Laser & Photonics Reviews最新文献

{"title":"On‐Chip Brillouin Amplifier in Suspended Lithium Niobate Nanowaveguides","authors":"Simin Yu, Ruixin Zhou, Guangcanlan Yang, Qiang Zhang, Huizong Zhu, Yuanhao Yang, Xin‐Biao Xu, Baile Chen, Chang‐Ling Zou, Juanjuan Lu","doi":"10.1002/lpor.202500027","DOIUrl":"https://doi.org/10.1002/lpor.202500027","url":null,"abstract":"Thin film lithium niobate (TFLN) has emerged as a leading material platform for integrated nonlinear photonics, enabling transformative applications such as broadband Kerr soliton microcomb and high‐speed electro‐optic modulation. While stimulated Brillouin scattering has been numerically proposed in TFLN, achieving sufficient gain remains challenging due to the requirement for the simultaneous low optical and mechanical losses of the device. In this work, the angle‐dependence of Brillouin gain coefficients in x‐cut membrane‐suspended TFLN nanowaveguides is systematically characterized, taking into account the anisotropy of the photoelastic coefficients in lithium niobate. A Brillouin gain coefficient of 129.5 is reported and the Brillouin frequency tuning is further demonstrated through variations in either pump frequency or chip operating temperature. Based on the suspended TFLN nanowaveguide, by optimizing the confinement of both photonic and phononic modes, a Brillouin amplifier with a record‐high gain of 8.5 dB is achieved. This result not only validates the feasibility of strong guided Brillouin interaction using suspended TFLN nanowaveguides, but also paves the way for novel on‐chip sensing and signal processing applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884790","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":"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<jats:sup>−13</jats:sup> A Hz<jats:sup>−1/2</jats:sup>), a high on/off ratio (1.58 × 10<jats:sup>7</jats:sup>), 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}

{"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 S<jats:sub>1</jats:sub>‐T<jats:sub>n</jats:sub> (n ≥ 2) annihilation (S<jats:sub>1</jats:sub>T<jats:sub>n</jats:sub>A) is the primary quenching process, accompanied by certain T<jats:sub>1</jats:sub>‐T<jats:sub>1</jats:sub> annihilation (T<jats:sub>1</jats:sub>T<jats:sub>1</jats:sub>A) and S<jats:sub>1</jats:sub>‐polaron (P) annihilation (S<jats:sub>1</jats:sub>PA), and T<jats:sub>1</jats:sub>T<jats:sub>1</jats:sub>A 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}

{"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, <jats:italic>d</jats:italic>‐<jats:italic>f</jats:italic> 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 <jats:italic>d</jats:italic>‐<jats:italic>f</jats:italic> transition is parity‐allowed, resulting in short excited‐state lifetimes of the complexes in the nanosecond (ns) scale. Second, the 5<jats:italic>d</jats:italic> 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<jats:sup>−2</jats:sup>. However, OLEDs based on <jats:italic>d</jats:italic>‐<jats:italic>f</jats:italic> 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 <jats:italic>d</jats:italic>‐<jats:italic>f</jats:italic> transition lanthanide complexes is presented, covering four distinct ligands types. Finally, an in‐depth discussion explores the relationship between ligand structures, <jats:italic>d</jats:italic>‐<jats:italic>f</jats:italic> 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}

{"title":"Cascaded Micro‐Ring Resonators for Low‐Crosstalk High‐Density Photonic Convolutional Computing","authors":"Yulong Huang, Zhenzhen Jiang, Jiawei Gu, Ganzhangqin Yuan, Yu Zheng, Ke Li, Mu Ku Chen, Lei Wang, Zihan Geng","doi":"10.1002/lpor.202401874","DOIUrl":"https://doi.org/10.1002/lpor.202401874","url":null,"abstract":"Photonic neural networks (PNNs) based on micro‐ring resonators (MRRs) have attracted significant attention for their compactness and low power consumption. However, there remains substantial room for improvement in spectral density and network performance. Here, a novel PNN architecture is introduced based on double‐stage serially coupled ring resonators (DCRRs), incorporating specially designed optoelectronic signal modulation and detection circuits, achieving a PNN with high spectral density, robustness, and accuracy. The DCRR achieves an extinction ratio of 55 dB and a narrow bandwidth of 0.17 nm. Through systematic innovation, it addresses the challenge of representing negative numbers in optoelectronic neural networks caused by the non‐negativity of light intensity, enabling positive and negative weighting operations using a single photodiode‐based architecture. Experimental validation in digital and cell edge extraction and classification tasks demonstrates high accuracies above 95%. Compared to single‐ring computing architectures with the same parameters, this method significantly reduces inter‐channel crosstalk and spectral spacing, leading to a sixfold increase in spectral density and achieving a compute density of 2.48 TOPS/mm<jats:sup>2</jats:sup>. Furthermore, utilizing DCRR‐based nonlinear activation results in faster convergence speed and higher recognition accuracy. The method provides the technical foundation for achieving high‐density, high‐precision photonic computing.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"3 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875984","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":"Symmetry Disruption and Charge Localization: Unraveling Roles of Sb3+ in Enhancing Luminescence of Rare Earth Double Perovskites","authors":"Haiyan Wang, Jiandong Yao, Zixi Yin, Sheng Cao, Jialong Zhao, Xinxin Han, William Weiyong Yu, Ruosheng Zeng","doi":"10.1002/lpor.202500082","DOIUrl":"https://doi.org/10.1002/lpor.202500082","url":null,"abstract":"Co-doping of rare earth (RE) and ns² metal ions with in double perovskites shows great promise for applications in anti-counterfeiting, display, and radiation detection. However, the intrinsic physical nature for the enhanced photoluminescence remains unclear. Herein, we use gadolinium-based double perovskite as the model and propose an effective strategy for co-doping RE3+ with Sb3+ ions (5s²) to modulate the photoluminescence and energy transfer. The incorporation of Sb³⁺ increases the absorption cross section, thereby overcoming the limitation of 4f–4f narrowband absorption transitions. Furthermore, Sb³⁺ acts as a bridge for energy transfer, significantly facilitating this process. Density functional theory calculations reveal that the introduction of Sb³⁺ disrupts the symmetry of the [RECl₆]^3– octahedra, leading to increased distortion. Additionally, the electrons in the [RECl₆]^3– octahedra exhibit stronger localization in the Sb³⁺/RE³⁺ co-doped system, which enhances the Cl^––RE³⁺ charge transfer process, thereby increasing the radiative transition rates and resulting in a high photoluminescence quantum yield. Our research elucidates the physical essence of Sb³⁺ enhanced luminescence in RE-based perovskites from both experimental and theoretical perspectives, providing valuable insights into modulation of luminescent properties and understanding of underlying physical mechanisms in RE³⁺ doped luminescent materials.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"14 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143872624","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":"Scalable Open‐Air Synthesis of Mg2+‐Doped Lead‐Free Cs3Cu2Cl5 Nanocrystals for High‐Performance Green LEDs","authors":"Yang Tang, Qingyu Xie, Xuanming Zhang, Jiwei Ma, Hao Xie, Yongfeng Liu, Liang Zhao, Dongdong Yan, Xiaoyu Wang, Weixiang Ye","doi":"10.1002/lpor.202500430","DOIUrl":"https://doi.org/10.1002/lpor.202500430","url":null,"abstract":"Cs<jats:sub>3</jats:sub>Cu<jats:sub>2</jats:sub>Cl<jats:sub>5</jats:sub> nanocrystals (NCs) have emerged as promising optoelectronic materials owing to their efficient self‐trapped exciton (STE) emission. However, their limited environmental stability has significantly constrained their application in light‐emitting diodes (LEDs). In this work, a facile ambient‐air synthesis strategy is developed for Mg<jats:sup>2</jats:sup>⁺‐doped Cs<jats:sub>3</jats:sub>Cu<jats:sub>2</jats:sub>Cl<jats:sub>5</jats:sub> NCs that simultaneously addresses both stability and emission efficiency challenges. Remarkably, optimal Mg<jats:sup>2</jats:sup>⁺ doping (20%) enhances the photoluminescence quantum yield (PLQY) from 28.69% to 59.3%. Comprehensive theoretical investigations through density of states (DOS) calculations and ab initio molecular dynamics (AIMD) simulations demonstrate that Mg<jats:sup>2</jats:sup>⁺ doping induces bandgap narrowing for enhanced radiative recombination while reinforcing the crystal lattice stability. When integrated with a UV LED chip, the optimized NCs enable the fabrication of high‐performance green LEDs exhibiting outstanding luminance (17 281 cd m<jats:sup>−</jats:sup><jats:sup>2</jats:sup>) and excellent color stability (CIE coordinates: 0.354, 0.518). This study provides not only a practical synthetic approach for stable copper halide NCs but also valuable insights for designing efficient STE emitters for optoelectronic applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"5 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875985","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":"Temperature‐Dependent Spectroscopy and Laser Performance of Yellow Tb:YLF Lasers with 36% Slope Efficiency at Room Temperature and 61% at 100 K","authors":"Moritz Badtke, Sascha Kalusniak, Stefan Püschel, Hiroki Tanaka, Christian Kränkel","doi":"10.1002/lpor.202402019","DOIUrl":"https://doi.org/10.1002/lpor.202402019","url":null,"abstract":"An efficient cryogenic and room‐temperature yellow and cryogenic red Tb<jats:sup>3+</jats:sup>:LiYF<jats:sub>4</jats:sub> laser is presented and a detailed analysis of the relevant temperature‐dependent spectroscopic properties from room temperature to liquid helium temperature for this gain medium is provided. Cooling from room temperature to 78 K increases the peak absorption cross sections in the pump band at 486 nm in the cyan‐blue significantly and the peak emission cross sections in the yellow by a factor of five, while slightly increasing the fluorescence lifetime. An improved growth procedure of the laser crystal enables an increased room‐temperature slope efficiency of 36% at 587.4 nm. At 100 K, slope efficiencies of up to 61% are obtained and optical‐to‐optical efficiencies of 55% at a wavelength of 581.4 nm, doubling all values previously reported for yellow Tb<jats:sup>3+</jats:sup>:LiYF<jats:sub>4</jats:sub> lasers and establishing this system as the most efficient yellow laser source to date. During these experiments, continuous‐wave laser operation at 624 nm is realized as well with a slope efficiency of 47% at 78 K. The study enhances the understanding of the processes currently limiting the room‐temperature performance of Tb<jats:sup>3+</jats:sup> lasers, which facilitates improved laser performance by tailored gain materials even in the temperature range accessible to Peltier cooling.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"8 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875986","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-Q Monolithic Ring Resonators in Low-Loss Barium Titanate on Silicon","authors":"Amogh Raju, Divya Hungund, Dan Krueger, Zuoming Dong, Zarko Sakotic, Agham B. Posadas, Alexander A. Demkov, Daniel Wasserman","doi":"10.1002/lpor.202402086","DOIUrl":"https://doi.org/10.1002/lpor.202402086","url":null,"abstract":"The extremely large nonlinear optical response and CMOS compatibility of barium titanate make it particularly appealing for high-density, wide-bandwidth, and reduced power consumption optical components and devices for chip-scale photonics applications. However, without a dramatic reduction in material loss, barium titanate is unlikely to be a competitive alternative to existing nonlinear materials used in integrated photonics. This work investigates loss mechanisms in monolithic photonic structures fabricated from barium titanate grown epitaxially by RF-sputtering on silicon-on-insulator substrates. Barium titanate waveguide loss is investigated using three photonic architectures, and straight waveguide loss of less than &lt;span data-altimg=\"/cms/asset/6bd30242-97c6-4cc2-91e9-19d3ea4447e9/lpor202402086-math-0001.png\"&gt;&lt;/span&gt;&lt;mjx-container ctxtmenu_counter=\"2\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"&gt;&lt;mjx-math aria-hidden=\"true\" location=\"graphic/lpor202402086-math-0001.png\"&gt;&lt;mjx-semantics&gt;&lt;mjx-mrow data-semantic-annotation=\"clearspeak:unit\" data-semantic-children=\"0,2,7\" data-semantic-content=\"8,9\" data-semantic- data-semantic-role=\"implicit\" data-semantic-speech=\"0.15 d upper B c m Superscript negative 1\" data-semantic-type=\"infixop\"&gt;&lt;mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"10\" data-semantic-role=\"float\" data-semantic-type=\"number\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mn&gt;&lt;mjx-mspace data-semantic- data-semantic-operator=\"infixop,⁢\" data-semantic-parent=\"10\" data-semantic-role=\"space\" data-semantic-type=\"operator\" style=\"width: 0.16em;\"&gt;&lt;/mjx-mspace&gt;&lt;mjx-mi data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"10\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;mjx-mo data-semantic-added=\"true\" data-semantic- data-semantic-operator=\"infixop,⁢\" data-semantic-parent=\"10\" data-semantic-role=\"multiplication\" data-semantic-type=\"operator\" style=\"margin-left: 0.056em; margin-right: 0.056em;\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mo&gt;&lt;mjx-msup data-semantic-children=\"3,6\" data-semantic- data-semantic-parent=\"10\" data-semantic-role=\"unknown\" data-semantic-type=\"superscript\"&gt;&lt;mjx-mi data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"7\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;mjx-script style=\"vertical-align: 0.363em;\"&gt;&lt;mjx-mrow data-semantic-annotation=\"clearspeak:simple\" data-semantic-children=\"5\" data-semantic-content=\"4\" data-semantic- data-semantic-parent=\"7\" data-semantic-role=\"negative\" data-semantic-type=\"prefixop\" size=\"s\"&gt;&lt;mjx-mo data-semantic- data-semantic-operator=\"prefixop,−\" data-semantic-parent=\"6\" data-semantic-role=\"subtraction\" data-semantic-type=\"operator\" rspace=\"1\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mo&gt;&lt;mjx-mn data-semantic-annotation=\"clear","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"12 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862054","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":"Interfacial Molecular Engineering of Rare Earth-Doped Nanocrystals: Basic Principles, Construction Strategies, and Advanced Applications","authors":"Guiqiang Pu, Junnan Song, Zhenjie Cheng, Yangmin Tang, Chengbin Kang, Jiacheng Wang","doi":"10.1002/lpor.202500156","DOIUrl":"https://doi.org/10.1002/lpor.202500156","url":null,"abstract":"Interfacial molecular engineering of rare earth-doped nanocrystals (RE NCs) by incorporating surface organic emitters is receiving widespread attention in the area of functional nanomaterials. The resulting organic–inorganic nanoconjugates are able to integrate individual strengths and show exciting optical/electrical/magnetic functionalities. However, there is a shortage of systematic reviews reporting the most recent progress of interfacial molecular engineering of RE NCs. Thereby, this review presents a comprehensive and timely perspective on recent advances in interfacial molecular engineering of RE NCs. The crucial theoretical knowledge is first summarized, ranging from the luminescence mechanism of organic molecules/RE NCs to the energy transfer mechanisms at the organic–inorganic interface. Construction protocols for coupling organic molecules and RE NCs are then discussed, including chemical coordination and physical adsorption pathways. In particular, beyond traditional bio-imaging/therapy, advanced applications of RE NCs enabled by interface molecular engineering are outlined, not limited to photoexcited 3D printing, light-induced photochromism/deformation, individual micro-modification, and dynamic procedure regulation. Finally, challenges and perspectives are presented to accelerate future progress and provide research guidance for the interfacial molecular engineering of RE NCs. This review provides a deeper and broader understanding of the interfacial molecular engineering of RE NC and pushes this technology closer to practical applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"6 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143862055","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}