Laser & Photonics Reviews最新文献

{"title":"Simultaneous Switching of Spin Helicity and Band Dispersion in Reconfigurable Thermal Metasurfaces","authors":"Yixin Wang, Junchi Yue, Jianyu Yang, Changzhen Zhang, Hui Ye, Zhanghua Han, Yangjian Cai, Haining Chong","doi":"10.1002/lpor.72028","DOIUrl":"https://doi.org/10.1002/lpor.72028","url":null,"abstract":"Integrating spin and momentum degrees of freedom in thermal photonics offers unprecedented control over light emission, yet achieving dynamic, simultaneous reconfiguration of both properties within a single planar platform remains elusive. Here, we present a reconfigurable spin‐thermophotonic platform based on bilaterally stub‐loaded germanium waveguide metasurfaces that break in‐plane mirror symmetry. Driven by the inherent thermo‐optic effect, a cooperative dual‐switching paradigm is demonstrated, simultaneously inverting the radiative spin helicity and transforming the underlying band profiles. Spectroscopic measurements firmly substantiate these coexisting states, experimentally revealing a 3.6‐fold enhancement in the optical density of states (DOS) within the flatband mode and an extended far‐field spatial coherence length of 0.09 mm sustained by the highly dispersive branch. Furthermore, while normal emission unlocks a broad raw spectral tuning capability of 88 nm across a 160 K temperature excursion, a momentum‐space compensation scheme at a 6° oblique angle suppresses loss‐induced cross‐talk, securing a high‐purity chiral switching window spanning 34 nm with high temporal coherence ( <jats:italic>Q</jats:italic> ∼ 90) and an emission circular dichroism exceeding 0.86. Our platform offers a compact, scalable pathway toward active, on‐chip coherent thermal light sources for advanced infrared technologies.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"5 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123736","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":"Toward Full-Color Micro-LEDs: Monolithic, Heterogeneous, and Quantum Dot Approaches","authors":"Yuning Liang,&nbsp;Yizhou Xiao,&nbsp;Boyan Yang,&nbsp;Kehui Wang,&nbsp;Qingyuan Zuo,&nbsp;Xinshuang Zhan,&nbsp;Junpeng Lu,&nbsp;Zhenhua Ni,&nbsp;Zhicheng Su","doi":"10.1002/lpor.71659","DOIUrl":"10.1002/lpor.71659","url":null,"abstract":"<div>\u0000 \u0000 <p>Full-color Micro-light-emitting diode (Micro-LED) displays are attracting intense interest for next-generation microdisplays because they offer high brightness, high pixel density, low power consumption, fast response, and long operating lifetime. However, their practical development is still limited by the central challenge of achieving efficient, stable, and manufacturable full-color operation at small pixel size. This article discusses three major routes toward full-color microdisplays related to Micro-LED technologies: monolithic approaches, transfer and bonding integration, and quantum dot (QD)-based approaches, including color conversion Micro-LEDs and electroluminescent QDs. The key progress and remaining bottlenecks of each route are examined, with emphasis on how the dominant challenge shifts from long-wavelength nitride emission and device integration to pixel-scale patterning, optical confinement, and emissive layer stability. By comparing these pathways in terms of process complexity, pixel density potential, full-color performance, and current demonstration maturity, this review clarifies their respective strengths and limitations and aims to offer useful guidance for future practical full-color Micro-LED displays.</p>\u0000 </div>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"20 19","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148674992","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":"Perovskite Quantum Dot Fibers: Advances, Challenges, and Prospects Toward Next-Generation Flexible Optoelectronics","authors":"Hailong Wang,&nbsp;Chaoyu You,&nbsp;Guowei Xiao,&nbsp;Yufei Chen,&nbsp;Wenjing Ji,&nbsp;Bin Sun","doi":"10.1002/lpor.71692","DOIUrl":"10.1002/lpor.71692","url":null,"abstract":"<div>\u0000 \u0000 <p>The escalating requirements for conformal and wearable optoelectronic systems have stimulated groundbreaking advancements in functional material engineering and device topology innovation. Traditional rigid architectures, constrained by mechanical inflexibility and integration challenges, are being superseded by fiber-based platforms that capitalize on intrinsic deformability, mass-production compatibility, and seamless textile integration. Perovskite quantum dots (PQDs), distinguished by their superb quantum yield, spectrally programmable emission, and colloidal processability, have emerged as transformative components for next-generation optoelectronic fibers. This review provides a comprehensive overview of recent advances in perovskite quantum dot fiber (PQDF) technologies, encompassing synthesis strategies, approaches to performance optimization, and emerging applications. It systematically highlights key technical challenges associated with environmental stability, scalability, and interfacial compatibility, while outlining future research directions centered on sensing, anti-countereitng, photoelectric conversion, and optical communication applications. By integrating materials innovation with device engineering perspectives, this review serves as a critical bridge between fundamental research and practical implementation in the development of smart textiles and next-generation optoelectronic systems.</p>\u0000 </div>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"20 19","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148717395","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-Efficiency Graphene-Silicon Slot-Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands","authors":"Chao Luan,&nbsp;Deming Kong,&nbsp;Yong Liu,&nbsp;Yunhong Ding,&nbsp;Hao Hu","doi":"10.1002/lpor.71349","DOIUrl":"https://doi.org/10.1002/lpor.71349","url":null,"abstract":"<p>Electro-optic (E/O) modulators are crucial for optical communication but face a trade-off between bandwidth and efficiency. Here, we present an integrated modulator that simultaneously achieves wideband, large bandwidth, and high efficiency operation by embedding a partially overlapped double-layer graphene on a compact silicon slot-waveguide microring resonator. At 1.5 <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm m}$</annotation>\u0000 </semantics></math> waveband, the modulator has a large bandwidth of over 70 GHz (setup limited), an active length of 10 <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm m}$</annotation>\u0000 </semantics></math>, an insertion loss of 1.41 dB, an extinction ratio of 9.2 dB, and an OMA of −1.97 dBm under a 3-V voltage swing at 1549.023 nm (45 pm detuning). Anopen eye-diagram of 50 Gbit/s was obtained with a 2-V <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>V</mi>\u0000 <mtext>pp</mtext>\u0000 </msub>\u0000 <annotation>$V_{text{pp}}$</annotation>\u0000 </semantics></math> RF drive voltage. At 2 <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$umu{rm m}$</annotation>\u0000 </semantics></math> waveband, the modulator has a large bandwidth of over 20 GHz (setup limited), an extinction ratio of 9.3 dB, an insertion loss of 2.98 dB, an OMA of −3.36 dBm under a 6-V voltage swing, and an open eye diagram at 20 Gbit/s with a 2-V <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>V</mi>\u0000 <mtext>pp</mtext>\u0000 </msub>\u0000 <annotation>$V_{text{pp}}$</annotation>\u0000 </semantics></math> RF drive voltage. The broadband, large bandwidth, compact, highly efficient, and energy efficient graphene E/O modulator has the potential to enable large-scale graphene photonic integrated circuits, facilitating a broad range of applications such as optical interconnects and programmable photonic circuits.</p>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"20 19","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.71349","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100735","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":"Polychromatic Circularly Polarized Luminescence Enhanced Multi-Dimensional Encryption (Laser Photonics Rev. 20(19)/2026)","authors":"Lu Li,&nbsp;Wei-Wen Fan,&nbsp;Xiao-Yi Xu,&nbsp;Chun-Ting Xu,&nbsp;Yong Zhang,&nbsp;Wei Hu","doi":"10.1002/lpor.71841","DOIUrl":"10.1002/lpor.71841","url":null,"abstract":"<p><b>Dynamic CPL Enables Multi-dimensional Encryption</b></p><p>This cover illustrates a polychromatic circularly polarized luminescence (CPL) platform for multi-dimensional optical encryption. Through laser-written chiral microstructures, information is encoded in color, circular polarization, and spatial dimensions, enabling advanced anti-counterfeiting and secure data storage. The holographic projections and smart glasses symbolize the selective decoding and visualization of encrypted information with enhanced security and versatility. See Research Article e71287 by Chun-Ting Xu, Wei Hu 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":"20 19","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.71841","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149089856","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":"Laser-Induced Domain Engineering in Potassium Tantalate Niobate Crystals for Ultra-Broadband Second-Harmonic Generation (Laser Photonics Rev. 20(19)/2026)","authors":"Siwen Ai,&nbsp;Quanxin Yang,&nbsp;Yan Sheng,&nbsp;Pifu Gong,&nbsp;Yuechen Jia,&nbsp;Karsten Buse,&nbsp;Aizhu Wang,&nbsp;Xiaoyi Xu,&nbsp;Yong Zhang,&nbsp;Hongliang Liu","doi":"10.1002/lpor.71840","DOIUrl":"10.1002/lpor.71840","url":null,"abstract":"<p><b>Ultra-broadband Second-Harmonic Generation</b></p><p>The simultaneous generation of nonlinear Raman-Nath diffraction, Čerenkov-type radiation, and enhanced Bragg diffraction in the femtosecond laser-induced domain structure in a potassium tantalate niobate crystal confirms the fulfillment of quasi-phase matching conditions. Crucially, the structure demonstrates highly efficient second-harmonic generation across an ultra-broad 300-nm wavelength range in the infrared, enabling robust conversion into the visible spectrum. The work by Yuechen Jia, Hongliang Liu and co-workers (see Research Article e71256) establishes laser-induced phase transition engineering as a versatile platform for creating high-performance, multi-functional nonlinear photonic devices, offering a compelling solution for applications in integrated quantum light sources, broadband frequency converters, and advanced optical communications.\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":"20 19","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.71840","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149089857","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":"Hardware‐Efficient FMCW Laser Ranging Beyond the Coherence Length Approaching the Wiener Phase Noise Limit","authors":"Xiuyuan Sun,Zhongyang Xu,Sihan Qi,Guangkui Tao,Qingbo Liu,Yuhang Li,Min Xue,Changyuan Yu,Shilong Pan","doi":"10.1002/lpor.71951","DOIUrl":"https://doi.org/10.1002/lpor.71951","url":null,"abstract":"ABSTRACT Coherent ranging based on frequency‐modulated continuous‐wave (FMCW) lasers is highly promising for autonomous systems. However, the high‐cost laser source hinders the large‐scale deployment of FMCW lidar, which requires both narrow linewidth and large tuning bandwidth. With increasing computational power, digital parameter estimation offers an alternative solution to overcome the laser phase noise, thereby paving the way for low‐cost FMCW lidar. Here, we propose a model‐driven estimation framework that enables high‐precision FMCW ranging beyond the coherence length limit with high hardware efficiency. The optical phase is precisely tracked and recovered without pilots or auxiliary interferometers. Laser ranging beyond the coherence length is realized with a low‐cost 2‐MHz distributed feedback (DFB) laser. A ranging precision of 2.53 cm (1‐ms averaging time) can be achieved at twice the coherence length. The dynamic range is around 63 dB that is 24 dB higher than the conventional method. The length of a 1‐km fiber can be measured with centimeter‐level precision using the low‐cost DFB laser. The precision is only 3 dB higher than the Bayesian Cramér‐Rao lower bound. The method provides a hardware‐efficient solution for low‐cost and high‐precision FMCW lidar, paving the way for large‐scale applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"24 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149089855","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":"Experimental Characterization Techniques for On-Chip Stimulated Brillouin Scattering: Principles, Platforms, and Perspectives","authors":"Xin Meng,&nbsp;Wuyang Zhong,&nbsp;Tao Liang,&nbsp;Jiawei Wang,&nbsp;Jianan Duan,&nbsp;Shushi Gu,&nbsp;Yichuan Li,&nbsp;Xiaochuan Xu,&nbsp;Feng He","doi":"10.1002/lpor.71689","DOIUrl":"10.1002/lpor.71689","url":null,"abstract":"<div>\u0000 \u0000 <p>Stimulated Brillouin scattering (SBS), a third-order nonlinear optical effect, arising from photon-phonon interactions, exhibits one of the lowest thresholds among nonlinear processes and has recently emerged as a powerful mechanism in integrated photonics. Owing to its unique opto-acoustic coupling, on-chip SBS enables a variety of functionalities, including narrow-linewidth lasers, microwave photonic filtering, optical delay, optical amplification, optical recurrent neural networks, optical storage, phonon lasing, and ultra-high-purity RF signal generation. Furthermore, the integration of SBS with Kerr nonlinearity, topological photonics, and exceptional points has enabled new phenomena such as broadband platform solitons, robust directional Stokes light transmission, and high-precision gyroscopes. Since its first demonstration in chalcogenide waveguides, on-chip SBS has been realized in diverse material platforms, including silicon, silicon nitride, rare-earth-ion-doped silicon nitride, and lithium niobate, each requiring distinct characterization approaches. In this review, we introduce the fundamental principles and classifications of SBS, followed by a comprehensive overview of seven representative experimental Configurations for on-chip SBS characterization. Their operating principles, advantages, limitations, and applicable scenarios are systematically compared. Finally, we discuss emerging opportunities for SBS in topological photonic platforms toward robust and quantum-coherent photon-phonon functionalities.</p>\u0000 </div>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"20 19","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148687767","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":"Sn–Pb Perovskite Laser Wireless Power Transfer for Medical Implants: A Perspective","authors":"Wenqing Zhang,&nbsp;Zhenghao Huan,&nbsp;Yanju Wang,&nbsp;Xinming Zhuang,&nbsp;Yifan Zheng,&nbsp;Yuchuan Shao","doi":"10.1002/lpor.71887","DOIUrl":"10.1002/lpor.71887","url":null,"abstract":"<div>\u0000 \u0000 <p>As global precision medicine advances toward chronic disease management and active health intervention, implantable medical devices are evolving from passive monitors into active therapeutic platforms. While subcutaneous bioelectronics, exemplified by pacemakers, are cornerstones of personalized medicine, their utility is restricted by the volumetric bulk, surgical replacement burdens, and radio-frequency interference associated with traditional battery power. Furthermore, the inefficiency and mechanical rigidity of ultrasound transmission impede the shift toward miniaturized, sustainable, and minimally invasive architectures. Laser wireless power transfer (LWPT) emerges as a transformative solution to these energy constraints. This perspective systematically examines the potential of LWPT systems based on mixed tin-lead (Sn–Pb) perovskite and propose solutions to five core challenges: optimizing power conversion efficiency, long-term biocompatibility, customized design for diverse sensors, long-term operation stability, system-level integration. These strategies are expected to advance sustainable, miniaturized implants, laying the groundwork for the future of precision medicine and lifelong health management.</p>\u0000 </div>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"20 19","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148908745","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":"Machine Learning in Inertial Confinement Fusion: Applications, Challenges, and Prospects","authors":"Wei Chen,&nbsp;Wei Fan,&nbsp;Xinghua Lu","doi":"10.1002/lpor.202501746","DOIUrl":"10.1002/lpor.202501746","url":null,"abstract":"<div>\u0000 \u0000 <p>The recent demonstration of laser-driven fusion ignition at the National Ignition Facility (NIF) has marked a pivotal advancement in inertial confinement fusion (ICF) research. This approach relies on precisely controlled high-power laser facilities to compress and heat fusion fuel to extreme conditions sufficient for nuclear fusion. Achieving optimal target performance presents challenges in laser control and management, experimental design, and physical modeling, compounded by the substantial costs of experiments and numerical simulations. Recently, machine learning (ML) has been widely applied in ICF research due to its enhanced computational efficiency and data-driven modeling capabilities. This paper provides a review of ML applications in ICF, addressing current advancements, challenges, and prospects. First, it outlines the key technical bottlenecks in ICF and discusses how ML approaches offer potential solutions. It then describes the implementation of major ML algorithms across ICF research and systematically reviews recent advances in laser control and optimization, operation and management of high-power laser facilities, and optimization and design of ICF physics experiments. Subsequently, it provides a detailed analysis of ML applications to five tasks: image analysis, data processing, optimization and design, intelligent and precision control, and prediction and inversion. Finally, open challenges, potential solutions, and future perspectives are discussed.</p>\u0000 </div>","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"20 19","pages":""},"PeriodicalIF":9.7,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148717412","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}