Laser & Photonics Reviews最新文献

{"title":"Managing Surface Reconstruction Enables Bright, Stable, and Cost-Performance Perovskite Light-Emitting Diodes","authors":"Yanyu Deng, Zhiguo Zhang, Guanhua Ren, Wenwen Liu, Zhuowei Li, Chunyu Liu, Zhiqi Li, Wenbin Guo","doi":"10.1002/lpor.202401817","DOIUrl":"https://doi.org/10.1002/lpor.202401817","url":null,"abstract":"Organic–inorganic hybrid perovskite is emerging as one of the most promising light source technologies. Various interfacial agents have been widely used on perovskite surfaces, aiming to achieve high brightness and stability in perovskite light-emitting diodes (PeLEDs) by eliminating the adverse effects of excess organic halide residues. However, there are only scattered reports available on the unreacted halide distribution, interfacial solvent effect, and cost-performance for surface engineering, calling for low-cost strategies to address these challenges. Here, the distribution of unreacted halide species is visualized and the effect of solvent-dominated surface reconstruction on performance is pointed. Experimental and computational studies reveal that the surface lattice distortion caused by the interaction between solvents and crystals increases non-radiative losses, thus deteriorating device performance. By managing surface reconstruction using a low-cost mixture-solvent surface reconstruction strategy, cost-effective PeLEDs is obtained with a high radiance of 1103.31 W sr⁻¹ m⁻² and an extended lifetime of 84.8 h operated at a current density of 100 mA cm⁻², representing the highest brightness for FAPbI₃-based PeLEDs.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"12 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143371681","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":"Detection of Human Cervical Cancer by Probe-Based Quantitative Optical Coherence Tomography","authors":"Tao Han, Shuhao Qian, Jia Meng, Lingxi Zhou, Gangqin Xi, Lu Yang, Lingmei Chen, Ling Zhang, Rushan Jiang, Chuncheng Wang, Bo Niu, Soumitra Satapathi, Jin Zhang, Chao He, Ke Sun, Shuangmu Zhuo, Zhihua Ding, Zhiyi Liu","doi":"10.1002/lpor.202401479","DOIUrl":"https://doi.org/10.1002/lpor.202401479","url":null,"abstract":"Most cervical cancers develop from squamous cells in the exocervix followed by stromal invasion, which alters the organization and morphology of collagen fibers. Therefore, morpho-structural remodeling of collagen fibers is closely associated with cancer progression. Collagen-based cancer detection requires not only techniques capable of qualified large-depth imaging but also computational sensitivity to extract subtle changes. Here, optical coherence tomography (OCT) is applied to collagen fibers in the exocervix. High-quality imaging into deep stroma is guaranteed by an all-fiber probe designed to have an extended depth of focus through the formation of the quasi-Bessel focusing beam. Collagen fibers provide dominant scattering signals in OCT images, and volume information is utilized to establish an optical biomarker reflecting variation gradient in fiber alignment and crimping. Detection of cervical cancer with a multi-parametric method is then evaluated by ex vivo imaging of human specimens and in vivo imaging of a murine model harboring human cervical cancer. Finally, the tumor potential index (TPI) is proposed by merging multiple metrics. The TPI map provides an intuitive illustration of cancer risk, which may guide clinicians more accurately to the correct location for biopsy.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"79 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258683","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":"Silicon-Integrated Perovskite Photonic Laser Based on Bound States in Continuum","authors":"Zhiyuan Gu, Hao Gu, Nan Zhang, Sen Jiang, Gang Wang, Yulin Mao, Jinfeng Liao, Shengchun Yang, Chao Liang, Guichuan Xing","doi":"10.1002/lpor.202401327","DOIUrl":"https://doi.org/10.1002/lpor.202401327","url":null,"abstract":"On-chip light sources are essential in modern technology, serving a broad range of applications, from sensing to display and communication. Lead halide perovskites, a new class of ionic semiconductors with excellent optical and optoelectronic properties, as well as solution processability, hold great potential in achieving coherent light sources. Compared to costly III-V-based compound semiconductor on-chip lasers with threading dislocation, perovskite with high defect-tolerance offers decisive advantages for flexible, cost-effective, and massive deposition on arbitrary substrates. Despite the success of numerous perovskite lasers, true on-chip integration, i.e., monolithic integration on silicon platforms, remains very little explored. Physically, light confinement by perovskite structures on silicon is unlikely due to substantial energy leakage into the silicon substrate. Herein, to address this bottleneck, the study presents the experimental realization of perovskite microlasers on silicon chips operating at visible and near-infrared frequencies, utilizing bound states in the continuum (BICs) to suppress intrinsic light leakage. Using a top-down focused ion beam nanofabrication technique, perovskite microdisks are fabricated with ultrasmooth sidewalls. A high laser quality factor of 4850 is observed at a wavelength of approximately 822 nm. The simple but rational integration solutions proposed here pave the way for the dense incorporation of perovskite laser sources into on-chip photonic circuits, supporting the development of perovskite nanophotonics and their integration with microelectronic platforms.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"12 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143192531","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":"Bright Heralded Single-Photon Source Saturating Theoretical Single-photon Purity","authors":"Haoyang Wang, Huihong Yuan, Qiang Zeng, Lai Zhou, Haiqiang Ma, Zhiliang Yuan","doi":"10.1002/lpor.202401420","DOIUrl":"https://doi.org/10.1002/lpor.202401420","url":null,"abstract":"Single-photon source is the cornerstone for modern quantum information processing. The present work derives the theoretical limit of single-photon purity for general parametric heralded single-photon <b>sources</b>, and subsequently demonstrates a bright, gigahertz-pulsed heralded source with the purity saturating the limit. By stimulating spontaneous four-wave mixing effect in the silicon spiral waveguide, this on-chip source is measured to have a coincidence rate exceeding 1.5 MHz at a coincidence-to-accidental ratio (CAR) of 16.77 in the photon pair correlation experiment. The single-photon purity of this source, quantified by the heralded auto-correlation function <span data-altimg=\"/cms/asset/aa70dc6b-4f03-4411-8712-9a91328311c6/lpor202401420-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"3\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor202401420-math-0001.png\"><mjx-semantics><mjx-mrow data-semantic-annotation=\"clearspeak:simple\" data-semantic-children=\"7,11\" data-semantic-content=\"12,0\" data-semantic- data-semantic-role=\"simple function\" data-semantic-speech=\"g Subscript normal h Superscript left parenthesis 2 right parenthesis Baseline left parenthesis 0 right parenthesis\" data-semantic-type=\"appl\"><mjx-msubsup data-semantic-children=\"0,1,5\" data-semantic-collapsed=\"(7 (6 0 1) 5)\" data-semantic- data-semantic-parent=\"13\" data-semantic-role=\"simple function\" data-semantic-type=\"subsup\"><mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-operator=\"appl\" data-semantic-parent=\"7\" data-semantic-role=\"simple function\" data-semantic-type=\"identifier\"><mjx-c></mjx-c></mjx-mi><mjx-script style=\"vertical-align: -0.317em; margin-left: 0px;\"><mjx-mrow data-semantic-children=\"3\" data-semantic-content=\"2,4\" data-semantic- data-semantic-parent=\"7\" data-semantic-role=\"leftright\" data-semantic-type=\"fenced\" size=\"s\"><mjx-mo data-semantic- data-semantic-operator=\"fenced\" data-semantic-parent=\"5\" data-semantic-role=\"open\" data-semantic-type=\"fence\"><mjx-c></mjx-c></mjx-mo><mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"5\" data-semantic-role=\"integer\" data-semantic-type=\"number\"><mjx-c></mjx-c></mjx-mn><mjx-mo data-semantic- data-semantic-operator=\"fenced\" data-semantic-parent=\"5\" data-semantic-role=\"close\" data-semantic-type=\"fence\"><mjx-c></mjx-c></mjx-mo></mjx-mrow><mjx-spacer style=\"margin-top: 0.18em;\"></mjx-spacer><mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"7\" data-semantic-role=\"latinletter\" data-semantic-type=\"identifier\" size=\"s\"><mjx-c></mjx-c></mjx-mi></mjx-script></mjx-msubsup><mjx-mo data-semantic-added=\"true\" data-semantic- data-semantic-operator=\"appl\" data-semantic-parent=\"13\" data-semantic-role=\"applicatio","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"55 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143192544","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":"3D Characterization of Spatiotemporally Coupled High Harmonic Attosecond Pulses","authors":"Mingdong Yan, Yaodan Hu, Zijuan Wei, Zhengyan Li","doi":"10.1002/lpor.202401675","DOIUrl":"https://doi.org/10.1002/lpor.202401675","url":null,"abstract":"Manipulation of ultrafast laser fields across the temporal, spatial, and spectral domains can result in a spatiotemporally coupled structure of light, which cannot be mathematically decomposed into the product of spatial and temporal profiles. However, this spatiotemporal coupling effect may degrade the focusability of ultrafast laser pulses at large-scale laser facilities. As ultrafast science has advanced from femtosecond to attosecond time scales, coherent attosecond optical pulses have become accessible through high harmonic generation, an extremely nonlinear optical process that produces an enhanced spatiotemporal coupling effect. Limited studies have explored the spatiotemporal coupling of high harmonic attosecond pulses owing to the lack of 3D characterization of attosecond optical fields. This study addresses this limitation by providing a 3D characterizing of the spatiotemporal optical field profiles of high harmonic attosecond pulses and investigating their physical spatiotemporal coupling effects. The spatiotemporal coupling of high harmonic attosecond pulses is quantitatively evaluated via a newly defined parameter that incorporates phase contributions in the time-space domain, which may likely correlate with the inhomogeneous intrinsic atomic dipole phase determined by the driving laser intensity. This physical insight, combined with the 3D optical field metrology, can potentially benefit extreme UV nonlinear optics and attosecond dynamic imaging.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"22 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258684","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":"Programmable Photonic Extreme Learning Machines","authors":"José Roberto Rausell-Campo, Antonio Hurtado, Daniel Pérez-López, José Capmany Francoy","doi":"10.1002/lpor.202400870","DOIUrl":"https://doi.org/10.1002/lpor.202400870","url":null,"abstract":"Photonic neural networks offer a promising alternative to traditional electronic systems for machine learning accelerators due to their low latency and energy efficiency. However, the challenge of implementing the backpropagation algorithm during training has limited their development. To address this, alternative machine learning schemes, such as extreme learning machines (ELMs), are proposed. ELMs use a random hidden layer to increase the feature space dimensionality, requiring only the output layer to be trained through linear regression, thus reducing training complexity. Here, a programmable photonic extreme learning machine (PPELM) is experimentally demonstrated using a hexagonal waveguide mesh, and which enables to program directly on chip the input feature vector and the random hidden layer. This system also permits to apply the nonlinearity directly on-chip by using the system's integrated photodetecting elements. Using the PPELM, three different complex classification tasks are solved successfully. Additionally, two techniques are also proposed and demonstrated to increase the accuracy of the models and reduce their variability using an evolutionary algorithm and a wavelength division multiplexing approach, obtaining excellent performance. These results show that programmable photonic processors may become a feasible way to train competitive machine learning models on a versatile and compact platform.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"11 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258682","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":"High Quantum Yields Enhancement Induced by Processable AIEgens Doped Photonic Crystal Powders for Bright Luminescence and Structural Colors","authors":"Chuyu Qiao, Tianyi Liu, Suli Wu","doi":"10.1002/lpor.202401970","DOIUrl":"https://doi.org/10.1002/lpor.202401970","url":null,"abstract":"The composite solid-state structure of photonic crystals (PCs) and aggregation-induced-emission agents (AIEgens) exhibits potential for various applications, owing to its remarkable anti-aggregation quenching effect and exceptional fluorescence tuning ability. Herein, TVP molecules integrate into PCs by one-step co-assembly of TVP molecules and PMMA colloidal spheres. By carefully optimizing the assembly conditions, a kind of AIEgens doped structures fabricate, which exhibit vibrant structural color, bright fluorescence, and especially impressive luminescence quantum yield up to 0.838. Importantly, after being grounded into micron-scale PC powders, the AIEgens doped PCs retain their good optical properties and exhibit exceptional light and thermal stability. Compared with the polymer film or deposited films on substrates of the previously reported composite PCs and AIEgens, the powder state endows them with good processibility, enabling them to be seamlessly integrate with various polymers to meet the diverse requirements of different processing techniques. The good processability facilitates the production of 2D or 3D models that possess both vivid structural color and bright luminescence. Moreover, the co-assembly strategy of fabricating AIEgens doped PCs powders can be employed for the colloidal spheres with varying diameters or diverse AIEgens, thereby enabling the generation of adjustable luminescence and structural color, thus substantially broadening the potential application scenarios.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258687","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":"Quantum Holographic Microscopy","authors":"Ling-Jun Kong, Jingfeng Zhang, Zhuo Zhang, Xiangdong Zhang","doi":"10.1002/lpor.202401909","DOIUrl":"https://doi.org/10.1002/lpor.202401909","url":null,"abstract":"Quantitative phase microscopy (QPM) techniques are widely investigated for imaging transparent specimens, such as cells and tissues. The sensitivity and resolution of conventionally used QPM are fundamentally limited by environmental noise. Recently, quantum phase microscopy has been proposed. The research on it has made some progress and has shown many advantages over the classical one, such as greater robustness and higher contrast. However, the phase resolution of existing quantum phase microscopies remains very low, often confined to the qualitative measurement level. Here, to resolve these practical limitations, we introduced polarization entanglement-enabled quantum holographic technology into the microscopy system and constructed a new type of quantum phase microscopy, namely quantum holographic microscopy. By improving the existing quantum holographic scheme, our microscope system can be used to measure both various non-biological phase samples and label-free biological samples. The experimental results show that the phase resolution is improved by an order of magnitude compared with that of existing quantum phase microscopes. Moreover, the system has good robustness and can still obtain clear images in the presence of strong classical noise. The newly constructed quantum microscopic system is expected to have broad applications in industrial production, medicine, biological research, and other fields.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258685","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":"Rewritable ITO Patterning for Nanophotonics","authors":"Xinqin Liu, Pan Peng, Zhenyang Zhang, Xiangyu Zhao, Wenyu Chen, Shiyuan Liu, Jinlong Zhu","doi":"10.1002/lpor.202401799","DOIUrl":"https://doi.org/10.1002/lpor.202401799","url":null,"abstract":"Nanophotonic devices leverage unique interactions between photons and materials at the nanoscale, enabling applications in optical communication, biosensing, and quantum computing. These devices' properties are susceptible to material composition and structural design. Nanofabrication techniques, such as optical lithography, e-beam lithography, two-photon polymerization, and direct laser writing, have been widely applied to fabricate nanophotonic devices. Notably, rewritable fabrication stands out due to its low cost, flexibility, efficiency, and multi-functionality. In this paper, a novel rewritable nanofabrication technique is proposed, which combines electrochemical reactions with direct laser writing, to fabricate nanophotonic devices on low-cost indium tin oxide (ITO) films. The experimental results have demonstrated that high-quality and erasable photonic structures such as diffraction gratings and holography masks can be directly fabricated using our technique. Hence, it is believed that this method can be applied in diverse fields such as nanophotonics, optoelectronic devices, biosensors, micro-electromechanical systems, and nonlinear optics.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"19 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083904","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":"Rapid Whole-Organ Characterization via Quantitative Light-Sheet Microscopy (Laser Photonics Rev. 19(3)/2025)","authors":"Lingmei Chen,&nbsp;Yijun Su,&nbsp;Shuhao Qian,&nbsp;Lingxi Zhou,&nbsp;Tao Han,&nbsp;Chuncheng Wang,&nbsp;Rushan Jiang,&nbsp;Zhihua Ding,&nbsp;Min Guo,&nbsp;Zhiyi Liu","doi":"10.1002/lpor.202570010","DOIUrl":"https://doi.org/10.1002/lpor.202570010","url":null,"abstract":"<p><b>Whole-Organ Imaging</b></p><p>A quantitative light-sheet microscopy platform has been developed to enable highly time-efficient assessments of fibrous structures within the cleared whole organ. This platform achieves automatic identification of medulla and cortex within the mouse ovary, and leads to a better understanding of the immune microenvironment by obtaining heterogeneous distributions of immune cells. See article 2401177 by Min Guo, Zhiyi Liu, and co-workers for more details.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"19 3","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.202570010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111789","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}