Rong Rong, Yan Li, Zixian Hu, Kingfai Li, Guixin Li, Shumei Chen, Xianzhong Chen
{"title":"Customizing 3D Polarization Structures at Second Harmonic Frequency","authors":"Rong Rong, Yan Li, Zixian Hu, Kingfai Li, Guixin Li, Shumei Chen, Xianzhong Chen","doi":"10.1002/lpor.202501059","DOIUrl":"https://doi.org/10.1002/lpor.202501059","url":null,"abstract":"3D polarization structures have received growing interest due to their unique optical properties and extra information‐carrying capacity. Although the second harmonic generation (SHG) from nonlinear optical metasurfaces has enabled advanced polarization control, the realization of 3D polarization structures has not been reported. This study proposes and experimentally demonstrates a nonlinear metasurface approach to simultaneously generate SHG beams and create 3D polarization structures. Upon the illumination of a linearly polarized fundamental wave (FW), the efficacy of this method is exemplified through the simulation and experimental demonstration of various SHG polarization structures ranging from rings to 3D polarization knots. The SHG polarization distributions on these structures can be further modulated by continuously changing the linear polarization state of the FW. The 3D polarization control with nonlinear metasurfaces offers a new approach to generate SHG beams with customized 3D polarization distributions, which are promising for high‐dimensional optical information processing and encryption.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"6 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144778564","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‐Capacity Data Transmission for Optical I/O Driven by Efficient Microcomb and Microring Modulator","authors":"Hongyi Zhang, Shihuan Ran, Liangjun Lu, Yuanbin Liu, Shuxiao Wang, Yan Cai, Yuyao Guo, Yu Li, Jianping Chen, Linjie Zhou","doi":"10.1002/lpor.202500944","DOIUrl":"https://doi.org/10.1002/lpor.202500944","url":null,"abstract":"The escalating demand for high‐speed, low‐power data transmission between processing units (XPUs) has underscored the limitations of traditional electrical input/output (I/O) technologies. Silicon photonics emerges as a promising solution for chip‐level optical I/O by integrating Kerr microcombs, microring‐based modulators, and photodetectors. In this study, a record‐breaking error‐free optical I/O transmission is demonstrated, achieving 2.3 Tbit s<jats:sup>−1</jats:sup> per fiber port. This feat is enabled by dark soliton microcombs generated in a 400‐nm‐thick Si<jats:sub>3</jats:sub>N<jats:sub>4</jats:sub> microring, exhibiting a high conversion efficiency (CE) of 49% and an on‐chip spectral bandwidth of 28 nm at −5 dBm, achieved through precise coupling and dispersion engineering. Utilizing a silicon microring modulator with an electro‐optic bandwidth of 61.7 GHz, 36 comb lines are encoded with PCIe6.0‐compatible 64 Gbit s<jats:sup>−1</jats:sup> on‐off keying (OOK) signals. Additionally, these comb lines support 100 Gbit s<jats:sup>−1</jats:sup> OOK per channel with a bit error rate (BER) of 10<jats:sup>−10</jats:sup>. The successful integration of these foundry‐compatible platforms confirms the viability of microcomb‐based optical I/O, paving the way for the next generation of high‐speed, energy‐efficient data communication systems.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"152 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144770001","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}
Changle Luo, Lingrui Wang, Qingqing Mo, Yijia Huang, Han Gao, Qinghang Liu, Kexin Song, Shiwen Chu, Yanbing Han, Zhifeng Shi
{"title":"Undoped Ca2Sb2O7 with High Stability and Sensitivity for Multi‐Modal Rapid‐Response Optical Manometer","authors":"Changle Luo, Lingrui Wang, Qingqing Mo, Yijia Huang, Han Gao, Qinghang Liu, Kexin Song, Shiwen Chu, Yanbing Han, Zhifeng Shi","doi":"10.1002/lpor.202501271","DOIUrl":"https://doi.org/10.1002/lpor.202501271","url":null,"abstract":"Optical manometers demonstrating broad application prospects in high‐pressure physics, materials science, planetary geology, and energy technology. However, current optical manometers based on diverse materials universally require complex doping of the host matrix, which complicates fluorescence mechanisms, significantly limiting their practical applicability. In this work, a pure‐phase undoped oxide material, Ca<jats:sub>2</jats:sub>Sb<jats:sub>2</jats:sub>O<jats:sub>7</jats:sub>, is successfully synthesized and its optical pressure sensing properties are studiede. Ca<jats:sub>2</jats:sub>Sb<jats:sub>2</jats:sub>O<jats:sub>7</jats:sub> shows a single emission peak centered at 440 nm when excited by 335 nm light, which can be monitored and analyzed under high pressure. A high sensitivity (dλ/dP = 0.75 nm GP<jats:sup>−1</jats:sup>) is reported from undoped Ca<jats:sub>2</jats:sub>Sb<jats:sub>2</jats:sub>O<jats:sub>7</jats:sub>. In addition to the emission wavelength, Raman and absorption spectra of Ca<jats:sub>2</jats:sub>Sb<jats:sub>2</jats:sub>O<jats:sub>7</jats:sub> can also be exploited for pressure sensing. The area integral of the PL peak also has a strong linear relationship with pressure. It also shows exceptional pressure reversibility, and robust environmental stability. This work provides an alternative way for optical manometer: material without any doping can play an unique role in this field.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"6 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144770049","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 Green Synthesis of Ultrastable Perovskite Nanocrystals in Metal‐Organic Frameworks for High‐Performance X‐Ray Imaging","authors":"Wenqian Cao, Peng Ran, Hailong Wu, Yuanjing Cui, Yang (Michael) Yang, Guodong Qian","doi":"10.1002/lpor.202501439","DOIUrl":"https://doi.org/10.1002/lpor.202501439","url":null,"abstract":"Perovskite nanocrystals (NCs) have emerged as promising candidates for next‐generation X‐ray scintillators. Nevertheless, their practical implementation remains hindered by inherent material instability and challenges in scaling up. Herein, a strategy is proposed that guides heterostructural engineering by utilizing the metal‐organic frameworks (PbBTC) and a facile mechanochemical synthesis to tailor ultrastable perovskite composites on a large‐scale at room temperature. In the constructed CsPbBr<jats:sub>3</jats:sub>@Cs<jats:sub>4</jats:sub>PbBr<jats:sub>6</jats:sub>/PbBTC heterostructure, PbBTC acts as a structural template directing the in situ crystallization of CsPbBr<jats:sub>3</jats:sub>@Cs<jats:sub>4</jats:sub>PbBr<jats:sub>6</jats:sub> and serves as a protective matrix ensuring environmental resilience. This heterostructure enables synergistic effects between surface passivation from the Cs<jats:sub>4</jats:sub>PbBr<jats:sub>6</jats:sub>/PbBTC interface and quantum confinement induced by PbBTC, enhancing photoluminescence quantum yield and environmental stability. The developed scintillator demonstrates not only a low X‐ray detection limit (132 nGy<jats:sub>air</jats:sub> s<jats:sup>−1</jats:sup>) and high spatial resolution (18 lp mm<jats:sup>−1</jats:sup>), but more significantly, maintains exceptional operational stability under harsh environmental stressors—including sustained thermal aging at 85 °C, humidity exposure at 85% RH, and cumulative X‐ray irradiation up to 7,000 mGy<jats:sub>air</jats:sub>—conditions under which conventional CsPbBr<jats:sub>3</jats:sub> counterparts exhibit severe performance degradation. Such a strategy enables robust and scalable scintillators with superior performance, advancing their practical deployment in complex applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"30 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763334","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":"Polychromatic Adaptive Optics‐Assisted Stimulated Raman Scattering Microscopy Enables Deep Tissue Chemical Imaging","authors":"Weiqi Wang, Zhiwei Huang","doi":"10.1002/lpor.202501022","DOIUrl":"https://doi.org/10.1002/lpor.202501022","url":null,"abstract":"Stimulated Raman scattering (SRS) microscopy has revolutionized label‐free chemical imaging by leveraging molecular vibrations to reveal biochemical compositions of cells and tissues. However, the wavelength‐dependent scattering in tissues distorts laser beam wavefronts, significantly degrading image quality and depth in SRS imaging. Here, the study introduces a unique polychromatic adaptive optics‐assisted SRS (PAO‐SRS) microscopy, enabling high‐sensitivity, high‐resolution, deep tissue 3D imaging in turbid samples. By employing a spatial light modulator (SLM) to independently correct aberrations in incident SRS beams, PAO‐SRS effectively addresses tissue‐induced, wavelength‐dependent scattering, thereby maintaining a high signal‐to‐noise ratio in deep tissue regions. PAO‐SRS provides remarkable ∼3‐fold enhancement in SRS intensity in deep brain tissue, leading to a 3‐fold increase in SRS imaging depth. Further, PAO‐SRS enables mechanical z‐scanning‐free, aberration‐free 3D chemical imaging by electronically controlling the axial positions of laser foci associated with the corresponding aberration corrections at each tissue depth. An enhanced imaging resolution and intensity in zebrafish liver region is demonstrated using PAO‐SRS, and also visualizes global metabolic variations in live zebrafish liver, unraveling distinct chemical differences between normal and tumor liver under starvations. PAO‐SRS holds great potential for advancing label‐free, high‐resolution, 3D chemical imaging in deep tissue, opening new avenues in biomedical research and diagnostics.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"11 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763335","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":"Zero‐Dimensional Metal Halides Inorganic Frameworks Modulation for Sensitivity and Stable Direct X‐Ray Detection","authors":"Yujiang Wu, Youkui Xu, Yutian Lei, Guoqiang Peng, Yuhang Zhou, Qijun Li, ZhenHua Li, Qian Wang, Zhiwen Jin","doi":"10.1002/lpor.202501336","DOIUrl":"https://doi.org/10.1002/lpor.202501336","url":null,"abstract":"Zero‐Dimensional (0D) metal halides (MHs) exhibit unique optoelectronic properties in next‐generation X‐ray imaging technology, stemming from their isolated polyhedral structures. However, the limited understanding of the insulating behaviors of organic cationic spacers, the kinetic mechanisms regulating charge transport within isolated inorganic frameworks, and the synergistic effects between these components have resulted in suboptimal carrier transport and collection efficiencies. Herein, the correlation between the coordination and performance of inorganic frameworks is investigated, and it is concluded that the inorganic framework exhibits unique charge transport characteristics with organic cations. 0D single crystals, namely MPAZE‐ZnBr<jats:sub>4</jats:sub>·H<jats:sub>2</jats:sub>O (15 × 5 × 3 mm<jats:sup>3</jats:sup>) and MPAZE‐MnBr<jats:sub>3</jats:sub>(H<jats:sub>2</jats:sub>O)<jats:sub>3</jats:sub>·Br (15 × 10 × 8 mm<jats:sup>3</jats:sup>), are successfully synthesized. The inorganic framework significantly governs the steric hindrance within the material and dictates the involvement of organic cations in the conduction process. Density functional theory (DFT) is employed to analyze the coordination geometries of organic cations with inorganic frameworks, as well as the impacts of binding energies and band structure contributions on charge transport dynamics and device performance. The resulting X‐ray detector demonstrates a high sensitivity of 9185 µC Gy<jats:sub>air</jats:sub><jats:sup>−1</jats:sup> cm<jats:sup>−2</jats:sup> and a low detection limit of 0.573 µGy<jats:sub>air</jats:sub> s<jats:sup>−1</jats:sup>, alongside excellent environmental stability.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763336","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":"Tailoring Ultra‐High‐Order Optical Skyrmions","authors":"Xinji Zeng, Jing Fang, Haijun Wu, Jinwen Wang, Yun Chen, Yongkun Zhou, Xin Yang, Chengyuan Wang, Dong Wei, Haixia Chen, Hong Gao, Yijie Shen","doi":"10.1002/lpor.202500732","DOIUrl":"https://doi.org/10.1002/lpor.202500732","url":null,"abstract":"As quasiparticles with topological spin textures, skyrmions have drawn considerable interest from the condensed matter and structured wave communities, offering potential for next‐generation high‐density, robust information technologies. Nevertheless, generating high‐order skyrmions remains a significant challenge, as they have not been reliably observed in any physical system. Here, the method is proposed to create and control ultra‐high‐order skyrmions (skyrmion number up to 400<jats:sup>th</jats:sup>) in a structured light system. The topological state transition between bimerons and skyrmions is also experimentally controlled, the transverse size of an arbitrary‐order skyrmionic beam is tailored independently of the topological number, and ensure the topological stability upon propagation. This work provides solutions for topologically resilient communication and memory, significantly enhancing information capacity.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"17 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763338","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":"Multi‐State Chiral Switching Through Adiabaticity Control in Encircling Exceptional Points","authors":"Aodong Li, Jian Wang, Andrea Alù, Lin Chen","doi":"10.1002/lpor.202500135","DOIUrl":"https://doi.org/10.1002/lpor.202500135","url":null,"abstract":"Dynamic encircling of exceptional points has attracted significant interest in recent years, as it can facilitate chiral transmission selectivity due to a nontrivial eigenstate evolution. Recently, multi‐state systems have garnered considerable attention due to their complex topologies, which support a larger number of exceptional points. However, the realization of chiral switching among arbitrary multiple eigenstates has remained restricted and incomplete. Here, this challenge is overcome by dividing the eigenstate space into multiple subspaces by controlling the adiabaticity. The eigenstates in different subspaces can evolve into each other, and chiral switching occurs as the eigenstates within each subspace are subject to a non‐adiabatic transition while they encircle exceptional points. This phenomenon is experimentally demonstrated by reporting chiral switching for two groups of optical modes at telecom wavelengths in a four‐state optical system, and theoretically demonstrates that this approach can be extended to arbitrary grouping of states in higher‐order systems. These findings pave new avenues for studying chiral dynamics based on exceptional‐point physics in multi‐state systems, and offer opportunities to develop multiplexed photonic devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"56 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763337","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":"Extremely Low‐Turn‐On‐Voltage Enabled Uniformity for Large‐Area Smart Window to Manipulate Solar Radiation","authors":"Xin Tang, Xin Hu, Long Yuan, Yu Duan","doi":"10.1002/lpor.202501157","DOIUrl":"https://doi.org/10.1002/lpor.202501157","url":null,"abstract":"Electro‐reflective devices (ERDs) show high energy efficiency as smart windows for the next generation of buildings and electric vehicles. However, the un‐uniformly distributed electric field between the electrode layers in ERDs results in poor deposition uniformity, sluggish response rate, and short cyclability. Herein, TBAP molecules are used to form a network of weakly polymerized gel molecules and weaken the effect of the voltage drop on the electrodeposited silver uniformity, and the device is optimized in terms of the turn‐on voltage (from −1.67 down to −1.47 V), the response rate (improved by 22%) and coloring uniformity (improved from 48.8% to 25.6%), and maintaining optical contrast (82% in 700 nm) and IR reflectance (80%). The 625 cm<jats:sup>2</jats:sup> ERDs are produced and achieved a rapid response within 135 s. In addition, outdoor tests show that the ERDs have excellent photo‐thermal modulation. Therefore, this work provides a fundamental design idea for the development of rapid‐response large‐area electro‐reflective smart windows.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"60 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747144","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}
Yarong Gu, Ziqing Li, Ming Deng, Xinyu Zhang, Ying Hu, Li Su, Xiaosheng Fang
{"title":"Overcoming Chiral‐Optoelectronic Trade‐Off in Two‐Dimensional Halide Perovskites for Circularly Polarized Photodetectors","authors":"Yarong Gu, Ziqing Li, Ming Deng, Xinyu Zhang, Ying Hu, Li Su, Xiaosheng Fang","doi":"10.1002/lpor.202501468","DOIUrl":"https://doi.org/10.1002/lpor.202501468","url":null,"abstract":"Two‐dimensional (2D) perovskites hold great promise for optoelectronic devices due to the flexible tunability of chiral optical activity and optoelectronic properties. However, the trade‐off between strong chiral effect and efficient charge transport restricts their development in high‐performance circularly polarized light (CPL) detection. In this work, a tailored achiral‐chiral cation mixing strategy is proposed to improve the intermolecular forces and out‐of‐plane octahedral tilt in the chiral perovskite, which effectively promotes chirality transfer and van der Waals forces tuned vertical growth. Further, a chiral 2D perovskite‐based CPL photodetector is constructed with balanced high absorption anisotropy (<jats:italic>g</jats:italic><jats:sub>abs</jats:sub>) and photocurrent anisotropy (<jats:italic>g</jats:italic><jats:sub>Iph</jats:sub>). Compared with materials obtained with pure chiral cations, the maximum <jats:italic>g</jats:italic><jats:sub>abs</jats:sub> of this chiral 2D perovskite increased by 7.33 times. The enhanced chiroptical activity and in‐plane transport in vertically oriented chiral 2D perovskites endowed the self‐powered CPL device with outstanding performance and a record <jats:italic>g</jats:italic><jats:sub>Iph</jats:sub> of 0.72. This work opens a reasonable paradigm of chiral 2D perovskite photodetectors in information encryption.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"99 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747064","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}