IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-27 DOI: 10.1002/lpor.202500052

Zheng Peng, Yibo Lv, Boao Chen, Wanjun Li, Bowei Chen, Yipeng An, Yong Fu, Wenjie Mai, Chuanxi Zhao

{"title":"Achieving Full Field‐of‐View Single‐Detector Imaging with Scattering Medium and Triple‐Cation Perovskite Photodetectors","authors":"Zheng Peng, Yibo Lv, Boao Chen, Wanjun Li, Bowei Chen, Yipeng An, Yong Fu, Wenjie Mai, Chuanxi Zhao","doi":"10.1002/lpor.202500052","DOIUrl":"https://doi.org/10.1002/lpor.202500052","url":null,"abstract":"A broad field‐of‐view (FOV) is essential for imaging, enabling the capture of larger scenes and finer details. Herein, Fourier single‐detector (FSI) imaging through an aperture obstacle is explored and FOV expansion with the aid of ground glass is demonstrated. The dual light‐blocking effects of the aperture obstacle and ground glass necessitate a high‐performance, ultralow‐noise detector for weak‐light imaging. Through precise interfacial engineering, a triple‐cation perovskite photodetector is developed, achieving an ultralow noise current density (2.26 × 10−13 A Hz−1/2), a high on/off ratio (1.58 × 107), and a fast response (1.83 µs), enabling effective FSI in scattering medium. The principle behind the broadened FOV is elucidated through geometric optics, the “scattering lens” effect and differential imaging. The dependence of FOV on the distance between the ground glass and the aperture obstacle is further investigated. Notably, full FOV reconstruction is achieved when the ground glass is placed directly behind the obstacle. This research offers new insights into the scattering lens effect in FSI, overcoming the bottleneck of traditional imaging techniques in achieving wide‐view imaging through aperture obstacles. This work offers a promising approach to wide‐field imaging in complex environments, enhancing potential application of FSI under scattering conditions.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"24 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878088","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

Modeling and Analysis of Exciton Dynamics on “Hot Exciton” Process in Blue Fluorescent Organic Light‐Emitting Diodes 蓝色荧光有机发光二极管“热激子”过程激子动力学建模与分析

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-27 DOI: 10.1002/lpor.202500367

Dian Xie, Pengbo Han, Baoxi Li, Jianhui Pan, Ningyan Ou, Xianfeng Qiao, Dezhi Yang, Qian Sun, Yanfeng Dai, Zhiming Wang, Anjun Qin, Ben Zhong Tang, Yuguang Ma, Dongge Ma

{"title":"Modeling and Analysis of Exciton Dynamics on “Hot Exciton” Process in Blue Fluorescent Organic Light‐Emitting Diodes","authors":"Dian Xie, Pengbo Han, Baoxi Li, Jianhui Pan, Ningyan Ou, Xianfeng Qiao, Dezhi Yang, Qian Sun, Yanfeng Dai, Zhiming Wang, Anjun Qin, Ben Zhong Tang, Yuguang Ma, Dongge Ma","doi":"10.1002/lpor.202500367","DOIUrl":"https://doi.org/10.1002/lpor.202500367","url":null,"abstract":"A comprehensive understanding on exciton dynamics in organic light‐emitting diodes (OLEDs) is of great significance for evaluating their electroluminescence (EL) performance. “Hot exciton” organic emissive materials have attracted widespread interest due to their highly efficient reverse intersystem crossing (hRISC), but their underlying exciton dynamics remain elusive. Herein, an exciton dynamic model on “hot exciton” process in blue fluorescent OLEDs is proposed. The model perfectly reproduces the external quantum efficiency (EQE) versus current density (EQE‐J) characteristics in blue fluorescent OLEDs based on four hot exciton materials, and the fundamental kinetic rates are well obtained. This model reveals that S1‐Tn (n ≥ 2) annihilation (S1TnA) is the primary quenching process, accompanied by certain T1‐T1 annihilation (T1T1A) and S1‐polaron (P) annihilation (S1PA), and T1T1A is mainly attributed to the loss caused by internal conversion (IC). The transient electroluminescence (TrEL) measurements further demonstrate that the decline in singlets is due to the aforementioned quenching. Importantly, the device lifetime exhibits a perfect positive linear relationship with the obtained kinetic rates, thereby simply enabling to predict the lifetime of OLEDs. This work contributes to improving the physical understanding on “hot exciton” behaviors, greatly aiding the development of high performance blue fluorescent OLEDs based on hot exciton materials.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"32 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878092","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

Improving room-temperature fretting wear performance of brittle TiAl alloy via laser shock peening without coating 无涂层激光冲击强化提高脆性TiAl合金室温微动磨损性能

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-04-27 DOI: 10.1016/j.optlastec.2025.113031

Huailin Zhang , Zhenyang Cao , Wang Zhao , Guangni Zhou , Enqi Zhang , Sihai Luo , Weifeng He

引用次数: 0

Bosonic two-stroke heat engines with polynomial nonlinear coupling 多项式非线性耦合的玻色子二冲程热机

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-04-27 DOI: 10.1088/2058-9565/adcd98

G Chesi, C Macchiavello and M F Sacchi

引用次数: 0

Recent Advances in d‐f Transition Lanthanide Complexes for Organic Light‐Emitting Diodes: Insights Into Structure–Luminescence Relationships 用于有机发光二极管的d - f跃迁镧系配合物的最新进展：对结构-发光关系的见解

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-27 DOI: 10.1002/lpor.202402198

Jie Li, Yanbo Zhao, Donghong Yu, Chuanlang Zhan

{"title":"Recent Advances in d‐f Transition Lanthanide Complexes for Organic Light‐Emitting Diodes: Insights Into Structure–Luminescence Relationships","authors":"Jie Li, Yanbo Zhao, Donghong Yu, Chuanlang Zhan","doi":"10.1002/lpor.202402198","DOIUrl":"https://doi.org/10.1002/lpor.202402198","url":null,"abstract":"Recently, d‐f transition lanthanide complexes have emerged as promising emitters with high exciton utilization efficiency (EUE) and short excited state lifetime simultaneously, demonstrating potential applications in organic light‐emitting diodes (OLEDs). First, the d‐f transition is parity‐allowed, resulting in short excited‐state lifetimes of the complexes in the nanosecond (ns) scale. Second, the 5d orbitals are sensitive to ligand‐field environments, and their splitting can be finely tuned by the ligand field, enabling precise control of emission colors. Third, the spin‐allowed single‐electron transitions, such as those in open‐shell Ce(III) and Eu(II) complexes, help address the efficiency limitations arising from singlet and triplet excitons. To date, Ce(III)‐based blue OLEDs have achieved external quantum efficiencies (EQEs) exceeding 20% and brightness levels over 30 000 cd m−2. However, OLEDs based on d‐f transition lanthanide complexes still face significant challenges, including color tunablility, photoluminescence quantum yields (PLQYs), and stability. This review first provides an introduction to OLEDs and luminescent materials. Next, an overview of the ligands used in d‐f transition lanthanide complexes is presented, covering four distinct ligands types. Finally, an in‐depth discussion explores the relationship between ligand structures, d‐f transition lanthanide complexes, and their photoluminescence (PL) and electroluminescence (EL) performance.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"53 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878090","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

The merger of a black hole with a cosmological horizon 黑洞与宇宙视界的合并

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2025-04-27 DOI: 10.1088/1361-6382/adce51

Maxime Gadioux and Hangzhi Wang

引用次数: 0

On the cutoff scale identification of FLRW cosmology in asymptotically safe gravity 渐近安全重力下FLRW宇宙学的截止尺度辨识

IF 3.5 3区物理与天体物理

Classical and Quantum Gravity Pub Date : 2025-04-27 DOI: 10.1088/1361-6382/adcdba

Chiang-Mei Chen, Rituparna Mandal and Nobuyoshi Ohta

引用次数: 0

Linear frame dragging along one spatial dimension 沿着一个空间维度拖动的线性框架

IF 2.1 4区物理与天体物理

General Relativity and Gravitation Pub Date : 2025-04-27 DOI: 10.1007/s10714-025-03407-z

Marco Alberto Javarone, Luciano Pietronero

引用次数: 0

Investigations on the residual stress and mechanical properties of DH36 steel repaired by laser shock forging assisted arc repair method 激光冲击锻辅助电弧修复DH36钢残余应力及力学性能研究

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-04-27 DOI: 10.1016/j.optlastec.2025.113058

Yuanqing Chi, Kangsheng Zheng, Qi Zhang, Zhijie Zhou, Aoyu Yan, Baijun Zhang, Yongkang Zhang

{"title":"Investigations on the residual stress and mechanical properties of DH36 steel repaired by laser shock forging assisted arc repair method","authors":"Yuanqing Chi, Kangsheng Zheng, Qi Zhang, Zhijie Zhou, Aoyu Yan, Baijun Zhang, Yongkang Zhang","doi":"10.1016/j.optlastec.2025.113058","DOIUrl":"10.1016/j.optlastec.2025.113058","url":null,"abstract":"<div><div>The laser shock forging assisted arc repair (LSF-AR) technology is newly developed. To validate the effectiveness of this technology, the residual stress and mechanical properties of DH36 steel repaired by arc repair (AR) and LSF-AR were comparatively investigated through numerical simulation and experiment. The simulated deformation values of the repaired sample were first compared with the experimental measured data to confirm the validity of the simulation settings. Afterwards, a comparative analysis was conducted on the residual stress distributions acquired from both numerical simulations and experimental measurements, which were found in good agreement. The results indicated that the AR sample exhibited significant tensile residual stress (TRS) in the weld seam, but LSF-AR notably reduced this TRS, with the TRS at the weld seam center decreasing from 395.4 MPa to 204.3 MPa. Compared to the AR sample, the LSF-AR sample showed improved tensile strength and elongation. This study validated the feasibility of applying LSF method during AR processes to achieve low residual stress and high-performance repair.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"189 ","pages":"Article 113058"},"PeriodicalIF":4.6,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhancing Quantum Teleportation of the X-type Systems Under Pauli Channel with Memory 利用记忆体增强泡利通道下x型系统的量子隐形传态

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-04-26 DOI: 10.1007/s10773-025-05984-w

MeiJiao Wang, LianZhen Cao, Yang Yang, Bing Sun, Xia Liu, JiaQiang Zhao

引用次数: 0

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