Laser & Photonics Reviews最新文献

{"title":"Self‐Powered Perovskite Photovoltaic Photodetector Enabled Hyper‐Sensitive Reflectance Confocal Microscopy","authors":"Shuhao Shen, Yujin Liu, Lan Ma, Zhong Ji, Dongxu Lin, Xueli Chen","doi":"10.1002/lpor.202500147","DOIUrl":"https://doi.org/10.1002/lpor.202500147","url":null,"abstract":"This study introduces an advanced reflectance confocal microscopy (RCM) system that integrates a perovskite‐based photodetector to achieve substantial improvements in imaging performance. The photodetector exhibits an external quantum efficiency of 86.3% at 520 nm, a dynamic range of 132 dB, and operates self‐powered with a dark current of only 0.38 nA, ensuring low noise and high efficiency. The system delivers a resolution of 1.10 µm and supports 3D imaging at a frame rate of 4 fps, enabling precise and high‐speed imaging. Demonstrated applications include wafer topography, biological tissue imaging, and photovoltaic cell grid analysis, highlighting its versatility across diverse scientific and industrial fields. These results underscore the potential of perovskite‐based photodetectors to transform RCM technology by providing superior imaging quality, simplified system integration, and broader applicability, paving the way for advancements in biomedical research, materials science, and other high‐resolution imaging applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"14 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311564","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":"Flexible Mn(II)‐Based Halide Scintillation Screen for High‐Resolution X‐Ray Imaging of Nonplanar Objects","authors":"Zhe Feng, Haixia Cui, Yurou Yan, Shujuan Liu, Qiang Zhao","doi":"10.1002/lpor.202500885","DOIUrl":"https://doi.org/10.1002/lpor.202500885","url":null,"abstract":"X‐ray imaging and detection technologies based on scintillators are extensively utilized in both medical diagnosis and industrial nondestructive inspection. However, traditional rigid planar scintillation screens are susceptible to vignetting and distortion problems because of the inhomogeneity of X‐ray dose distribution. Flexible scintillation screens based on highly efficient metal‐based halides can effectively solve the above‐mentioned problems. In this work, a series of novel 0D Mn(II)‐based halides ((C<jats:sub>5</jats:sub>H<jats:sub>5</jats:sub>N)<jats:sub>2</jats:sub>MnBr<jats:sub>4</jats:sub>, (C<jats:sub>7</jats:sub>H<jats:sub>10</jats:sub>N)<jats:sub>2</jats:sub>MnBr<jats:sub>4</jats:sub>, (C<jats:sub>8</jats:sub>H<jats:sub>12</jats:sub>N)<jats:sub>2</jats:sub>MnBr<jats:sub>4</jats:sub> and (C<jats:sub>9</jats:sub>H<jats:sub>14</jats:sub>N)<jats:sub>2</jats:sub>MnBr<jats:sub>4</jats:sub>) are designed and synthesized with small‐sized pyridine derivatives. Increasing the Mn–Mn distances through an alkyl chain modification strategy can effectively suppress the nonradiative transition and enhance exciton utilization, and thus their photoluminescence quantum yields (PLQYs) are significantly enhanced from 58.76% to 99.64%. (C<jats:sub>9</jats:sub>H<jats:sub>14</jats:sub>N)<jats:sub>2</jats:sub>MnBr<jats:sub>4</jats:sub> crystals with the highest PLQYs demonstrate superior X‐ray scintillation properties with a high relative light yield of 57739 photons MeV<jats:sup>−1</jats:sup>, which is 2.6 times higher than the commercial scintillators (LuAG: Ce). Moreover, the flexible scintillation screen composed of (C<jats:sub>9</jats:sub>H<jats:sub>14</jats:sub>N)<jats:sub>2</jats:sub>MnBr<jats:sub>4</jats:sub> and thermoplastic polyurethane achieves a high resolution of 17.8 lp mm<jats:sup>−1</jats:sup> and is successfully applied for nonplanar objects to reduce image distortion. This work not only provides a strategy for improving PLQYs of Mn(II)‐based halides but also demonstrates their practical applications for X‐ray imaging of non‐planar objects.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"11 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311566","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":"Adaptive Structured-Light 3D Surface Imaging with Cross-Domain Learning (Laser Photonics Rev. 19(12)/2025)","authors":"Xinsheng Li,&nbsp;Shijie Feng,&nbsp;Wenwu Chen,&nbsp;Ziheng Jin,&nbsp;Qian Chen,&nbsp;Chao Zuo","doi":"10.1002/lpor.202570047","DOIUrl":"https://doi.org/10.1002/lpor.202570047","url":null,"abstract":"<p><b>Enhancing Structured-Light 3D Imaging</b></p><p>A cross-domain learning framework for adaptive structured-light 3D imaging is proposed by Shijie Feng, Qian Chen, Chao Zuo, and co-workers in article number 2401609; it enhances generalization across diverse systems and environments. The method incorporates a mixture-of-experts architecture, significantly improving performance over traditional specialist and generalist DNNs, and advancing robust AI-driven optical metrology.\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 12","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lpor.202570047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300171","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":"Precision LIDAR Using Dual‐Comb Breathing Spectra","authors":"Jingsheng Huang, Jindong Wang, Yang Wang, Wei Du, Weiqiang Wang, Ziwen Li, Sai T. Chu, Wenfu Zhang, Tao Zhu","doi":"10.1002/lpor.202500169","DOIUrl":"https://doi.org/10.1002/lpor.202500169","url":null,"abstract":"Light detection and ranging (Lidar) is indispensable in a variety of fields, encompassing basic science, manufacturing, production, and daily life. Here, from a different perspective, A phenomenon is observed occurring between the optical frequency comb (OFC) and obstacles within the optical frequency domain, which is referred to “breathing spectra,” inspired by the dynamic shape alterations with varying lengths, reminiscent of the oscillatory patterns seen during breathing. Precision length metrology is achieved by retracing the peak positions of dual‐microcomb breathing spectra (DBS) with different repetition rates back to the stable comb optical modes, enabling the attainment of nanoscale accuracy across long distance in a single‐shot measurement while consuming fewer computational resources. Minimum Allan deviations of 1.08 nm at a distance of 0.5 m, and 21.8 nm at a distance of 217 m are experimentally demonstrated. The DBS methodology eliminates the need for auxiliary ranging and other complex steps while being CMOS‐compatible and offering the potential for single‐chip integration, will thus emerge as a competitive and novel alternative in the realm of length metrology applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"14 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311557","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":"Polarization‐Directed Construction of 3D Spiral Plasmonic Micropillars for Enhanced Chiral Photoluminescence","authors":"Yong Tan, Yuxiang Chen, Xiaolin Lu, Zhibo Dang, Zheyu Fang, Tao Ding","doi":"10.1002/lpor.202401268","DOIUrl":"https://doi.org/10.1002/lpor.202401268","url":null,"abstract":"Due to the enhanced chiral light‐matter interactions along the propagation direction of circularly polarized light, 3D chiral plasmonic nanostructures have shown exceptional chiroptic response for chiral sensing and luminescence. However, the lack of proper design and fabrication strategy causes great difficulties for achromatic chiroptic response with a high g‐factor in the visible region. Here a facile generation of 3D spiral plasmonic micropillars based on laser direct writing with a spiral vector beam is introduced. These plasmonic micropillars exhibit a dissymmetric factor (g‐factor) up to 1.0 at 800 nm, which gives rise to strong chiral plasmon photoluminescence (PL) with an achromatic luminescence dissymmetry (g<jats:sub>lum</jats:sub>) up to 0.4 across the visible region (500–750 nm). Furthermore, cathodoluminescence (CL) characterizations of these spiral micropillars reveal a location‐selective chiral inversion of the CL spectra, which is related to the variation of the superchiral fields within the spiral micropillars. This work not only establishes a facile, efficient and enantioselective paradigm for the optical generation of 3D chiral plasmonic nanostructures but also reveals the crucial role of superchiral field in both the chiral PL and CL, which is significant for the development of superior chiral luminescence devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"14 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311562","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":"Towards a Function‐Scalable Quantum Network With Multiplexed Energy‐Time Entanglement","authors":"Xiao Xiang, Jingyuan Liu, Bingke Shi, Huibo Hong, Xizi Sun, Yuting Liu, Runai Quan, Tao Liu, Shougang Zhang, Wei Zhang, Ruifang Dong","doi":"10.1002/lpor.202500658","DOIUrl":"https://doi.org/10.1002/lpor.202500658","url":null,"abstract":"Quantum networks, which hinge on the principles of quantum mechanics, are revolutionizing the domain of information technology. The vision for quantum networks involves the efficient distribution and utilization of quantum resources to support diverse applications, yet existing protocols face compatibility issues that limit the functional scalability. In this paper, a framework is proposed for the compatible and complementary implementation of quantum time synchronization and quantum cryptography, by multiplexing the same energy‐time entangled biphotons and quantum channel. A proof‐of‐principle experiment between two independent nodes across a 120 km fiber is demonstrated, which achieves sub‐picosecond synchronization stability based on the quantum two‐way time transfer protocol. Simultaneously, this synchronization provides the required timing for enabling dispersive optics quantum key distribution with an average finite‐size secure key rate of 73.8 bits per second. Furthermore, the performance degradation induced by asymmetric delay attacks in the quantum channel is effectively mitigated by the parallel quantum time synchronization procedure. This work advances energy‐time entanglement potential and paves the way for a resource‐efficient, function‐scalable, and highly compatible quantum network.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"6 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311563","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":"Laser‐Induced Rare Earth Up‐Conversion Luminescent Plastics","authors":"Dale Xie, Chenqi Yi, Zongsong Gan","doi":"10.1002/lpor.202500659","DOIUrl":"https://doi.org/10.1002/lpor.202500659","url":null,"abstract":"Rare earth elements‐doped glass‐ceramics have been widely studied in recent decades due to their excellent up‐conversion luminescence properties. However, the preparation method of glass‐ceramics limits its application, and it is difficult to realize up‐conversion luminescence by laser lithography in a glass medium. Therefore, it is necessary to find new materials to replace the up‐conversion glass‐ceramics to realize in situ up‐conversion luminescence. Here, up‐conversion nanocrystals (NaYF<jats:sub>4</jats:sub>) have been successfully in situ generated with different crystal phases in transparent plastics by using a femtosecond laser, and realize the precise tuning of the fluorescence intensity of up‐conversion luminescence. Furthermore, up‐conversion luminescence at different excitation wavelengths is realized by doping with rare earth elements such as Er, Tm, and Ho. The stability test shows that the laser‐generated up‐conversion nanocrystals inside the plastics can maintain stable up‐conversion luminescence in solvents and high temperatures. This breakthrough technology has led to the development of a variety of precisely controllable up‐conversion luminescent plastics, which provides a practical technical route for the application of new luminescent solid media.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"23 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311558","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":"Solution‐Repair‐Assisted Femtosecond Laser Crystallization of Fluoroaluminate Glass for Customized UV–Visible–Infrared Brittle Micro‐Diffractive Optics","authors":"Qi‐Song Li, Han‐Chen Zhang, Hong‐Ming Zheng, Long Zhang, Yi Liu","doi":"10.1002/lpor.202500414","DOIUrl":"https://doi.org/10.1002/lpor.202500414","url":null,"abstract":"A novel solution‐repair‐assisted femtosecond laser crystallization method is reported for Fluoroaluminate (AlF<jats:sub>3</jats:sub>) glass, with exceptional ultraviolet–visible‐mid‐infrared transmission characteristics, for fabricating wide‐wavelength micro‐optical elements. This innovative approach achieves remarkable optical quality through amorphous‐to‐crystalline phase transition, effectively mitigating the longstanding challenge of surface roughness in laser‐processed brittle materials. A systematic investigation is conducted into the effects of various laser parameters (e.g., laser energy, repetition rate, and scanning velocity) on the fabricated AlF<jats:sub>3</jats:sub> glass microstructure after crystallization. Leveraging these data, diverse micro‐diffractive optical elements are successfully fabricated on AlF<jats:sub>3</jats:sub> glass, including 1D and 2D gratings with tunable duty cycles, square grating, circular grating, and Dammann grating. All these elements demonstrated exceptional optical diffraction performance. Additionally, by implementing precise control of structural features, a regulated micro‐diffractive optical device with tailored structural dimensions is designed and fabricated. As a demonstration, a Fresnel zone plate (FZP) with varying widths and radii for each concentric circle is fabricated, achieving a fabrication error below 1 µm. The focusing and imaging performance of AlF<jats:sub>3</jats:sub> glass FZP is validated across ultraviolet, visible and infrared wavelengths, showcasing its superior optical capabilities. This work establishes a new paradigm for the fabrication of wide‐wavelength brittle micro‐optical elements and opens new possibilities for multi‐spectrum photonics.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"93 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311561","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":"The Temperature Imaging Study Based on the Time‐Resolved Luminescence Measurement of Mn4+‐Doped Lu3Al5O12 Phosphor","authors":"Liting Qiu, Qian Zhang, Zhicheng Liao, Yonghu Chen, Xiantao Wei, Min Yin","doi":"10.1002/lpor.202500246","DOIUrl":"https://doi.org/10.1002/lpor.202500246","url":null,"abstract":"Nowadays, optical thermometry with a non‐contact operation mode and fast response is crucial in micro/nano electronics. However, the existing temperature measurement methods have the problem of low sensitivity. Herein, a temperature sensing method based on time‐resolved integrated intensity ratio (TRIIR) of Mn<jats:sup>4+</jats:sup>‐doped Lu<jats:sub>3</jats:sub>Al<jats:sub>5</jats:sub>O<jats:sub>12</jats:sub> (LuAG) phosphor is proposed for the purpose of improving the temperature sensitivity of optical temperature measurement. Compared with the thermometry based on fluorescence lifetime of LuAG: Mn<jats:sup>4+</jats:sup>, the relative sensitivity () is significantly improved. Furthermore, the is further boosted by changing the experimental condition. Specifically, under the experimental condition of and , the value reaches 11.86% K<jats:sup>−1</jats:sup> at 325 K, and the temperature resolution can reach 0.07 K at 310 K. At the same time, the shift of the optimal temperature measurement range toward the high‐temperature zone can be achieved by reducing . Finally, with the help of a fluorescence microscope and an ICCD camera, the temperature imaging capability of LuAG: Mn<jats:sup>4+</jats:sup> phosphor based on the TRIIR method with a high spatial resolution (2.7 µm) is verified on a nickel circuit. These results reveal that the LuAG: Mn<jats:sup>4+</jats:sup> phosphor based on the temperature sensing method of TRIIR is very promising for future temperature imaging applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"22 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144304684","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":"NH4+‐Induced Formation of Hexagonal‐K1.5(NH4+)0.5SiF6:Mn4+ with Polarized Zero‐Phonon Line Emission","authors":"Zeyu Lyu, Hao‐Ran Zhao, Hao Dong, Shuai Wei, Mingxiang You, Chunchun Chen, Ling‐Dong Sun, HongPeng You, Chun‐Hua Yan","doi":"10.1002/lpor.202500653","DOIUrl":"https://doi.org/10.1002/lpor.202500653","url":null,"abstract":"Polarized luminescence is extensively applied in many cutting‐edge areas, implying the practical significance of exploring the polarization behavior of various emitters. Herein, for the first time, the polarized emission of Mn<jats:sup>4+</jats:sup> ion is disclosed in a hexagonal K<jats:sub>2</jats:sub>SiF<jats:sub>6</jats:sub> matrix, which is obtained through the NH<jats:sub>4</jats:sub><jats:sup>+</jats:sup>‐induced phase transition from the cubic counterpart. The exact component of the hexagonal matrix is determined to be K<jats:sub>1.5</jats:sub>(NH<jats:sub>4</jats:sub>)<jats:sub>0.5</jats:sub>SiF<jats:sub>6</jats:sub>. After doping Mn<jats:sup>4+</jats:sup>, the K<jats:sub>1.5</jats:sub>(NH<jats:sub>4</jats:sub>)<jats:sub>0.5</jats:sub>SiF<jats:sub>6</jats:sub>:Mn<jats:sup>4+</jats:sup> exhibits intensive zero‐phonon line (ZPL) emission. Importantly, the ZPL emission shows a linear polarization with a degree of polarization (DOP) of 0.65, and its polarization direction is aligned with the <jats:italic>c</jats:italic>‐axis of the crystal. The polarization behavior arises from the Mn<jats:sup>4+</jats:sup> ions occupying lattice sites with anisotropic structure along the <jats:italic>c</jats:italic>‐axis. The rest of Mn<jats:sup>4+</jats:sup>‐emissions, which incorporate phonons, show the same polarization direction but with much weaker polarization (DOP ≈ 0.1). Moreover, when excited by the 488 nm light propagating perpendicularly to the crystal <jats:italic>c</jats:italic>‐axis, all the emissions show a periodic fluctuation with the polarized angle of excitation. This work conducts a pioneering and detailed study of the polarization behavior of Mn<jats:sup>4+</jats:sup>‐emission in a newly established hexagonal fluoride, opening up the research of polarized luminescence in the abundant Mn<jats:sup>4+</jats:sup>‐doped phosphors.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"32 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144304683","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}