Laser & Photonics Reviews最新文献_第6页

Ab Initio Calculations Driven Discovery of BaLiF3:Mn4+ Fluoride Phosphor with Zero-Phonon Line Peak at 630.5 nm for Ultrawide Color Gamut Display 超宽色域显示用零声子线峰BaLiF3:Mn4+氟化荧光粉的发现

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-21 DOI: 10.1002/lpor.202500381

Chuang Zhang, Hong Ming, Yayun Zhou, Yuanjing Wang, Weichao Wang, Enhai Song, Xiao-Bao Yang, Qinyuan Zhang

{"title":"Ab Initio Calculations Driven Discovery of BaLiF3:Mn4+ Fluoride Phosphor with Zero-Phonon Line Peak at 630.5 nm for Ultrawide Color Gamut Display","authors":"Chuang Zhang, Hong Ming, Yayun Zhou, Yuanjing Wang, Weichao Wang, Enhai Song, Xiao-Bao Yang, Qinyuan Zhang","doi":"10.1002/lpor.202500381","DOIUrl":"https://doi.org/10.1002/lpor.202500381","url":null,"abstract":"The discovery of Mn4+-activated fluoride red phosphors with longer emission wavelength is crucial for ultrawide color gamut displays. However, since the emission of Mn4+ (2E → 4A2) is constrained by the strong ionic interaction between Mn4+ and F-, it is a significant challenge to tune the emission to meet the requirement of Recommendation BT.2020 (Rec. 2020) red-light standard (0.708, 0.292). Herein, density functional theory (DFT) calculations are utilized to determine the 2E emission energy of Mn4+ in fluorides; thus, a red phosphor BaLiF3:Mn4+ with a record long-wavelength zero-phonon line (ZPL) emission at 630.5 nm and CIE chromaticity coordinates of (0.706, 0.294) is demonstrated. The apparent redshift of the emission of BaLiF3:Mn4+ (ZPL = 630.5 nm) compared to that of commercial K2SiF6:Mn4+ (ZPL = 621 nm) is attributed to the high symmetry of the host lattice and the relatively strong electronegativity of the neighboring Li atoms around Mn4+. A prototype display device with an ultra-color gamut of 94.2% Rec.2020 is assembled by using the BaLiF3:Mn4+ based white mini-LED backlight module. This study not only provides a promising candidate in the field of display, but also provides valuable references for accelerating the discovery of new and promising phosphors.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"15 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114413","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

Ultrarobust and Precise Luminescence Thermometry Enabled by the Combination of Reassembled Emission Spectra With Denoising Neural Network (Laser Photonics Rev. 19(10)/2025) 重组发射光谱与去噪神经网络相结合实现超强精确发光测温（激光光子学Rev. 19(10)/2025）

IF 9.8 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-21 DOI: 10.1002/lpor.202570040

Wei Xu, Wang Li, Junqi Cui, Chunhai Hu, Longjiang Zheng, Zhiguo Zhang, Zhen Sun

引用次数: 0

Ultracompact Achromatic Spiral Phase Contrast Imager on a CMOS Chip CMOS芯片上的超紧凑消色差螺旋相衬成像仪

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-21 DOI: 10.1002/lpor.202500239

Xinghao Wang, Chaowei Wang, Jincheng Ni, Shunli Liu, Hao Wu, Yuan Tao, Yusheng Jin, Xianglong Wang, Jiawen Li, Yanlei Hu, Jiaru Chu, Shih‐Chi Chen, Haoran Ren, Dong Wu

{"title":"Ultracompact Achromatic Spiral Phase Contrast Imager on a CMOS Chip","authors":"Xinghao Wang, Chaowei Wang, Jincheng Ni, Shunli Liu, Hao Wu, Yuan Tao, Yusheng Jin, Xianglong Wang, Jiawen Li, Yanlei Hu, Jiaru Chu, Shih‐Chi Chen, Haoran Ren, Dong Wu","doi":"10.1002/lpor.202500239","DOIUrl":"https://doi.org/10.1002/lpor.202500239","url":null,"abstract":"Spiral phase contrast (SPC) imaging, renowned for its label‐free imaging capabilities, has garnered great attention in microscopy, biomedical science, and material science. Despite the adoption of ultrathin metasurfaces as substitutes for conventional SPC optical components, the overall optical systems remain bulky and suffer from chromatic aberration owing to the light dispersion. Here, an ultracompact achromatic SPC imager (UASI) integrated onto a complementary metal‐oxide‐semiconductor chip is presented. The UASI combines vertically integrated refractive and diffractive optical elements, including a refractive microlens for high‐resolution imaging and a diffractive spiral microlens to compensate for chromatic aberration, thereby achieving achromatic SPC imaging. This UASI, fabricated by 3D direct laser writing, realizes edge‐enhanced imaging with high efficiency (≈60%) under broadband light illumination (450–660 nm). The demonstration paves the way for the utilization of hybrid micro‐optics in advanced imaging, providing an ultracompact achromatic solution for edge‐enhanced imaging, object recognition, biomedical, and material science applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"3 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144113586","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

Evolution of Topological Polarization Singularity in a Photonic Crystal Slab 光子晶体板中拓扑极化奇异性的演化

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-21 DOI: 10.1002/lpor.202500555

Lujun Huang, Andrey E. Miroshnichenko

{"title":"Evolution of Topological Polarization Singularity in a Photonic Crystal Slab","authors":"Lujun Huang, Andrey E. Miroshnichenko","doi":"10.1002/lpor.202500555","DOIUrl":"https://doi.org/10.1002/lpor.202500555","url":null,"abstract":"The polarization singularity in momentum space, known as a new type of topological defect, has garnered tremendous attention across the nanophotonic community. Bound states in the continuum (BICs) and unidirectional guided resonances (UGRs) in a photonic crystal slab are two typical examples of polarization singularities. In this work, the fundamental connections among merging BICs, accidental BICs, and UGRs are established in a 1D dielectric photonic crystal slab. It is shows that UGRs in a slanted grating are rooted in merging BICs with a topological charge q = 0. By deviating the thickness from the critical value that forms merging BICs, two pairs of accidental BICs with opposite topological charges q = +1 and q = −1 are created along kx-axis and ky-axis in the first Brillouin zone, respectively. Moreover, such accidental BICs along kx-axis can be evolved into UGRs if the tilted angles of two side walls are properly chosen. Also, it is shows that the sum of two tilted angles remains almost constant for UGRs, indicating an easy way of finding UGRs. Additionally, UGRs can be converted into accidental BICs by tuning the grating's thickness when the slanted grating has an inversion symmetry despite the broken mirror symmetry. Finally, it is shows that such BICs-UGRs transition is quite general, and works for high-order modes. Following the same designing strategy, more examples are found in both 1D metagratings (TE and TM cases) and 3D metasurfaces. The results deepen the understanding of the relationship between BICs and UGRs.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"25 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114387","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

Switching on Dark Excitons in WSe2 Monolayer at Room Temperature with Plasmonic Au Nanodisk‐on‐Mirror Cavities 在室温下用等离子体金纳米盘-镜面腔打开WSe2单层中的暗激子

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-20 DOI: 10.1002/lpor.202402012

Xinyue Xia, He Huang, Shasha Li, Ruoqi Ai, Zhiyuan Tian, Feng Yan, Lei Shao, Jianfang Wang

{"title":"Switching on Dark Excitons in WSe2 Monolayer at Room Temperature with Plasmonic Au Nanodisk‐on‐Mirror Cavities","authors":"Xinyue Xia, He Huang, Shasha Li, Ruoqi Ai, Zhiyuan Tian, Feng Yan, Lei Shao, Jianfang Wang","doi":"10.1002/lpor.202402012","DOIUrl":"https://doi.org/10.1002/lpor.202402012","url":null,"abstract":"Dark excitons in transition metal dichalcogenide (TMDC) monolayers (MLs) are promising candidates for Bose–Einstein condensation and quantum information processing owing to their long lifetime. Previous studies employing nanoparticle‐on‐mirror and tip‐on‐mirror cavities have successfully enabled room‐temperature dark exciton emissions through the Purcell effect. However, these approaches suffer from mode complexity, the geometric variability of the contact facet, and the extreme precision of the tip spacing, which limit further control over emission intensities. Herein, the switching‐on of dark excitons in WSe2 ML at room temperature is demonstrated using plasmonic Au nanodisk‐on‐mirror cavities with the ML sandwiched in between. The hybrid structures combine simplicity, reproducibility, and flexible control over the dark exciton emission intensity. The dark exciton emissions are controlled by two orthogonal plasmon modes with strongly confined out‐of‐plane‐polarized electric field and can be switched on and off. The emission intensity ratio between dark excitons and bright excitons is enhanced up to 22 times by flexibly controlling the nanodisk diameter to match the plasmon energy to the dark exciton energy. The plasmonic nanodisk‐on‐mirror cavities feature enlarged field enhancement, narrowed mode linewidths, and precise geometry, providing a facile platform for switching on and controlling dark exciton emissions in TMDC MLs under readily accessible conditions.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"32 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144104316","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 Lithium Niobate Integrated Microwave Photonic Beamforming Chip 宽带铌酸锂集成微波光子波束形成芯片

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-19 DOI: 10.1002/lpor.202500219

Yan-Yan Qin, Xiao-Wen Gu, Hui-Yan Ye, Wen-Hao Dong, Jie Tang, Guang Qian, Xiao-Yang Zhang, Tang-Sheng Chen, Tong Zhang

引用次数: 0

Minimalist Optical Neural Computing: Optical Diffractive Neural Network by 2-level Quantized Pixel-Wise Optical Encoding 极简光学神经计算：2级量化逐像素光学编码的光学衍射神经网络

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-19 DOI: 10.1002/lpor.202402303

Xianjin Liu, Ting Ma, Qiwen Bao, Zhanying Ma, Guodong Gao, Jun-Jun Xiao

{"title":"Minimalist Optical Neural Computing: Optical Diffractive Neural Network by 2-level Quantized Pixel-Wise Optical Encoding","authors":"Xianjin Liu, Ting Ma, Qiwen Bao, Zhanying Ma, Guodong Gao, Jun-Jun Xiao","doi":"10.1002/lpor.202402303","DOIUrl":"https://doi.org/10.1002/lpor.202402303","url":null,"abstract":"Diffractive optical neural networks (DONNs) offer high-speed, energy-efficient artificial intelligence (AI) computation but face challenges with optical misalignment and model-to-reality gaps. In this work, an ultra-simplified DONN architecture based on a digital mirror device (DMD) and camera, dubbed as m-DONN, is introduced and experimentally validated. Notably, within the m-DONN framework, the DMD acts as both the input layer and the solitary hidden layer, which is trained with 2-level quantization, markedly differing from the configuration found in traditional DONNs. This minimalism and binarization of the diffraction layer can result in a highly nonlinear correlation between the encoded input information and the output. A 10-classification accuracy of over 82% is achieved on the MNIST dataset in both theoretical modeling and experimental measurements, utilizing over 10 000 test samples. Furthermore, this m-DONN is employed to construct an online reinforcement learning agent capable of dynamically stabilizing a virtual inverted pendulum. The inherent simplicity of the proposed optical computing system, coupled with the cost-effective implementation using either active or passive key optical components, not only demonstrates an extremely powerful yet simple optical neuromorphic setup but also paves the way for the acceleration of optoelectronic AI applications across a variety of scenarios.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"55 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144088069","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

Lead-Free Rare-Earth Based Halide Double Perovskites: From Fundamentals, Progress to Perspectives 无铅稀土基卤化物双钙钛矿：从基础、进展到前景

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-19 DOI: 10.1002/lpor.202500113

Wenxiu Gao, Nadeem Abbas, Yuxiang Xin, Jianru Wang, Xiachu Xiao, Yajun Qi, Tianjin Zhang, Zhuolei Zhang

{"title":"Lead-Free Rare-Earth Based Halide Double Perovskites: From Fundamentals, Progress to Perspectives","authors":"Wenxiu Gao, Nadeem Abbas, Yuxiang Xin, Jianru Wang, Xiachu Xiao, Yajun Qi, Tianjin Zhang, Zhuolei Zhang","doi":"10.1002/lpor.202500113","DOIUrl":"https://doi.org/10.1002/lpor.202500113","url":null,"abstract":"Lead-free halide double perovskites are rapidly gaining prominence as a nontoxic, highly stable, and versatile alternative to traditional lead-based perovskites, notable for their superior optoelectronic properties. Among these, rare-earth-based halide double perovskites (RHDPs) notably stand out. Comprising fifteen lanthanide elements with distinctive electron configurations of [Xe] 4f n−1 5d0−1 6s2 (n = 1–15), alongside the group-IIIB elements Yttrium (Y) and Scandium (Sc), rare-earth elements (RE) exhibit great potential. These 17 RE ions (Sc3+, Y3+, and La3+–Lu3+) offer a vast landscape for crafting numerous RHDPs, poised to exhibit properties that surpass and diversify beyond current double perovskite standards. Key to their functionality are unique luminescence properties driven by self-trapped exciton (STE) recombination, and 4f→4f and 5d→4f transitions, enabling applications in visible and infrared light emission through downshifting and up-conversion. This review thoroughly articulates the foundational properties of RHDPs, including their structural-property relationships, synthesis methods, optical characteristics, and durability. It highlights recent advancements in their applications across a range of fields such as visible and near-infrared light emitting diodes (Vis&NIR LEDs), sensors, and anti-counterfeiting technologies. Additionally, the review discusses the prevailing challenges associated with RHDP materials and their applications, offering insights and future directions.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144088091","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

Programmable Photonic Simulator for Spin Glass Models 用于自旋玻璃模型的可编程光子模拟器

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-19 DOI: 10.1002/lpor.202402160

Yuxuan Sun, Weiru Fan, Xingqi Xu, Da-Wei Wang, Shi-Yao Zhu, Hai-Qing Lin

{"title":"Programmable Photonic Simulator for Spin Glass Models","authors":"Yuxuan Sun, Weiru Fan, Xingqi Xu, Da-Wei Wang, Shi-Yao Zhu, Hai-Qing Lin","doi":"10.1002/lpor.202402160","DOIUrl":"https://doi.org/10.1002/lpor.202402160","url":null,"abstract":"Spin glasses featured by frustrated interactions and metastable states have important applications in chemistry, material sciences and artificial neural networks. However, the solution of the spin glass models (SGMs) is hindered by the computational complexity that exponentially increases with the sample size. Spatial photonic Ising machine (SPIM) based on spatial light modulation can speed up the calculation by obtaining the Hamiltonian from the modulated light intensity. A key challenge in such SPIMs is the large-scale generalization to various spin couplings and higher dimensions. Here, a Fourier-mask method is invented and validated to program the spin couplings in SPIMs, which enables to observe the phase transition of various SGMs and study the critical phenomena with unprecedented sample size. It is also demonstrated that the 3D Ising model, which has not been analytically solved, can be effectively constructed and simulated in 2D Fourier-mask SPIM. This strategy provides a flexible route to tuning couplings and dimensions of statistical spin models, and improves the applicability of SPIMs in neural networks and combinatorial optimization problems.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144088068","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

Push‐Pull Effect Enables Large‐Area Lead‐Free Perovskite Light‐Emitting Diodes via Electron Directional Transfer 推拉效应通过电子定向转移实现大面积无铅钙钛矿发光二极管

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-19 DOI: 10.1002/lpor.202500727

Jie Wang, Dongyuan Han, Bin Zhao, Ziang Zang, Huiyu Ji, Lang Liu, Ning Wang

{"title":"Push‐Pull Effect Enables Large‐Area Lead‐Free Perovskite Light‐Emitting Diodes via Electron Directional Transfer","authors":"Jie Wang, Dongyuan Han, Bin Zhao, Ziang Zang, Huiyu Ji, Lang Liu, Ning Wang","doi":"10.1002/lpor.202500727","DOIUrl":"https://doi.org/10.1002/lpor.202500727","url":null,"abstract":"Tin (Sn) perovskites have emerged as viable candidates for high‐performance, lead‐free perovskite light‐emitting diodes (PeLEDs). However, the limited availability of efficient and stable Sn perovskites, and the development of large‐area Sn PeLEDs encourage further research. Here, FPEA2SnI4 (FPEAI, 4‐fluoro‐phenethylammonium iodide) perovskite is reported as a potential emitter for PeLEDs. To overcome the anisotropic carrier transport in layered FPEA2SnI4 perovskites, an electronic push‐pull effect strategy is introduced by incorporating 6‐amino‐4‐hydroxy‐2‐naphthalenesulfonic acid (γ acid) molecule in FPEA2SnI4 perovskites. The unique electronically push‐pull configuration of γ acid establishes a cross‐layer electron transfer channel, which mitigates electron aggregation within the organic layers, enhances electron injection and directional transfer, and effectively promotes radiative recombination. Furthermore, multifunctional γ acid provides multiple interaction sites for Sn perovskites, reducing defect state density and stabilizing FPEA2SnI4 perovskites. Leveraging the enhanced robustness of FPEA2SnI4 films with γ acid, a large‐area Sn PeLED with an active area of 2.25 cm2, achieves a maximum luminance (Lmax) of 371 cd m−2, a peak external quantum efficiency (EQE) of 15.49%, and an operational half‐lifetime of 71.6 h at 100 cd m−2. These findings underscore the application potential of Sn PeLEDs in the realms of solid‐state lighting and planar display.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"41 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144088219","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