Nature Photonics最新文献_第4页

A technology friendly photon condensate 技术友好型光子凝聚物

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-10-03 DOI: 10.1038/s41566-024-01533-9

Alejandro Fainstein, Gonzalo Usaj

引用次数: 0

Laser nanoprinting of metals 激光纳米打印金属

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-10-03 DOI: 10.1038/s41566-024-01535-7

Oliver Graydon

引用次数: 0

Revealing the unseeable by digital clearing 用数字清除技术揭示不可见光

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-10-03 DOI: 10.1038/s41566-024-01534-8

Thomas Chaigne

引用次数: 0

Low-coherence light enhances photonic computing 低相干光增强光子计算能力

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-10-03 DOI: 10.1038/s41566-024-01536-6

Giampaolo Pitruzzello

引用次数: 0

In situ energetics modulation enables high-efficiency and stable inverted perovskite solar cells 原位能量调节实现高效稳定的倒置过氧化物太阳能电池

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-10-02 DOI: 10.1038/s41566-024-01542-8

Hongwei Zhu, Bingyao Shao, Zhongjin Shen, Shuai You, Jun Yin, Nimer Wehbe, Lijie Wang, Xin Song, Mutalifu Abulikemu, Ali Basaheeh, Aqil Jamal, Issam Gereige, Marina Freitag, Omar F. Mohammed, Kai Zhu, Osman M. Bakr

{"title":"In situ energetics modulation enables high-efficiency and stable inverted perovskite solar cells","authors":"Hongwei Zhu, Bingyao Shao, Zhongjin Shen, Shuai You, Jun Yin, Nimer Wehbe, Lijie Wang, Xin Song, Mutalifu Abulikemu, Ali Basaheeh, Aqil Jamal, Issam Gereige, Marina Freitag, Omar F. Mohammed, Kai Zhu, Osman M. Bakr","doi":"10.1038/s41566-024-01542-8","DOIUrl":"https://doi.org/10.1038/s41566-024-01542-8","url":null,"abstract":"In contrast to conventional (n–i–p) perovskite solar cells (PSCs), inverted (p–i–n) PSCs offer enhanced stability and integrability with tandem solar cell architectures, which have garnered increasing interest. However, p–i–n cells suffer from energy level misalignment with transport layers, imbalanced transport of photo-generated electrons and holes, and significant defects with the perovskite films. Here we introduce tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane (3TPYMB), a nonionic n-type molecule that, through hydrogen bonding and Lewis acid–base reactions with perovskite surfaces or grain boundaries, enables in situ modulation of perovskite energetics, effectively mitigating the key challenges of p–i–n PSCs. The p–i–n PSCs incorporating 3TPYMB achieve a certified quasi-steady-state power conversion efficiency of 24.55 ± 0.33%, with a reverse scan efficiency of 25.58%. They also exhibit exceptional stability, with unencapsulated devices retaining 97.8% of their initial efficiency after 1,800 h of continuous operation at maximum power point under N2 atmosphere, 1 sun illumination and 60 °C conditions.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"42 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362930","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

Versatile optical frequency division with Kerr-induced synchronization at tunable microcomb synthetic dispersive waves 在可调谐微蜂窝合成色散波上进行具有凯尔诱导同步功能的多功能光分频

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-10-02 DOI: 10.1038/s41566-024-01540-w

Grégory Moille, Pradyoth Shandilya, Alioune Niang, Curtis Menyuk, Gary Carter, Kartik Srinivasan

{"title":"Versatile optical frequency division with Kerr-induced synchronization at tunable microcomb synthetic dispersive waves","authors":"Grégory Moille, Pradyoth Shandilya, Alioune Niang, Curtis Menyuk, Gary Carter, Kartik Srinivasan","doi":"10.1038/s41566-024-01540-w","DOIUrl":"https://doi.org/10.1038/s41566-024-01540-w","url":null,"abstract":"Kerr-induced synchronization (KIS) provides a key tool for the control and stabilization of a dissipative Kerr soliton (DKS) frequency comb, enabled by the capture of a comb tooth by an injected reference laser. Efficient KIS relies on large locking bandwidth, meaning both the comb tooth and intracavity reference power need to be sufficiently large. Although KIS can theoretically occur at any comb tooth, large modal separations from the main pump to achieve large optical frequency division factors are often difficult or unfeasible due to cavity dispersion. While tailoring the dispersion to generate dispersive waves can support on-resonance KIS far from the main pump, this approach restricts synchronization to specific wavelengths. Here we demonstrate an alternative KIS method that allows efficient synchronization at arbitrary modes by multi-pumping a microresonator. This creates a multicolour DKS with a main and an auxiliary comb, the latter enabling the creation of a synthetic dispersive wave. As cross-phase modulation leads to a unique group velocity for both the soliton comb and the auxiliary comb, repetition rate disciplining of the auxiliary comb through KIS automatically controls the DKS microcomb. We explore this colour-KIS phenomenon theoretically and experimentally, showing control and tuning of the soliton microcomb repetition rate, resulting in optical frequency division independent of the main pump noise properties.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"57 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362931","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

Sub-Doppler spectroscopy of quantum systems through nanophotonic spectral translation of electro-optic light 通过电光的纳米光子光谱转换实现量子系统的亚多普勒光谱学

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-10-02 DOI: 10.1038/s41566-024-01532-w

David A. Long, Jordan R. Stone, Yi Sun, Daron Westly, Kartik Srinivasan

{"title":"Sub-Doppler spectroscopy of quantum systems through nanophotonic spectral translation of electro-optic light","authors":"David A. Long, Jordan R. Stone, Yi Sun, Daron Westly, Kartik Srinivasan","doi":"10.1038/s41566-024-01532-w","DOIUrl":"https://doi.org/10.1038/s41566-024-01532-w","url":null,"abstract":"An outstanding challenge for deployable quantum technologies is high-resolution laser spectroscopy at the specific wavelengths of ultranarrow transitions in atomic and solid-state quantum systems. Here we demonstrate a highly flexible approach to high-resolution spectroscopy for quantum technologies across a broad range of wavelengths, through the synergistic combination of fine-tooth electro-optic frequency combs and efficient Kerr nonlinear nanophotonics. We show that such fine-tooth combs, which provide simultaneous high spectral and temporal resolution in atomic spectroscopy, undergo coherent spectral translation with essentially no efficiency loss through third-order optical parametric oscillation (OPO) in a silicon-nitride microring. This enables nearly a million comb pump teeth, separated by a 1 kHz spacing, to be translated onto signal and idler beams that can be located across a broad range of wavelengths in the visible and short near-infrared. The generated wavelengths are subject to OPO phase and frequency-matching conditions that are highly controllable through nanophotonic dispersion engineering, and in the current implementation span between 589 and 1,150 nm, with both the electro-optic comb generation process and its spectral translation not introducing appreciable broadening to the pump laser linewidth. We further demonstrate the application of this approach to quantum systems by performing sub-Doppler spectroscopy of the hyperfine transitions of Cs atomic vapour with our electro-optically driven Kerr nonlinear light source. The generality, robustness and agility of our approach, as well as its compatibility with photonic integration, are expected to lead to its widespread applications in areas such as quantum sensing, telecommunications and atomic clocks.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"202 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142362910","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

Free-form dual-comb spectroscopy for compressive sensing and imaging 用于压缩传感和成像的自由形式双梳光谱学

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-30 DOI: 10.1038/s41566-024-01530-y

Fabrizio R. Giorgetta, Simon Potvin, Jean-Daniel Deschênes, Ian Coddington, Nathan R. Newbury, Esther Baumann

{"title":"Free-form dual-comb spectroscopy for compressive sensing and imaging","authors":"Fabrizio R. Giorgetta, Simon Potvin, Jean-Daniel Deschênes, Ian Coddington, Nathan R. Newbury, Esther Baumann","doi":"10.1038/s41566-024-01530-y","DOIUrl":"https://doi.org/10.1038/s41566-024-01530-y","url":null,"abstract":"Time-programmable frequency combs enable new measurement paradigms for dual-comb spectroscopy (DCS) that are free of many of the constraints found in traditional DCS. As opposed to fixing the repetition rate offset between combs, free-form DCS uses full control of the temporal offset between the dual-comb pulse trains, thereby enabling user-selectable sampling patterns that optimize resolution, signal-to-noise ratio, species selectivity or acquisition time. Here we show that free-form DCS enables compressive sensing and demonstrate compression factors of up to 155, with an up to 60-fold reduction in acquisition time, while maintaining identical spectral point spacing and comparable signal-to-noise ratio to traditional DCS. We also demonstrate molecular recurrence sampling (an extreme case of compressive sensing) for methane detection at 22× higher sensitivity than traditional DCS at the cost of requiring a priori knowledge of the probed species. Finally, free-form DCS can enable fast species-selective imaging since its radio frequency signal is narrow band, in contrast to traditional DCS, and therefore compatible with limited camera read out rates. We demonstrate imaging of methane plumes across a 128 × 64-pixel focal plane array at a 250 Hz rate. In the future, this flexible free-form approach can enable applications ranging from rapid open-path spectroscopy to nonlinear multidimensional comb-based spectroscopy.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"37 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142329678","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

Highly efficient circularly polarized near-infrared phosphorescence in both solution and aggregate 溶液和聚合体中的高效圆偏振近红外磷光体

IF 35 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-30 DOI: 10.1038/s41566-024-01538-4

Dan Liu, Wen-Jin Wang, Parvej Alam, Zhan Yang, Kaiwen Wu, Lixun Zhu, Yu Xiong, Shuai Chang, Yong Liu, Bo Wu, Qian Wu, Zijie Qiu, Zheng Zhao, Ben Zhong Tang

{"title":"Highly efficient circularly polarized near-infrared phosphorescence in both solution and aggregate","authors":"Dan Liu, Wen-Jin Wang, Parvej Alam, Zhan Yang, Kaiwen Wu, Lixun Zhu, Yu Xiong, Shuai Chang, Yong Liu, Bo Wu, Qian Wu, Zijie Qiu, Zheng Zhao, Ben Zhong Tang","doi":"10.1038/s41566-024-01538-4","DOIUrl":"https://doi.org/10.1038/s41566-024-01538-4","url":null,"abstract":"Circularly polarized phosphorescence (CPP) is a spin-forbidden radiative process, and its underlying mechanism is not comprehensively understood, mainly due to the limited examples of efficient triplet emission from small chiral organic molecules with well-defined structures. Here we investigate a pair of chiral enantiomers, R- and S-BBTI, that feature highly distorted spiral ring-locked heteroaromatics with heavy iodine atoms. These chiral molecules are found to exhibit large dissymmetry factors up to 0.013 and emit near-infrared CPP with an efficiency of 4.2% and a lifetime of 119 μs in dimethyl sulfoxide solution excited by ultraviolet irradiation. Their crystals show efficient CPP with 7.0% quantum efficiency and a lifetime of 166 μs. Extensive experimental chiroptical investigations combined with theoretical calculations reveal an efficient spin-flip process that modulates the electron and magnetic transition dipole moments to enhance CPP performance. Moreover, the phosphorescence of R/S-BBTI is oxygen-sensitive and photoactivatable in dimethyl sulfoxide. Therefore, R/S-BBTI can be applied for hypoxia imaging in cells and tumours, expanding the application scope of CPP materials.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"63 1","pages":""},"PeriodicalIF":35.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142329718","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

Advances in quantum imaging 量子成像技术的进步

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-30 DOI: 10.1038/s41566-024-01516-w

Hugo Defienne, Warwick P. Bowen, Maria Chekhova, Gabriela Barreto Lemos, Dan Oron, Sven Ramelow, Nicolas Treps, Daniele Faccio

{"title":"Advances in quantum imaging","authors":"Hugo Defienne, Warwick P. Bowen, Maria Chekhova, Gabriela Barreto Lemos, Dan Oron, Sven Ramelow, Nicolas Treps, Daniele Faccio","doi":"10.1038/s41566-024-01516-w","DOIUrl":"10.1038/s41566-024-01516-w","url":null,"abstract":"Modern imaging technologies are widely based on classical principles of light or electromagnetic wave propagation. They can be remarkably sophisticated, with recent successes ranging from single-molecule microscopy to imaging far-distant galaxies. However, new imaging technologies based on quantum principles are gradually emerging. They can either surpass classical approaches or provide novel imaging capabilities that would not otherwise be possible. Here we provide an overview of the most recently developed quantum imaging systems, highlighting the nonclassical properties of sources, such as bright squeezed light, entangled photons and single-photon emitters that enable their functionality. We outline potential upcoming trends and the associated challenges, all driven by a central enquiry, which is to understand whether quantum light can make visible the invisible. This Review provides an overview of the most recently developed quantum imaging systems, highlighting the nonclassical properties of sources, such as bright squeezed light, entangled photons and single-photon emitters that enable their functionality.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"18 10","pages":"1024-1036"},"PeriodicalIF":32.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142329717","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