Nature Photonics最新文献_第2页

Two in one

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-12-02 DOI: 10.1038/s41566-024-01584-y

Mohamad Hossein Idjadi, Firooz Aflatouni

引用次数: 0

Increasing diversity in conference speaker programmes

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-12-02 DOI: 10.1038/s41566-024-01580-2

Albert Polman, Emiliano Cortes, Harry A. Atwater

引用次数: 0

Discharging excitons: fast and at will

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-12-02 DOI: 10.1038/s41566-024-01576-y

Stéphane Berciaud

引用次数: 0

Terabit-scale high-fidelity diamond data storage 百万兆位级高保真钻石数据存储

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-11-27 DOI: 10.1038/s41566-024-01573-1

Jingyang Zhou, Jia Su, Junyu Guan, Yichen Yang, Wentao Ji, Mengqi Wang, Fazhan Shi, Kangwei Xia, Ya Wang, Jiangfeng Du

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Optical pumping of electronic quantum Hall states with vortex light 用涡旋光对电子量子霍尔态进行光抽运

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-11-26 DOI: 10.1038/s41566-024-01565-1

Deric Session, Mahmoud Jalali Mehrabad, Nikil Paithankar, Tobias Grass, Christian J. Eckhardt, Bin Cao, Daniel Gustavo Suárez Forero, Kevin Li, Mohammad S. Alam, Kenji Watanabe, Takashi Taniguchi, Glenn S. Solomon, Nathan Schine, Jay Sau, Roman Sordan, Mohammad Hafezi

{"title":"Optical pumping of electronic quantum Hall states with vortex light","authors":"Deric Session, Mahmoud Jalali Mehrabad, Nikil Paithankar, Tobias Grass, Christian J. Eckhardt, Bin Cao, Daniel Gustavo Suárez Forero, Kevin Li, Mohammad S. Alam, Kenji Watanabe, Takashi Taniguchi, Glenn S. Solomon, Nathan Schine, Jay Sau, Roman Sordan, Mohammad Hafezi","doi":"10.1038/s41566-024-01565-1","DOIUrl":"https://doi.org/10.1038/s41566-024-01565-1","url":null,"abstract":"A fundamental requirement for quantum technologies is the ability to coherently control the interaction between electrons and photons. However, in many scenarios involving the interaction between light and matter, the exchange of linear or angular momentum between electrons and photons is not feasible, a condition known as the dipole approximation limit. An example of a case beyond this limit that has remained experimentally elusive is when the interplay between chiral electrons and vortex light is considered, where the orbital angular momentum of light can be transferred to electrons. Here we present a mechanism for such an orbital angular momentum transfer from optical vortex beams to electronic quantum Hall states. Specifically, we identify a robust contribution to the radial photocurrent, in an annular graphene sample within the quantum Hall regime, that depends on the vorticity of light. This phenomenon can be interpreted as an optical pumping scheme, where the angular momentum of photons is transferred to electrons, generating a radial current, and the current direction is determined by the vorticity of the light. Our findings offer fundamental insights into the optical probing and manipulation of quantum coherence, with wide-ranging implications for advancing quantum coherent optoelectronics.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"80 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142712783","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

Terawatt-attosecond hard X-ray free-electron laser at high repetition rate 高重复率的兆瓦-秒硬 X 射线自由电子激光器

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-11-25 DOI: 10.1038/s41566-024-01566-0

Jiawei Yan, Weilun Qin, Ye Chen, Winfried Decking, Philipp Dijkstal, Marc Guetg, Ichiro Inoue, Naresh Kujala, Shan Liu, Tianyun Long, Najmeh Mirian, Gianluca Geloni

{"title":"Terawatt-attosecond hard X-ray free-electron laser at high repetition rate","authors":"Jiawei Yan, Weilun Qin, Ye Chen, Winfried Decking, Philipp Dijkstal, Marc Guetg, Ichiro Inoue, Naresh Kujala, Shan Liu, Tianyun Long, Najmeh Mirian, Gianluca Geloni","doi":"10.1038/s41566-024-01566-0","DOIUrl":"10.1038/s41566-024-01566-0","url":null,"abstract":"Ångstrom and attosecond are the fundamental spatiotemporal scales for electron dynamics in various materials. Although attosecond pulses with wavelengths comparable to the atomic scales are expected to be a key tool in advancing attosecond science, producing high-power hard X-ray attosecond pulses at ångstrom wavelengths remains a formidable challenge. Here, we report the generation of terawatt-scale attosecond hard X-ray pulses using a free-electron laser in a special operation mode. We achieved 9 keV single-spike X-ray pulses with a mean pulse energy of around 180 μJ, exceeding previous reports by more than an order of magnitude, and an estimated average pulse duration of 200 as at full-width at half-maximum. Exploiting the unique capability of the European XFEL, which can deliver ten pulse trains per second with each containing hundreds of pulses at megahertz repetition rates, this study demonstrates the generation of attosecond X-ray pulses at a 2.25 MHz repetition rate. These intense high-repetition-rate attosecond X-ray pulses present transformative prospects for structural and electronic damage-free X-ray measurements and attosecond time-resolved X-ray methodologies, heralding a new era in ultrafast X-ray science. Using the European XFEL free-electron laser, researchers demonstrate terawatt-scale, attosecond hard X-ray pulses. Ten pulse trains per second, each containing hundreds of pulses at megahertz repetition rates, are achieved. Such short and intense pulses at high repetition rate enable unprecedented damage-free X-ray measurements with attosecond temporal resolution.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"18 12","pages":"1293-1298"},"PeriodicalIF":32.3,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41566-024-01566-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142697110","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

Topological orbital angular momentum extraction and twofold protection of vortex transport 拓扑轨道角动量提取与涡流传输的双重保护

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-11-20 DOI: 10.1038/s41566-024-01564-2

Zhichan Hu, Domenico Bongiovanni, Ziteng Wang, Xiangdong Wang, Daohong Song, Jingjun Xu, Roberto Morandotti, Hrvoje Buljan, Zhigang Chen

{"title":"Topological orbital angular momentum extraction and twofold protection of vortex transport","authors":"Zhichan Hu, Domenico Bongiovanni, Ziteng Wang, Xiangdong Wang, Daohong Song, Jingjun Xu, Roberto Morandotti, Hrvoje Buljan, Zhigang Chen","doi":"10.1038/s41566-024-01564-2","DOIUrl":"https://doi.org/10.1038/s41566-024-01564-2","url":null,"abstract":"Vortex phenomena are ubiquitous in nature. In optics, despite the availability of numerous techniques for vortex generation and detection, topological protection of vortex transport with desired orbital angular momentum (OAM) remains a challenge. Here, by use of topological disclination, we demonstrate a scheme to confine and guide vortices featuring arbitrary high-order charges. Such a scheme relies on twofold topological protection: a non-trivial winding in momentum space due to chiral symmetry, and a non-trivial winding in real space due to the complex coupling of OAM modes across the disclination structure. We unveil a vorticity-coordinated rotational symmetry, which sets up a universal relation between the vortex topological charge and the rotational symmetry order of the system. As an example, we construct photonic disclination lattices with a single core but different Cn symmetries and achieve robust transport of an optical vortex with preserved OAM solely corresponding to one selected zero-energy vortex mode at the mid-gap. Furthermore, we show that such topological structures can be used for vortex filtering to extract a chosen OAM mode from mixed excitations. Our results illustrate the fundamental interplay of vorticity, disclination and higher-order topology, which may open a new pathway for the development of OAM-based photonic devices such as vortex guides, fibres and lasers.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"15 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142673513","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

Expanding momentum bandgaps in photonic time crystals through resonances 通过共振扩大光子时间晶体的动量带隙

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-11-12 DOI: 10.1038/s41566-024-01563-3

X. Wang, P. Garg, M. S. Mirmoosa, A. G. Lamprianidis, C. Rockstuhl, V. S. Asadchy

引用次数: 0

Author Correction: Image-guided computational holographic wavefront shaping 作者更正：图像引导的计算全息波前整形

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-11-06 DOI: 10.1038/s41566-024-01585-x

Omri Haim, Jeremy Boger-Lombard, Ori Katz

引用次数: 0

Efficient and stable perovskite-silicon tandem solar cells with copper thiocyanate-embedded perovskite on textured silicon 在纹理硅上使用硫氰酸铜嵌入包晶石的高效稳定的包晶石-硅串联太阳能电池

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-11-04 DOI: 10.1038/s41566-024-01561-5

Chenxia Kan, Pengjie Hang, Shibo Wang, Biao Li, Xuegong Yu, Xinbo Yang, Yuxin Yao, Wei Shi, Stefaan De Wolf, Jun Yin, Daoyong Zhang, Degong Ding, Cao Yu, Shaofei Yang, Jiteng Zhang, Jia Yao, Xiaohong Zhang, Deren Yang

{"title":"Efficient and stable perovskite-silicon tandem solar cells with copper thiocyanate-embedded perovskite on textured silicon","authors":"Chenxia Kan, Pengjie Hang, Shibo Wang, Biao Li, Xuegong Yu, Xinbo Yang, Yuxin Yao, Wei Shi, Stefaan De Wolf, Jun Yin, Daoyong Zhang, Degong Ding, Cao Yu, Shaofei Yang, Jiteng Zhang, Jia Yao, Xiaohong Zhang, Deren Yang","doi":"10.1038/s41566-024-01561-5","DOIUrl":"https://doi.org/10.1038/s41566-024-01561-5","url":null,"abstract":"Monolithic perovskite/silicon tandem solar cells have achieved promising performance. However, hole transport layers that are commonly used for the perovskite top cell suffer from defects, non-conformal deposition or de-wetting of the overlying perovskite on the textured silicon bottom cells. These issues detrimentally affect device reproducibility and scalability, and thus commercialization. Here we address these challenges through the co-deposition of copper(I) thiocyanate and perovskite, where effective perovskite grain boundary passivation and efficient hole collection are simultaneously achieved by the embedded copper(I) thiocyanate, which creates local hole-collecting contacts. Fabricated monolithic perovskite/silicon tandem devices achieve a certified power conversion efficiency of 31.46% for 1 cm2 area devices. Aside from good reproducibility and scalability, our tandem cells exhibit excellent stability, maintaining 93.8% of their initial power conversion efficiency after about 1,200 h of maximum power point tracking at 45 °C, and 90.2% after over 1,000 h of damp-heat testing at 85 °C and 85% relative humidity.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"17 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142574314","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