Nature Photonics最新文献

Wide-field spectroscopic imaging of optical activity 光学活性的宽视场光谱成像

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-28 DOI: 10.1038/s41566-025-01722-0

Rebecca Büchner, Jose García-Guirado, Jaime Ortega Arroyo, Romain Quidant

{"title":"Wide-field spectroscopic imaging of optical activity","authors":"Rebecca Büchner, Jose García-Guirado, Jaime Ortega Arroyo, Romain Quidant","doi":"10.1038/s41566-025-01722-0","DOIUrl":"https://doi.org/10.1038/s41566-025-01722-0","url":null,"abstract":"Optical activity spectroscopy techniques, such as circular dichroism and optical rotatory dispersion, are essential for investigating the chiral properties of molecules and materials. However, current methods often struggle to analyse heterogeneous and spatially varying chiral samples. On one hand, spectroscopic approaches, although sensitive, often require large sample volumes and produce ensemble-averaged data. On the other hand, chiral imaging delivers spatial resolution at the expense of time-consuming confocal scanning and complex instrumentation. Addressing this gap, we introduce a platform for wide-field, spectrally resolved optical activity imaging. Using polarization-sensitive off-axis holography to simultaneously capture left- and right-circularly polarized components, our system allows the single-shot retrieval of circular dichroism and optical rotatory dispersion images, as well as eliminating artefacts caused by linear anisotropies. Our results are not only consistent with traditional circular dichroism spectroscopy but also demonstrate the ability to spatially resolve local chirality variations lost by ensemble averaging, including enantiomeric excess. This platform holds great promise for analysing complex biological and material samples, expanding the scope of chiral characterization.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"26 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144715275","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}

引用次数: 0

Synthetic aperture waveguide holography for compact mixed-reality displays with large étendue 小型混合现实显示器的合成孔径波导全息技术

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-28 DOI: 10.1038/s41566-025-01718-w

Suyeon Choi, Changwon Jang, Douglas Lanman, Gordon Wetzstein

{"title":"Synthetic aperture waveguide holography for compact mixed-reality displays with large étendue","authors":"Suyeon Choi, Changwon Jang, Douglas Lanman, Gordon Wetzstein","doi":"10.1038/s41566-025-01718-w","DOIUrl":"https://doi.org/10.1038/s41566-025-01718-w","url":null,"abstract":"Mixed-reality (MR) display systems enable transformative user experiences across various domains, including communication, education, training and entertainment. To create an immersive and accessible experience, the display engine of the MR display must project perceptually realistic 3D images over a wide field of view observable from a large range of possible pupil positions, that is, it must support a large étendue. Current MR displays, however, fall short in delivering these capabilities in a compact device form factor. Here we present an ultra-thin MR display design that overcomes these challenges using a unique combination of waveguide holography and artificial intelligence (AI)-driven holography algorithms. One of the key innovations of our display system is a compact, custom-designed waveguide for holographic near-eye displays that supports a large effective étendue. This is co-designed with an AI-based algorithmic framework combining an implicit large-étendue waveguide model, an efficient wave propagation model for partially coherent mutual intensity and a computer-generated holography framework. Together, our unique co-design of a waveguide holography system and AI-driven holographic algorithms represents an important advancement in creating visually comfortable and perceptually realistic 3D MR experiences in a compact wearable device.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"63 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144715276","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}

引用次数: 0

High-efficiency perovskite solar cells enabled by suppressing intermolecular aggregation in hole-selective contacts 高效钙钛矿太阳能电池通过抑制分子间聚集在孔选择接触

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-21 DOI: 10.1038/s41566-025-01725-x

Danpeng Gao, Bo Li, Xianglang Sun, Qi Liu, Chunlei Zhang, Liangchen Qian, Zexin Yu, Xintong Li, Xin Wu, Baoze Liu, Ning Wang, Francesco Vanin, Xinxin Xia, Jie Gong, Nan Li, Xiao Cheng Zeng, Zhong’an Li, Zonglong Zhu

{"title":"High-efficiency perovskite solar cells enabled by suppressing intermolecular aggregation in hole-selective contacts","authors":"Danpeng Gao, Bo Li, Xianglang Sun, Qi Liu, Chunlei Zhang, Liangchen Qian, Zexin Yu, Xintong Li, Xin Wu, Baoze Liu, Ning Wang, Francesco Vanin, Xinxin Xia, Jie Gong, Nan Li, Xiao Cheng Zeng, Zhong’an Li, Zonglong Zhu","doi":"10.1038/s41566-025-01725-x","DOIUrl":"https://doi.org/10.1038/s41566-025-01725-x","url":null,"abstract":"Hole-selective contacts are crucial for improving the performance of perovskite solar cells, but their optimization still faces obstacles. For example, it is challenging to achieve uniform deposition and prevent aggregation of small-molecule materials during solution processing, negatively impacting cell efficiency, reproducibility and stability. Here we co-deposit a new p-type small molecule (D4PA) with the perovskite film. The intramolecular C–C coupling in D4PA enables strong multi-anchoring interactions with both the perovskite and substrate, enhancing interfacial charge transport and inhibiting defect formation within the perovskite layer. The C–C coupling also introduces steric hindrance, creating twisted molecular conformations that effectively prevent molecular aggregation, extend the solution processability and increase device reproducibility. Our devices exhibit a certified power conversion efficiency of 26.72% and a certified maximum power point tracking efficiency of 26.14% in small-area devices. A power conversion efficiency of 23.37% and a certified maximum power point tracking efficiency of 22.66% are achieved in a mini-module with an effective area of 10.86 cm2. The devices maintain over 97.2% of their initial efficiency after 2,500 h of continuous operation at their maximum power point.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"37 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144669620","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}

引用次数: 0

Author Correction: Ångström-tunable polarization-resolved solid-state photon sources 作者更正：Ångström-tunable偏振分辨固态光子源

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-21 DOI: 10.1038/s41566-025-01738-6

Yinhui Kan, Paul C. V. Thrane, Xujing Liu, Shailesh Kumar, Chao Meng, Radu Malureanu, Sergey I. Bozhevolnyi

引用次数: 0

Publisher Correction: Van der Waals waveguide quantum electrodynamics probed by infrared nano-photoluminescence 出版者更正：范德华波导量子电动力学探测的红外纳米光致发光

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-21 DOI: 10.1038/s41566-025-01743-9

S. L. Moore, H. Y. Lee, N. Rivera, Y. Karube, M. Ziffer, E. S. Yanev, T. P. Darlington, A. J. Sternbach, M. A. Holbrook, J. Pack, X. Xu, C. R. Dean, J. S. Owen, P. J. Schuck, M. Delor, X. Y. Zhu, J. Hone, D. N. Basov

引用次数: 0

Local lattice softening in semiconductor quantum dots for efficient white light-emitting diodes 高效白光发光二极管用半导体量子点的局部点阵软化

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-16 DOI: 10.1038/s41566-025-01716-y

Sheng Wang, Chao Wang, Yuankun Wang, Tengfei Long, Zirui Liu, Lin Wang, Haihui Wang, Qianqian Wu, Jianhua Zhang, Biwen Li, Linjie Dai, Sijun Seong, Jiayi Chen, Guangjiu Zhao, Guohua Jia, Haoxiang Sun, Wei Zhang, Jun Chen, Xue Bai, Jiaqi Zhang, Samuel D. Stranks, Richard H. Friend, Xiwen Gong, Xuyong Yang

{"title":"Local lattice softening in semiconductor quantum dots for efficient white light-emitting diodes","authors":"Sheng Wang, Chao Wang, Yuankun Wang, Tengfei Long, Zirui Liu, Lin Wang, Haihui Wang, Qianqian Wu, Jianhua Zhang, Biwen Li, Linjie Dai, Sijun Seong, Jiayi Chen, Guangjiu Zhao, Guohua Jia, Haoxiang Sun, Wei Zhang, Jun Chen, Xue Bai, Jiaqi Zhang, Samuel D. Stranks, Richard H. Friend, Xiwen Gong, Xuyong Yang","doi":"10.1038/s41566-025-01716-y","DOIUrl":"https://doi.org/10.1038/s41566-025-01716-y","url":null,"abstract":"White light-emitting diodes based on single-component quantum dots (sc-WQLEDs) have gained great attention owing to their low operating voltage and the high spectral stability of their emission. However, their performance presently lags far behind that of state-of-the-art white organic LEDs owing to a lack of efficient white quantum dot emitters. Creating self-trapped excitons in semiconductor quantum dots is a promising approach to producing broadband white emission. However, such emitters generally suffer from poor charge transport and structural instability. Here we accomplish controllable synthesis of core/shell structured ZnSe/ZnS quantum dots with efficient white emission through combining a sharp excitonic blue emission with a broadband yellow self-trapped exciton emission owing to local lattice softening of ZnSe cores by heterovalent doping with halogen ions. We reveal that the self-trapped excitons confined in the surrounding ZnSe covalent-bond matrix can generate strong and stable yellow emission with minimal reduction of the excitonic blue emission and charge transport capability of ZnSe. On the basis of this approach, we demonstrate highly efficient, heavy-metal-free WQLEDs with a maximum external quantum efficiency up to 15% (average 10.5 ± 2.6%), a luminance of over 26,000 cd m−2 as well as exceptional device operational lifetime with T50 exceeding 2,500 h at an initial luminance of 100 cd m−2.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"102 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144640413","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}

引用次数: 0

Tunable coherent mixed-dimensional perovskite heterojunctions and quantum wells grown from solution 可调谐相干混合维钙钛矿异质结和从溶液中生长的量子阱

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-16 DOI: 10.1038/s41566-025-01723-z

Zhifang Shi, Yeming Xian, Xiaoming Wang, Haoyang Jiao, Hua Zhou, Yugang Zhang, Zhenyi Ni, Yanfa Yan, Jinsong Huang

{"title":"Tunable coherent mixed-dimensional perovskite heterojunctions and quantum wells grown from solution","authors":"Zhifang Shi, Yeming Xian, Xiaoming Wang, Haoyang Jiao, Hua Zhou, Yugang Zhang, Zhenyi Ni, Yanfa Yan, Jinsong Huang","doi":"10.1038/s41566-025-01723-z","DOIUrl":"https://doi.org/10.1038/s41566-025-01723-z","url":null,"abstract":"Coherent heterojunctions, quantum wells and multiple quantum wells are needed for high-performance devices; these are generally grown via a dedicated vapour phase epitaxy process. Here we demonstrate the growth of coherent perovskite heterojunctions and quantum wells made of mixed-dimensional perovskites using a solution process. By exploiting the solubility difference of methylammonium (MA+) and 4-(aminomethyl)piperidinium (4AMP2+), we assemble layered perovskites with different layer numbers. The resulting 4AMP-MAn–1PbnI3n+1 materials each with different layer numbers or bandgaps form quantum wells. Heterojunctions and quantum wells made of 4AMP-MA2Pb3I10 (n = 3) and 4AMP-MAPb2I7 (n = 2) with various barrier thickness are tailored by the solution temperature profile during crystal growth. Multiple quantum wells have been formed by cycling temperature profiles. The planar heterojunction and quantum wells have lattice matching without interfacial defects, and exhibit strong thermal stability. Type I band alignment at the n = 2/n = 3 heterojunction is confirmed by both computation and optical studies. This study opens a new direction for the development of sophisticated perovskite heterojunction and quantum well devices.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"108 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144640417","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}

引用次数: 0

Waveform-controlled field synthesis of sub-two-cycle pulses at the 100 TW peak power level 100 TW峰值功率下亚两周脉冲的波形控制场合成

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-10 DOI: 10.1038/s41566-025-01720-2

Laszlo Veisz, Peter Fischer, Sajjad Vardast, Fritz Schnur, Alexander Muschet, Aitor De Andres, Sreehari Kaniyeri, Hang Li, Roushdey Salh, Kárpát Ferencz, Gergely Norbert Nagy, Subhendu Kahaly

{"title":"Waveform-controlled field synthesis of sub-two-cycle pulses at the 100 TW peak power level","authors":"Laszlo Veisz, Peter Fischer, Sajjad Vardast, Fritz Schnur, Alexander Muschet, Aitor De Andres, Sreehari Kaniyeri, Hang Li, Roushdey Salh, Kárpát Ferencz, Gergely Norbert Nagy, Subhendu Kahaly","doi":"10.1038/s41566-025-01720-2","DOIUrl":"https://doi.org/10.1038/s41566-025-01720-2","url":null,"abstract":"Ultrahigh peak-power laser systems with pulse durations of tens of femtoseconds are widely used as drivers for compact sources of particles and secondary radiation. Conversely, lasers with shorter (a few femtoseconds) pulse durations and lower peak powers enable the generation of isolated attosecond light pulses to study nature with unparalleled temporal resolution. Here we report an enhanced optical parametric chirped pulse amplifier system that produces light pulses with a peak power of about 100 TW and a pulse duration as short as 4.3 fs with full waveform control. Coherent field synthesis generates a broadband spectrum, spanning from the visible to the near infrared, through three cascaded amplification stages, each housing two optical parametric amplifiers that sequentially boost complementary spectral regions. The resulting light transients are waveform-stabilized to <300 mrad and focused to an intensity of 1021 W cm−2 and exhibit an outstanding high dynamic range in temporal contrast. Together, these characteristics render the system well suited for demanding relativistic laser–plasma experiments. Utilizing temporal super-resolution, the pulses are shortened to sub-4-fs duration. This platform is dedicated to advancing the frontiers of attosecond electron and X-ray sources.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"28 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144593853","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}

引用次数: 0

Stimulated Brillouin scattering microscopy with a high-peak-power 780-nm pulsed laser system 峰值功率780 nm脉冲激光系统的受激布里渊散射显微镜

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-10 DOI: 10.1038/s41566-025-01697-y

Yun Qi, Shuai Yao, Zi-Xuan Du, Jin-Rui Zhang, Cuiyun Zhou, Xiaohu Fu, Huan Li, Ting Mi, Yu-Han Chen, Yu-Fan Wang, Yun Luo, Xuyan He, Jing Nan, Yanjie Zhang, Lin Sun, Peng Xia, Shi-Qing Cai, Jiu-Lin Du, Jingjing Xie, Wei-Biao Chen, Fan Yang

{"title":"Stimulated Brillouin scattering microscopy with a high-peak-power 780-nm pulsed laser system","authors":"Yun Qi, Shuai Yao, Zi-Xuan Du, Jin-Rui Zhang, Cuiyun Zhou, Xiaohu Fu, Huan Li, Ting Mi, Yu-Han Chen, Yu-Fan Wang, Yun Luo, Xuyan He, Jing Nan, Yanjie Zhang, Lin Sun, Peng Xia, Shi-Qing Cai, Jiu-Lin Du, Jingjing Xie, Wei-Biao Chen, Fan Yang","doi":"10.1038/s41566-025-01697-y","DOIUrl":"https://doi.org/10.1038/s41566-025-01697-y","url":null,"abstract":"Stimulated Brillouin scattering microscopy enables all-optical, non-contact, high-spatial-resolution mechanical imaging with high specificity. Recent advances in quasi-continuous-wave stimulated Brillouin scattering have substantially reduced the required laser power. However, the pixel dwell time remains limited to 20 ms, and further reductions without compromising resolution, precision or specificity are challenging. Here we address this limitation by developing a frequency-doubled pulsed fibre laser system operating at 780 nm, delivering a peak power of 267 W. To mitigate the high-intensity noise intrinsic to amplified fibre lasers, we implement a high-performance noise cancellation system based on auto-balanced detection. As a result, we achieve a pixel dwell time as short as 200 µs for full spectral acquisition, which is two orders of magnitude faster than previous stimulated Brillouin scattering implementations, and maintain an average power of 30 mW. We demonstrate high-speed, high-specificity and high-sensitivity Brillouin imaging of live single cells, organoids, zebrafish larvae and ovarian follicles with subcellular details. Furthermore, we capture the in vivo biomechanical dynamics of rapid cell divisions during the early embryo development of Caenorhabditis elegans in a living worm.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"10 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144593854","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}

引用次数: 0

High-performance deep-blue phosphorescent organic light-emitting diodes enabled by a platinum(ii) emitter 高性能深蓝色磷光有机发光二极管，由铂（ii）发射器启用

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2025-07-09 DOI: 10.1038/s41566-025-01706-0

Guijie Li, Qingshan Chu, Huanhuan Yao, Kongwu Wu, Yuan-Bin She

{"title":"High-performance deep-blue phosphorescent organic light-emitting diodes enabled by a platinum(ii) emitter","authors":"Guijie Li, Qingshan Chu, Huanhuan Yao, Kongwu Wu, Yuan-Bin She","doi":"10.1038/s41566-025-01706-0","DOIUrl":"https://doi.org/10.1038/s41566-025-01706-0","url":null,"abstract":"Organic light-emitting diodes (OLEDs) represent a revolutionary technology that has been successfully commercialized in full-colour displays. However, this technology is still severely limited by the low efficiency of blue OLEDs. Developing high-performance blue OLEDs is a major challenge, and emitters are critical for overcoming this issue. Here we design phosphorescent platinum(ii) complexes with a locally excited-dominated character and a rigid three-dimensional geometry to suppress intermolecular interactions, enabling robust deep-blue devices. Bottom-emitting OLEDs emit at 464 nm with a full-width at half-maximum of 17.1 nm and high external quantum efficiencies of 30.8%, 26.4% and 23.2% at 1,000 cd m−2, 5,000 cd m−2 and 10,000 cd m−2, respectively. Top-emitting devices achieve enhanced colour purity (full-width at half-maximum of 13.1 nm, CIEy = 0.062), a low running voltage (3.9 V at 1,000 cd m−2) and a maximum blue index of 468 cd A−1 CIEy−1. These OLEDs also exhibit a long half-lifetime of 670 h at an initial luminance of 1,000 cd m−2. This study provides an important strategy to develop high-performance deep-blue phosphorescent OLEDs.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"29 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144586405","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}

引用次数: 0