.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 6","pages":"613-614"},"PeriodicalIF":32.9,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148167172","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":"Opto-magnetic hands","authors":"Jacopo Fregoni","doi":"10.1038/s41566-026-01931-1","DOIUrl":"10.1038/s41566-026-01931-1","url":null,"abstract":"","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 6","pages":"615-615"},"PeriodicalIF":32.9,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148167173","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":"Is ball lightning a relativistic soliton?","authors":"Sergei Bulanov","doi":"10.1038/s41566-026-01914-2","DOIUrl":"10.1038/s41566-026-01914-2","url":null,"abstract":"Ball lightning is not fully understood. It has been proposed that a stable lump of electromagnetic energy, known as a soliton, could be responsible, but such structures are usually microscopic. Now, high-power laser experiments have produced millimetre-scale relativistic solitons, indicating that they could indeed explain the phenomenon.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 6","pages":"611-612"},"PeriodicalIF":32.9,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148167178","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":"Watching ionization in a new light","authors":"Zhiyuan Wang, Renkai Li","doi":"10.1038/s41566-026-01923-1","DOIUrl":"10.1038/s41566-026-01923-1","url":null,"abstract":"Ultrashort MeV electron pulses are found to induce a surprisingly strong modulation in the optical transmission of common semiconductors, enabling room-temperature detection of ionizing radiation with sub-10-ps timing precision. The findings could lead to next-generation medical imaging and radiation diagnostics.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"20 6","pages":"609-610"},"PeriodicalIF":32.9,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148167171","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}