Laser & Photonics Reviews最新文献_第8页

Balancing Ultrafast Decay and High Light Yield in PEA 2 PbBr 4 Crystals Through Strain‐Regulated Exciton Localization 通过应变调节激子定位平衡pe2pbbr4晶体的超快衰减和高光产率

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-09 DOI: 10.1002/lpor.72047

Zehui Xiang, Xin Chen, Yunzhong Zhu

{"title":"Balancing Ultrafast Decay and High Light Yield in PEA 2 PbBr 4 Crystals Through Strain‐Regulated Exciton Localization","authors":"Zehui Xiang, Xin Chen, Yunzhong Zhu","doi":"10.1002/lpor.72047","DOIUrl":"https://doi.org/10.1002/lpor.72047","url":null,"abstract":"Ultrafast scintillators are indispensable for advanced radiation detection. Nevertheless, reconciling sub‐nanosecond temporal response with high light yield remains a longstanding bottleneck, since rapid de‐excitation is usually accompanied by excessive exciton localization and dominant nonradiative recombination losses. Herein, we report a localized strain regulation strategy to tailor the environments of localized excitons in 2D PEA 2 PbBr 4 , thereby addressing the competition between ultrafast scintillation decay and high light yield. Specifically, robust Cu‐I coordination acts as local structural compensation in PEA 2 PbBr 4 , offsetting the structural disorder and strain amplification triggered solely by iodide incorporation. Such local structural reconstruction preserves the fast de‐excitation channels while enhancing radiative recombination. Benefiting from this precise control, CuI‐PEA 2 PbBr 4 exhibits a fast photoluminescence (PL) decay component of 0.44 ns, while achieving a light yield of 14,200 ± 600 photons MeV −1 under γ‐ray excitation. This work demonstrates that strain regulation of localized exciton environments serves as a powerful pathway toward high‐efficacy perovskite scintillators and provides a brand‐new design paradigm for diverse perovskite scintillators.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"293 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149130547","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

Overcoming Thermal Quenching of Near‐Infrared Emissions From Re(IV) in Soft Double Perovskite Through Reduced Phonon‒Phonon Coupling 通过减少声子-声子耦合克服软双钙钛矿中Re（IV）近红外辐射的热猝灭

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-09 DOI: 10.1002/lpor.72022

Fangxue Chen, Sailian Yan, Qianjin Zhang, Jin Han, Yugeng Wen, Jianbei Qiu

{"title":"Overcoming Thermal Quenching of Near‐Infrared Emissions From Re(IV) in Soft Double Perovskite Through Reduced Phonon‒Phonon Coupling","authors":"Fangxue Chen, Sailian Yan, Qianjin Zhang, Jin Han, Yugeng Wen, Jianbei Qiu","doi":"10.1002/lpor.72022","DOIUrl":"https://doi.org/10.1002/lpor.72022","url":null,"abstract":"Transition metal (TM) ion‐doped halide perovskites (HPs) rapidly gain prominence in various research fields due to tunable near‐infrared (NIR) emission characteristics. However, unsatisfactory thermal stability severely restricts their practical application, particularly in the NIR‐II region (1200‒1600 nm). Herein, both intra‐configurational spin‐flip narrow/broadband emissions from Re 4+ with low thermal quenching are realized in Cs 2 NaLuCl 6 populated by efficient Yb 3+ →Re 4+ process. Specially, quantum efficiency and thermal stability of predominantly broadband NIR‐II luminescence can be improved to 95% and 94.8%@423 K by F ‒ local structure engineering. Lattice and excited‐state dynamics, temperature‐dependent luminescent spectra, and theoretical calculations verify Re 4+ ion shows unchanged metal‐ligand bond lengths and vibronic energies under thermal activation, leading to self‐vibration effect by spatially and temporally decoupling to the accumulated lattice vibrations in soft 3D framework. The dominated low‐frequency T 2g phonon mode of Re 4+ gives rise to reduced intrinsic phonon anharmonicity via non‐crossover energy profile. Besides, a fundamental comprehension of high quantum efficiency is linked to low symmetry, strong spin–orbit coupling, weak, electron–phonon coupling and large Franck–Condon factor. The exceptional NIR‐II luminescence are fully exploited for high‐performance light‐emitting diodes, imaging, HF gas detection and anti‐counterfeiting. The vibration‐adaptive feature of Re 4+ offers new opportunities for potential multifunctional applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"10 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149130552","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

Metal‐Hybrid Optical Tamm Cavity THz Detector With High Quality Factor 高品质因子金属-混合光学塔姆腔太赫兹探测器

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-08 DOI: 10.1002/lpor.72035

Zhanzhang Mai, Xuecou Tu, Bingnan Yan, Yunjie Rui, Dingxuan Gu, Cheng Liang, Hongshan Jing, Baoran Lai, Yichen Li, Runfeng Su, Chao Wan, QingYuan Zhao, Labao Zhang, Xiaoqing Jia, Huabing Wang, Lin Kang, Jian Chen, Peiheng Wu

{"title":"Metal‐Hybrid Optical Tamm Cavity THz Detector With High Quality Factor","authors":"Zhanzhang Mai, Xuecou Tu, Bingnan Yan, Yunjie Rui, Dingxuan Gu, Cheng Liang, Hongshan Jing, Baoran Lai, Yichen Li, Runfeng Su, Chao Wan, QingYuan Zhao, Labao Zhang, Xiaoqing Jia, Huabing Wang, Lin Kang, Jian Chen, Peiheng Wu","doi":"10.1002/lpor.72035","DOIUrl":"https://doi.org/10.1002/lpor.72035","url":null,"abstract":"Terahertz (THz) optical cavities are essential for enhancing light–matter interactions, yet achieving high‐quality‐factor resonators with practical fabrication and direct device integration remains challenging. Here, we demonstrate a Nb 5 N 6 microbolometer embedded in a hybrid metal–optical Tamm cavity (MOTC), experimentally achieving a Q factor of 1088 at approximately 0.625 THz. The MOTC combines the advantages of Tamm and optical Tamm configurations: an additional distributed Bragg reflector (DBR) suppresses metal‐induced loss, while the bottom Au mirror eliminates transmission leakage. The detector and DBRs are fabricated separately and subsequently assembled, avoiding complex monolithic integration and providing a modular architecture potentially compatible with large‐area detector arrays. Although the highest voltage responsivity occurs at a lower Q configuration, the detector response is jointly determined by local‐field enhancement and detector–cavity impedance matching. A reduced‐order equivalent coupling model is developed to capture the combined effects of local‐field enhancement and detector–cavity impedance matching, providing guidance for balancing cavity enhancement and detector responsivity. The high Q factor provides extended photon lifetimes and enhanced cavity fields, making the MOTC a promising platform for cavity‐enhanced THz detection and light–matter interactions.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"8 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123737","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

Low‐Crosstalk Silicon Photonic Switch Fabrics for AI Datacenters and High‐Capacity Optical Interconnects: Device‐Level Origins and Mitigation 用于人工智能数据中心和大容量光互连的低串扰硅光子开关结构：设备级起源和缓解

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-08 DOI: 10.1002/lpor.72016

Peng Bao, Bohao Sun, Tianqian Zhang, Tongyun Li, Richard J. Zhang, Yue Lu, Chenxi Tan, Alan Yilun Yuan, Lingzhi Luo, Ming Luo, Jin Tao, Hanbing Li, Seb J. Savory, Wei Chu, Richard Penty, Qixiang Cheng

{"title":"Low‐Crosstalk Silicon Photonic Switch Fabrics for AI Datacenters and High‐Capacity Optical Interconnects: Device‐Level Origins and Mitigation","authors":"Peng Bao, Bohao Sun, Tianqian Zhang, Tongyun Li, Richard J. Zhang, Yue Lu, Chenxi Tan, Alan Yilun Yuan, Lingzhi Luo, Ming Luo, Jin Tao, Hanbing Li, Seb J. Savory, Wei Chu, Richard Penty, Qixiang Cheng","doi":"10.1002/lpor.72016","DOIUrl":"https://doi.org/10.1002/lpor.72016","url":null,"abstract":"Silicon photonic switch fabrics are increasingly attractive for AI datacenters and high‐capacity optical interconnects, where optical circuit switching is being explored to support bandwidth‐intensive and dynamically reconfigurable connectivity. However, scaling silicon photonic switches to large port counts is fundamentally constrained by accumulated crosstalk, insertion loss, and device‐level non‐idealities. Suppressing crosstalk through additional architectural complexity can, in turn, compromise integration density and scalability. This article establishes a device‐to‐link‐to‐system framework for analysing the origins, accumulation, and mitigation of crosstalk in silicon photonic switch fabrics. Representative MZI, MRR, and RAMZI switching elements are examined to clarify how coupler imbalance, critical‐coupling deviation, and resonance‐induced amplitude–phase coupling impose extinction‐ratio limits and accumulate in large‐scale fabrics. Mitigation strategies are organised across device, circuit, and control levels to highlight their trade‐offs in crosstalk suppression, scalability, and implementation complexity. As a device‐level example, a tunable curved directional coupler is experimentally demonstrated as a compact primitive for post‐fabrication coupling‐ratio correction. Integrated into a 4 × 4 double‐layer‐network switch, it enables all 16 routing paths to exhibit crosstalk below −40 dB over a 10 nm bandwidth. All‐path 1.6 Tb/s IM/DD transmission experiments and link‐level simulations further connect device‐level crosstalk suppression to high‐capacity short‐reach operation and symbol‐rate‐dependent crosstalk tolerance.","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":"149123835","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

Water‐Resistant Polymer Films of Cyan‐Emitting CsPbBr 2.1 Cl 0.9 Perovskite Nanocrystals for Underwater Wireless Optical Communication 用于水下无线光通信的Cyan - Emitting CsPbBr 2.1 Cl 0.9钙钛矿纳米晶体的防水聚合物薄膜

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-08 DOI: 10.1002/lpor.72021

Jiang‐Yun Wan, Jing‐Jing Wang, Liang‐Zhu Huang, Zi‐Hua Chen, Jun‐Peng Deng, Shuo‐Shuo Zhang, Shuai He, Ren‐Hai Wang, Lin Ma, Wei Zhang, Andrey L. Rogach, Jun‐Nan Yang

{"title":"Water‐Resistant Polymer Films of Cyan‐Emitting CsPbBr 2.1 Cl 0.9 Perovskite Nanocrystals for Underwater Wireless Optical Communication","authors":"Jiang‐Yun Wan, Jing‐Jing Wang, Liang‐Zhu Huang, Zi‐Hua Chen, Jun‐Peng Deng, Shuo‐Shuo Zhang, Shuai He, Ren‐Hai Wang, Lin Ma, Wei Zhang, Andrey L. Rogach, Jun‐Nan Yang","doi":"10.1002/lpor.72021","DOIUrl":"https://doi.org/10.1002/lpor.72021","url":null,"abstract":"Underwater wireless optical communication (UWOC) holds great promise for applications in deep‐sea exploration, marine environmental monitoring, and underwater sensing, owing to its high bandwidth, low latency, and strong anti‐interference capability. Perovskite nanocrystals are considered ideal light‐source candidates for UWOC due to their emission tunability matching seawater's low‐loss window, high photoluminescence efficiency, ultrafast radiative recombination, and solution processability. However, poor water stability of perovskite nanocrystals originating from their intrinsic ionic lattice severely restricts their practical deployment in underwater environments. Herein, we report a synergistic strategy combining 2‐thiophenesulfonamide coordination passivation and isobornyl acrylate ultraviolet‐induced polymerization to prepare solution‐processable and water‐resistant polymer CsPbBr 2.1 Cl 0.9 perovskite nanocrystal films. 2‐thiophenesulfonamide passivates undercoordinated surface defects and enables stable perovskite nanocrystal dispersion in isobornyl acrylate monomer, while in situ ultraviolet‐polymerized isobornyl acrylate produces a dense protective polymer network to shield perovskite nanocrystals from water erosion. These composite films show outstanding water stability with a negligible emission intensity loss after 8 h of immersion in water. Integrated as a color‐conversion layer in a UWOC system, the perovskite nanocrystal‐based light‐emitting diode delivers a stable −3 dB bandwidth of 2.9 MHz. Using non‐return‐to‐zero amplitude shift keying modulation, the system achieves a data transmission rate of 3.48 Mbps.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"36 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123837","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

Broadband Dual‐Space Vortex Multiplexing Through Disorder‐Empowered Topological Metasurfaces 基于无序赋能拓扑元表面的宽带双空间涡旋复用

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-08 DOI: 10.1002/lpor.72024

Chao Wang, Kaipeng Liu, Ke Xu, Miao Liu, Xingang Ren, Siliang Wang, Ming Fang, Zhixiang Huang

{"title":"Broadband Dual‐Space Vortex Multiplexing Through Disorder‐Empowered Topological Metasurfaces","authors":"Chao Wang, Kaipeng Liu, Ke Xu, Miao Liu, Xingang Ren, Siliang Wang, Ming Fang, Zhixiang Huang","doi":"10.1002/lpor.72024","DOIUrl":"https://doi.org/10.1002/lpor.72024","url":null,"abstract":"The co‐manipulation of orbital angular momentum (OAM) in real and momentum spaces presents challenges in electromagnetic wave engineering, primarily due to the counteraction between topological defects and disorder, particularly in overcoming the intrinsic bandwidth limitations of topological photonic systems. Recent advancements have shown the generation of real‐momentum space vortices through bound states in the continuum in topological photonic crystals (PhCs), but these implementations face critical trade‐offs between spatial disorder tolerance and operating bandwidth. Here, we present a disorder‐empowered metasurface architecture that breaks this paradigm through geometric‐phase engineering combined with topological PhC design. Our platform achieves simultaneous broadband OAM generation in both real and momentum spaces, notably demonstrating a 40% fractional bandwidth in the momentum domain—far surpassing previous records. Experimental results break the prevailing notion that real‐space disorder inevitably degrades momentum‐space performance, demonstrating instead that engineered disorder actively stabilizes dual‐space broadband characteristics over an ultra‐wide frequency range. This phenomenon originates from geometrically locked Pancharatnam‐Berry phase robustness and self‐compensated momentum‐space topology, enabling wavelength‐independent vortex generation with preserved charge orthogonality across domains. This dual‐broadband capability expands the information‐carrying potential of topological photonic devices, paving the way for high‐capacity communication systems that leverage disorder as a beneficial design feature rather than a limiting factor.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"62 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123839","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‐Responsivity Broadband Single‐Pixel Perovskite Imager 高响应宽带单像素钙钛矿成像仪

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-08 DOI: 10.1002/lpor.72015

Gangsen Su, Jingrui Guan, Pengju Tan, Juntao Hu, Chen Wang, Nisar Ahmad, Xiaolan Ma, Mulin Sun, Mengxue Lu, Yuqian Yang, Hengwei Liu, Meiping Tan, Peng Tong, Yu Li, Honghe Ding, Junfa Zhu, Deying Luo, Yingguo Yang, Zheng‐Hong Lu, Yongqiang Yu, Mingjie Sun, Qin Hu

{"title":"High‐Responsivity Broadband Single‐Pixel Perovskite Imager","authors":"Gangsen Su, Jingrui Guan, Pengju Tan, Juntao Hu, Chen Wang, Nisar Ahmad, Xiaolan Ma, Mulin Sun, Mengxue Lu, Yuqian Yang, Hengwei Liu, Meiping Tan, Peng Tong, Yu Li, Honghe Ding, Junfa Zhu, Deying Luo, Yingguo Yang, Zheng‐Hong Lu, Yongqiang Yu, Mingjie Sun, Qin Hu","doi":"10.1002/lpor.72015","DOIUrl":"https://doi.org/10.1002/lpor.72015","url":null,"abstract":"Single‐pixel photodetectors have attracted significant interest as alternatives to conventional silicon‐based focal‐plane‐array image sensors owing to their simplified fabrication, high sensitivity, and compatibility with artificial intelligence (AI)‐assisted fast computational imaging. However, most reported single‐pixel photodetectors still suffer from low responsivity or limited spectral coverage, limiting imaging clarity and fidelity across the visible‐to‐near‐infrared (Vis‐NIR) spectral region. Metal halide perovskites, with high responsivity and cost‐effective fabrication, offer a promising platform for single‐pixel imaging (SPI). Here, we employ tin‐lead mixed perovskite photodetectors (Sn–Pb PPDs) incorporating a p‐type selenium‐alloyed tellurium oxide (Se–TeO x ) interlayer facilitates hole transport, suppresses Au diffusion, and inhibits Sn 2+ oxidation, thereby improving device performance and operational stability. The optimized self‐powered Sn–Pb PPD exhibits broadband detection from 300 nm to 1100 nm and a responsivity of 0.55 A W − 1 at 900 nm, the highest among reported self‐powered PPDs for SPI. Without an additional filtering circuit, the device achieved high‐fidelity 256 × 256‐pixel color imaging. Using a contour optimization algorithm, it further achieved fast, high‐quality reconstruction of 64 × 64‐pixel images under NIR illumination, at a sampling rate as low as 10%, demonstrating its potential for broadband, filter‐free, and AI‐assisted single‐pixel imaging in emerging intelligent sensing and computational imaging applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"52 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123774","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

Dual‐Comb Spectroscopy With Fully Controlled Repetition Rate and Offset Frequency of Quantum Cascade Laser Frequency Combs 双梳光谱与完全控制重复率和量子级联激光频率梳的偏移频率

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-08 DOI: 10.1002/lpor.71993

Jie Liu, Philip Skochinski, Lawrence Hughes, Yamac Dikmelik, Kevin Lascola, Gerard Wysocki

{"title":"Dual‐Comb Spectroscopy With Fully Controlled Repetition Rate and Offset Frequency of Quantum Cascade Laser Frequency Combs","authors":"Jie Liu, Philip Skochinski, Lawrence Hughes, Yamac Dikmelik, Kevin Lascola, Gerard Wysocki","doi":"10.1002/lpor.71993","DOIUrl":"https://doi.org/10.1002/lpor.71993","url":null,"abstract":"Quantum cascade laser frequency combs (QCL‐FCs) are promising light sources for sensing applications, thanks to their convenient electrical pumping, chip‐scale footprint, high optical power, and relatively broadband emission in the mid‐infrared molecular fingerprint spectral region. However, under free‐running operation, QCL‐FCs exhibit frequency instabilities that limit their use as metrological‐grade sources, primarily due to insufficient control of the repetition rate ( f rep ) and the carrier envelope offset frequency ( f ceo ), which are required for unambiguous calibration of the optical frequency axis. Here, precise and independent control of the two comb parameters is demonstrated by combining radio‐frequency (rf) injection for repetition rate control with thermal tuning of the offset frequency. While the thermal tuning of free‐running combs follows the conventional comb model with f ceo < f rep , the frequency tuning behavior under rf injection is fundamentally different and requires a modified comb model with an anchor frequency ( f 0 ) that is directly related to f ceo but is located at much higher optical frequency within the emission bandwidth of the comb. Full frequency control of both parameters enables gapless, high‐resolution dual‐comb spectroscopy of N 2 O over the entire 80 cm −1 comb bandwidth, and provides pathways toward fully controlled QCL‐FC systems that require minimal external hardware and enable precision mid‐infrared spectroscopy.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"27 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123775","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

Synthesis and Dynamic Control of Acousto‐Optic Multifocal Extended‐Depth‐of‐Focus Beams Based on the Superposition of Multi‐Chirp Signals 基于多啁啾信号叠加的声光多焦扩展聚焦深度光束合成与动态控制

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-08 DOI: 10.1002/lpor.72019

Yihang Chu, Jing Ouyang, Junchi Huang, Feixiang Ren, Haoran Wang, Guangzhi Zhu, Yangyang Liu

{"title":"Synthesis and Dynamic Control of Acousto‐Optic Multifocal Extended‐Depth‐of‐Focus Beams Based on the Superposition of Multi‐Chirp Signals","authors":"Yihang Chu, Jing Ouyang, Junchi Huang, Feixiang Ren, Haoran Wang, Guangzhi Zhu, Yangyang Liu","doi":"10.1002/lpor.72019","DOIUrl":"https://doi.org/10.1002/lpor.72019","url":null,"abstract":"Long depth‐of‐focus (DOF) beams maintain stable focusing over an extended axial range and are important for advanced microscopy, volumetric imaging, optical manipulation, and laser processing, particularly high‐aspect‐ratio glass micro‐hole drilling. Conventional methods typically rely on static or mechanical optical control, limiting high‐speed adjustment of the DOF, focal position, and axial intensity distribution. Acousto‐optic deflectors (AODs) provide an inertia‐free, high‐speed, and programmable platform for dynamic axial optical field control. By applying multi‐chirp signal superposition to a pair of orthogonally arranged AODs, acoustically induced gratings can be synthesized to achieve dynamic control of multifocal extended‐DOF beams. However, the superposition of multiple axially focused sub‐beams with different frequencies produces a beat effect, causing periodic fluctuations in the intensity and spot morphology of the composite optical field and thus affecting its stable generation. To address this issue, phase locking is combined with temporal synchronization between the laser pulses and acoustic field to suppress the adverse influence of the beat effect on the composite optical field. Experimentally, a 40.0 mm effective DOF with a 73.4 µm spot radius is achieved, along with dynamic control of axial focal position and intensity distribution. This method provides a high‐speed, programmable approach for dynamic axial optical field control.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"30 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123776","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

Temporal Faraday Effect Enabled by Floquet‐Induced Chirality 由Floquet诱导手性实现的时间法拉第效应

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2026-10-08 DOI: 10.1002/lpor.72029

Neng Wang, Guo Ping Wang

{"title":"Temporal Faraday Effect Enabled by Floquet‐Induced Chirality","authors":"Neng Wang, Guo Ping Wang","doi":"10.1002/lpor.72029","DOIUrl":"https://doi.org/10.1002/lpor.72029","url":null,"abstract":"The Faraday effect is a hallmark of nonreciprocal light–matter interactions and traditionally requires magnetic bias or intrinsically chiral media. Here we introduce a temporal chiral metamaterial in which an effective chiral response is generated entirely by Floquet modulation, without magnetic fields or structurally chiral constituents. The medium is realized by periodically rotating the principal axes of the permittivity and permeability tensors in time. Using a nonlocal temporal effective medium theory derived from Hamiltonian homogenization, we show that the resulting chiral parameter is an odd function of the wavevector, giving rise to intrinsic nonreciprocity despite Onsager‐symmetric constitutive relations. This Floquet‐induced chirality produces a temporal Faraday effect, in which the polarization plane of a linearly polarized wave rotates continuously in time. The direction and magnitude of the rotation are programmable through the modulation sequence and remain invariant under both spatial and temporal reversal. Our work establishes Floquet‐induced chirality as a fundamentally new mechanism for nonreciprocal light control and opens a route to reconfigurable polarization manipulation in time‐modulated photonic systems.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"45 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":"149123838","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