{"title":"Molecular Interface Reconstruction via Coupled Coordination and Hydrogen‐Bond Interactions for Efficient and Stable Deep‐Red Perovskite Light‐Emitting Diodes","authors":"Zhennan Tian, Jun Wu, Yong Yang, Lunyao Pan, Zexi Chen, Tianxiang Lv, Qiao Luo, Xuehang Chen, Lei Yang, Ding Zheng, Junsheng Yu","doi":"10.1002/lpor.72189","DOIUrl":"https://doi.org/10.1002/lpor.72189","url":null,"abstract":"All‐inorganic CsPbI <jats:sub>3</jats:sub> perovskites have emerged as promising emitters for deep‐red perovskite light‐emitting diodes (PeLEDs) due to their suitable bandgap and favorable optoelectronic properties. However, achieving highly efficient and stable devices remains challenging, partly due to the complex surface chemistry and interfacial processes in perovskite films. Here, we develop a choline halide molecule to regulate multiple surface‐active sites at the CsPbI <jats:sub>3</jats:sub> interface. Choline halide molecules coordinate with undercoordinated Pb <jats:sup>2+</jats:sup> sites and form hydrogen‐bonded molecules with deprotonated Guanidinium (Gua) species, enabling simultaneous defect passivation and surface stabilization. These interactions promote the formation of low‐dimensional interfacial structures, suppress defect‐mediated non‐radiative recombination, and improve carrier dynamics in CsPbI <jats:sub>3</jats:sub> films. Consequently, choline bromide‐treated CsPbI <jats:sub>3</jats:sub> PeLEDs achieve a peak external quantum efficiency of 24.8% and an operational T <jats:sub>50</jats:sub> lifetime of 88.6 h at 100 mA cm <jats:sup>−2</jats:sup> . Moreover, extending this strategy to mixed bromide‐iodide perovskite emitters further yielded a 695 nm deep‐red emission and an operational T <jats:sub>50</jats:sub> lifetime of 119.8 h under a constant current density of 100 mA cm <jats:sup>−2</jats:sup> . This work provides insights into molecular regulation of complex perovskite interfaces and offers an approach for developing efficient and stable perovskite optoelectronic devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"29 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374167","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":"Synergistic Self‐Crystallization and Surface Passivation Enable Enhanced Thermostability and Photostability of Pure‐Green CsPbBr 3 Quantum‐Dot Glasses for Backlit Displays","authors":"Juqing Li, Yanhong Fan, Tongtong Xuan, Jing Wang, Haoran Zhang, Wei Li, Chaofan Hu, Jianle Zhuang, Bingfu Lei, Yingliang Liu, Xuejie Zhang","doi":"10.1002/lpor.72186","DOIUrl":"https://doi.org/10.1002/lpor.72186","url":null,"abstract":"CsPbBr <jats:sub>3</jats:sub> perovskites quantum dots (QDs) have garnered significant attention as next‐generation green emitter materials due to their high photoluminescence quantum yield (PLQY) and exceptional narrow band emission. However, their performance is still largely constrained by their photostability and thermostability. Here, we report a synergistic strategy of in situ self‐crystallization and surface passivation of CsPbBr <jats:sub>3</jats:sub> QDs in phosphosilicate glass (QDs@glass) by introducing Al <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> . During the reaction, Al <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> modified the glass network structure, which not only triggered the self‐crystallization growth of the CsPbBr <jats:sub>3</jats:sub> QDs but was also associated with changes in the local Pb coordination and defect environment involving phosphate‐derived oxygen species, thereby reducing non‐radiative recombination and contributing to the enhanced stability of the CsPbBr <jats:sub>3</jats:sub> QDs@glass. The optimized CsPbBr <jats:sub>3</jats:sub> QDs@glass retains 64.0 ± 2.6% (mean ± SD, <jats:italic>n</jats:italic> = 3) of its initial photoluminescence intensity at 100°C, while the integrated green‐emission intensity of a single COB‐packaged device remains close to its initial level during a 1440 h continuous‐operation test. The material was further demonstrated in an LCD backlight, achieving a wide color gamut of 90.52% Rec.2020. Our findings provide an interesting idea for constructing surface passivation on quantum dots inside inorganic glasses and will further promote the commercial use of CsPbBr <jats:sub>3</jats:sub> perovskites QDs.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"11 1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374168","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":"Silicon‐Nitride‐Based Laser Directly Driving Computationally Lightweight 600 Gbps/λ Optical Transmission","authors":"Yilin Wu, Yan Ma, Qiyin Xue, Hongfei Zhang, Sihan Deng, Tieshi Wei, Deqi Li, Sigang Yang, Hongwei Chen, Zhenming Yu, Minghua Chen","doi":"10.1002/lpor.72163","DOIUrl":"https://doi.org/10.1002/lpor.72163","url":null,"abstract":"Driven by 6G connectivity and AI computing, coherent optical transmission is expanding beyond long‐haul networks toward a broad range of lightweight links. Silicon photonic devices, particularly integrated lasers, offer advantages in ultra‐high capacity, and low power consumption. However, their practical deployment remains hindered by the gain‐noise trade‐off, as well as the huge coherent digital signal processing (DSP) consumption. To address this challenge, we report an integrated Si <jats:sub>3</jats:sub> N <jats:sub>4</jats:sub> ‐based laser unifying high power, high coherence, and wide tunability, enabling high‐capacity, computationally lightweight optical transmission. It integrates a dual‐external‐cavity laser with an extended semiconductor optical amplifier (SOA), featuring a high‐Q subwavelength‐defect‐assisted microring for considerable linewidth reduction despite SOA degradation. The demonstrated laser maintains an intrinsic linewidth below 20 Hz @ 50 mW across 53 nm wavelength range, and presents a maximum fiber‐port output power of 171 mW. It directly drives coherent optical transmission with a line rate of up to 600 Gbps per wavelength. Furthermore, we highlight its low‐linewidth property for reducing carrier phase estimation computation in coherent DSP to 10 <jats:sup>−5</jats:sup> compared to using commercial tunable lasers. This work paves the way toward computationally lightweight optical transmission, opening new opportunities for data‐center interconnects, inter‐satellite links and beyond.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"7 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374170","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}
Fan‐Chuan Lin, Qian Huang, Yi‐Long Li, Rui‐Yi Zhao, Qiong‐Hua Wang, Jiang‐Hao Xiong, Di Wang
{"title":"Large‐Depth‐of‐Focus and High‐Quality Layer‐Based Holographic 3D Display System Based on Liquid Crystal Axicon","authors":"Fan‐Chuan Lin, Qian Huang, Yi‐Long Li, Rui‐Yi Zhao, Qiong‐Hua Wang, Jiang‐Hao Xiong, Di Wang","doi":"10.1002/lpor.72201","DOIUrl":"https://doi.org/10.1002/lpor.72201","url":null,"abstract":"As a promising 3D display technology, holographic display can reconstruct full light field information of 3D scenes, including depth cues. While depth‐dependent defocus naturally provides these depth cues, the limited depth of focus (DOF) restricts the axial range of image clarity, posing a significant challenge for layer‐based holographic displays. In this work, we innovatively propose a large‐DOF and high‐quality layer‐based holographic 3D display system based on a liquid crystal axicon. The core components of the proposed system include a spatial light modulator (SLM) loaded with high‐quality holograms and a specially designed liquid crystal axicon. As for the hardware, a liquid crystal axicon is designed based on the principle of non‐diffracting Bessel beam generation to break the DOF limitations. As for the software, a multi‐plane hologram optimization method is proposed to suppress boundary crosstalk, which cooperates with the liquid crystal axicon to realize large‐DOF and high‐quality layer‐based holographic 3D reconstruction. The proposed system achieves reconstruction within a continuous focal segment of 2 cm, representing over a two‐times increase compared to reported large‐DOF systems. This work effectively promotes the applications of holographic displays in diverse fields such as industry, education, and entertainment.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"17 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374190","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":"Room‐Temperature Superfluorescence From Solid‐State Materials","authors":"Ping Huang, Xiaoying Shang, Wei Zhang, Yudan Xie, Xia Mao, Yixuan Lu, Wei Zheng, Xueyuan Chen","doi":"10.1002/lpor.72200","DOIUrl":"https://doi.org/10.1002/lpor.72200","url":null,"abstract":"Superfluorescence (SF) is an exceptional cooperative optical phenomenon that has attracted enduring interest in quantum optics. Historically, the observation of SF has been restricted to extreme conditions, such as cryogenic temperatures or high magnetic fields, owing to the fragility of macroscopic quantum coherence and high dephasing rates, particularly in solid‐state systems. Recent advances in nanoscience and cutting‐edge instrumentation, however, have enabled the realization of room‐temperature SF (RT‐SF) in solid‐state matrices, including hybrid perovskite thin films, lanthanide‐doped upconversion nanoparticles, and quantum dot‐based mesocrystalline superlattices. These breakthroughs overcome long‐standing limitations and open new avenues for exploring SF under ambient conditions. In this context, a deeper understanding of the underlying physical mechanism is essential to guide material design, optimize performance, and enable practical applications. This review highlights the very recent progress in RT‐SF within solid‐state materials, focusing on the photophysical principles and optical signatures that define the phenomenon. Key aspects discussed include the establishment of dipole−dipole correlations, dominant dephasing processes, prerequisites for achieving RT‐SF, and unique emission features. We also outline current challenges and future directions aimed at harnessing the full potential of such an intriguing quantum optical effect.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"37 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374191","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}
Kaiyang Liu, Di Wang, Wentao Liu, Peiyu Zeng, Dingli Guo, Wenhui Wang, Zhenhua Ni, Junpeng Lu
{"title":"Non‐Pixelated Spatial‐Spectral Imaging via Electrically Tunable Lateral Photocarrier Dynamics in a MoS 2 /p‐Ge Position‐Sensitive Detector","authors":"Kaiyang Liu, Di Wang, Wentao Liu, Peiyu Zeng, Dingli Guo, Wenhui Wang, Zhenhua Ni, Junpeng Lu","doi":"10.1002/lpor.72176","DOIUrl":"https://doi.org/10.1002/lpor.72176","url":null,"abstract":"Spectral sensitivity is essential for advanced visual perception, including object identification, material discrimination, and high‐fidelity color reproduction. However, conventional spectral imaging systems often rely on pixel‐level wavelength‐selective filters, sacrificing spatial resolution and limiting spectral discrimination, or on vertically stacked heterostructures with electrically tunable band alignment, which increase fabrication complexity and array nonuniformity. Here, we present a non‐pixelated spatial‐spectral position‐sensitive detector (SSPSD) based on a large‐area MoS <jats:sub>2</jats:sub> /p‐Ge heterostructure that integrates spatial positioning and spectral discrimination within a single continuous junction. By combining the lateral photovoltaic effect with electrically tunable band alignment, the device converts wavelength‐dependent photocarrier generation and lateral transport into position‐resolved electrical signals for scanning reconstruction. The SSPSD achieves an estimated noise‐limited position localization precision of 0.54 µm under 1550 nm illumination at 500 µW and broadband sensitivity extending to 1700 nm. Spatial‐spectral imaging is demonstrated by resolving three overlapping character patterns illuminated at 550, 1310, and 1550 nm, respectively. These results establish bias‐modulated lateral photocarrier transport as a compact route toward non‐pixelated spatial‐spectral imaging with wavelength‐channel discrimination.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"64 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374197","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}
Lehui Wang, Yi Liao, Xueqian Zhang, Tong Wu, Yao Li, Xiaoyuan Hao, Quan Xu, Liyuan Liu, Jianqiang Gu, Jiaguang Han
{"title":"Bilayer Dielectric Metasurfaces for Non‐Multiplexing Full‐Space Terahertz Wavefront Control","authors":"Lehui Wang, Yi Liao, Xueqian Zhang, Tong Wu, Yao Li, Xiaoyuan Hao, Quan Xu, Liyuan Liu, Jianqiang Gu, Jiaguang Han","doi":"10.1002/lpor.72177","DOIUrl":"https://doi.org/10.1002/lpor.72177","url":null,"abstract":"Metasurfaces, as two‐dimensional ultrathin artificial structures, have significantly facilitated the manipulation of electromagnetic waves. Recent advances show that metasurface functionalities can be further promoted from performing in only the transmission/reflection space to simultaneously and independently in both spaces. However, related studies so far mostly rely on electromagnetic multiplexing strategies where two intrinsically incident waves are required, i.e., the transmission and reflection functionalities are realized at different electromagnetic parameter conditions. Here, we demonstrate a bilayer all‐dielectric metasurface design scheme based on Si‐SiO <jats:sub>2</jats:sub> ‐Si meta‐atoms capable of achieving non‐multiplexing full‐space 1‐bit phase control for wavefront engineering of one incident wave in the terahertz regime. Three types of full‐space metasurface devices are experimentally characterized, which can perform holographic imaging, beam focusing, and beam diffusion in the transmission space, while exhibiting ±first‐order diffraction in the reflection space, respectively. The results exhibit excellent agreement with the theory. Our design offers a promising route for flexible and compact full‐space terahertz wavefront control devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"78 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374198","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}
Qingtao Fang, Bohan Li, Yang Liu, Zhuoqun Wang, Ning Lu, Yuechen Jia, Feng Chen
{"title":"Slanted Lithium Niobate Meta‐Atoms Enable Nonlinear Chiroptical Response With Electro‐Optic Tunability","authors":"Qingtao Fang, Bohan Li, Yang Liu, Zhuoqun Wang, Ning Lu, Yuechen Jia, Feng Chen","doi":"10.1002/lpor.72214","DOIUrl":"https://doi.org/10.1002/lpor.72214","url":null,"abstract":"Chiral metaphotonics offers a powerful route to boost intrinsically weak optical activity, yet the dynamic control of nonlinear chiroptical responses remains a formidable challenge. Here, we propose and experimentally demonstrate a facile symmetry‐breaking strategy for constructing nonlinear chiral metasurfaces on a lithium niobate‐on‐insulator (LNOI) platform. By simply slanting square‐pillar meta‐atoms along two orthogonal axes, all mirror symmetries are simultaneously broken, yielding a quasi‐three‐dimensional architecture with pronounced intrinsic chirality at both fundamental and second‐harmonic (SH) wavelengths. This design eliminates the need for complex multi‐step nanofabrication and exhibits high tolerance to fabrication imperfections. Experimentally, the fabricated metasurface displays a distinct linear circular dichroism (CD) and a markedly enhanced nonlinear CD, confirming the superior chiral sensitivity of nonlinear processes. Crucially, by harnessing the strong Pockels effect of LN, we achieve active electro‐optic modulation of the nonlinear CD with low driving voltages. This demonstration of electrically tunable nonlinear chirality establishes LN as a versatile platform for dynamic chiral nanophotonics and paves the way toward switchable nonlinear light sources, tunable chiral holography, and reconfigurable nonlinear information processing.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"23 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374200","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":"Vertical GaN Trench MOSFET‐Based Devices for Multifunctional Optoelectronic Logic Gates","authors":"Xinke Liu, Kangkai Fan, Jiajun Han, Yu Xu, Zhixiang Zhong, Zihao Huang, Huile Zhang, Jiachang Guo, Xue Fan, Jun He, Yunji Zhang, Yao Chen, Chunyan Chen, Yiyang Li, Bing Jiang, Kaifeng Wang, Xiaohua Li, Jun He, Haiwen Liu, Hezhou Liu, Hsien‐Chin Chiu","doi":"10.1002/lpor.72209","DOIUrl":"https://doi.org/10.1002/lpor.72209","url":null,"abstract":"The rapid development of optoelectronic technology has highlighted the potential of optoelectronic hybrid logic circuits in low‐power logic circuits. While two‐dimensional (2D) materials are commonly used in traditional optoelectronics, challenges remain in device stability, mass production, and integration efficiency with existing semiconductor technologies. To meet the demand for high‐performance materials in optoelectronic logic gates (OELGs), this study develops GaN‐based OELGs with high responsivity and low power consumption, aiming to overcome limitations of conventional devices and address future optoelectronic integrated system requirements. Through optimization strategies including trench etching, damage repair and vertical structural design, the developed GaN MOSFETs demonstrate exceptional performance: a responsivity ( <jats:italic>R</jats:italic> ) of 2.1 × 10 <jats:sup>4</jats:sup> A/W, a photo‐to‐dark current ratio (PDCR) exceeding 10 <jats:sup>7</jats:sup> , and rapid response speeds ( <jats:italic>τ</jats:italic> <jats:sub>rise</jats:sub> / <jats:italic>τ</jats:italic> <jats:sub>fall</jats:sub> of 2.0 ms/1.1 ms). The optical communication module validates their feasibility in communication transmission, providing crucial experimental evidence for optoelectronic logic gate research. The successfully developed OELGs operate stably under basic logic states, confirming their viability in next‐generation photonic logic computing circuits. This work demonstrates a proof‐of‐concept GaN trench MOSFET platform for optoelectronic logic operations. It exhibits photogain with millisecond‐scale response and a clear gain–speed trade‐off, showing promising potential for photonic logic circuits and ultraviolet optical signal processing.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"44 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149374192","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}