Laser & Photonics Reviews最新文献

{"title":"Vortex Coherence Filtering for Enhanced Single-Photon LiDAR Imaging Through Dense Fog","authors":"Yuanjian Huang, Hanxiang Yan, Yinghui Guo, Xiaoyin Li, Wenyi Ye, Junwen Zhang, Mingbo Pu, Qi Zhang, Hengshuo Guo, Kunpeng Wang, Mingfeng Xu, Fei Zhang, Nan Chi, Xiangang Luo","doi":"10.1002/lpor.202502976","DOIUrl":"https://doi.org/10.1002/lpor.202502976","url":null,"abstract":"Light detection and ranging (LiDAR) is an important active imaging modality for adverse-weather perception, yet in dense fog its detection range and measurement accuracy are severely degraded by the combined effects of backscattering and absorption. Existing fog-penetrating LiDAR approaches, such as single-photon detection, time gating, and deep learning, remain limited by strong noise sensitivity, incomplete full-time-domain noise suppression, and the inability to improve the raw signal-to-noise ratio. Here, vortex coherence filtering (VCF) is introduced into a coaxial scanned single-photon LiDAR architecture for 3D imaging in dense fog. The method enables fog-penetrating imaging under dense-fog conditions with visibility as low as 0.61 m and improves the signal-to-background ratio by 37.56 times. 3D reconstruction of targets with different surface types is also demonstrated, and the method is shown to be compatible with existing noise-suppression strategies, enabling further improvement of the signal-to-noise ratio. These results show that VCF can serve as an effective optical front-end noise-suppression strategy for improving dense-fog single-photon imaging performance, and provide a feasible route toward active imaging and environmental perception under adverse weather conditions.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"28 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147755085","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":"Photon‐Starved Full‐Stokes Polarimetric LiDAR Imaging Using a Fractal SNSPD and a Learning‐Based Denoiser","authors":"Song Li, Haoran Sun, Hedong Liu, Pengcheng Shao, Yuanzhe Lan, Haofeng Hu, Xiaolong Hu","doi":"10.1002/lpor.202502193","DOIUrl":"https://doi.org/10.1002/lpor.202502193","url":null,"abstract":"We implement a learning‐based denoiser to the full‐Stokes polarimetric imaging LiDAR based on a fractal superconducting nanowire single‐photon detector. The denoiser is a four‐branch denoising network that combines local and global feature fusion with polarimetric loss functions for optimal noise removal and physical accuracy. After training the denoiser with real‐life data, the denoiser processes the polarimetric images acquired with short pixel‐dwell time and outputs the images with high qualities previously achievable by increasing the pixel‐dwell time. Therefore, the denoiser mitigates the tradeoff between image quality and acquisition time, permitting full‐Stokes polarimetric LiDAR imaging in the extremely photon‐starved condition.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"73-74 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751495","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":"In Situ Acoustic Monitoring of Focused Femtosecond Pulse Duration in Air","authors":"Indrė Meškėlaitė, Hsin-Hui Huang, Haoran Mu, Nguyen Hoai An Le, Tomas Katkus, Edvinas Aleksandravičius, Gabrielius Kontenis, Domas Paipulas, Saulius Juodkazis, Darius Gailevičius","doi":"10.1002/lpor.202600002","DOIUrl":"https://doi.org/10.1002/lpor.202600002","url":null,"abstract":"The monitoring of the acoustic amplitude of an air breakdown at the focus of the femtosecond laser pulse was used to determine the pulse duration using a computer microphone. Pulse duration was tuned using the chirp settings of a femtosecond laser and measured by an autocorrelator before the focusing optics, where the <span data-altimg=\"/cms/asset/c5dc5224-339d-4b2e-ae49-37da8ed11a4d/lpor71195-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"266\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor71195-math-0001.png\"><mjx-semantics><mjx-mrow data-semantic-children=\"2,1\" data-semantic-content=\"0\" data-semantic- data-semantic-role=\"equality\" data-semantic-speech=\"tilde 241\" data-semantic-type=\"relseq\"><mjx-mrow data-semantic- data-semantic-parent=\"3\" data-semantic-role=\"unknown\" data-semantic-type=\"empty\"></mjx-mrow><mjx-mo data-semantic- data-semantic-operator=\"relseq,∼\" data-semantic-parent=\"3\" data-semantic-role=\"equality\" data-semantic-type=\"relation\" rspace=\"5\" space=\"5\"><mjx-c></mjx-c></mjx-mo><mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"3\" data-semantic-role=\"integer\" data-semantic-type=\"number\"><mjx-c></mjx-c><mjx-c></mjx-c><mjx-c></mjx-c></mjx-mn></mjx-mrow></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=\"urn:x-wiley:18638880:media:lpor71195:lpor71195-math-0001\" display=\"inline\" location=\"graphic/lpor71195-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><semantics><mrow data-semantic-=\"\" data-semantic-children=\"2,1\" data-semantic-content=\"0\" data-semantic-role=\"equality\" data-semantic-speech=\"tilde 241\" data-semantic-type=\"relseq\"><mrow data-semantic-=\"\" data-semantic-parent=\"3\" data-semantic-role=\"unknown\" data-semantic-type=\"empty\"></mrow><mo data-semantic-=\"\" data-semantic-operator=\"relseq,∼\" data-semantic-parent=\"3\" data-semantic-role=\"equality\" data-semantic-type=\"relation\">∼</mo><mn data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic-parent=\"3\" data-semantic-role=\"integer\" data-semantic-type=\"number\">241</mn></mrow>${sim}241$</annotation></semantics></math></mjx-assistive-mml></mjx-container> fs pulses were compressed down to <span data-altimg=\"/cms/asset/16592ef7-b6fc-4ae5-8722-39e6547040e2/lpor71195-math-0002.png\"></span><mjx-container ctxtmenu_counter=\"267\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor71195-math-0002.png\"><mjx-semantics><mjx-mrow data-semantic-children=\"2,1\" data-semantic-content=\"0\" data-semantic- data-semantic-role=\"equality\" data-semantic-speech=\"tilde 50\" data-semantic-type=\"relseq\"><mjx-mrow data-semantic- data-semantic-parent=\"3\" data-semantic-role=\"unknown\" data-sem","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"40 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751493","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 Hot Carrier Accumulation in Plasmon Photocatalysis","authors":"Pei Zhang, Ya-Nan Ding, Qiu-Quan Pan, Qiang Xiao, Kun Li","doi":"10.1002/lpor.71219","DOIUrl":"https://doi.org/10.1002/lpor.71219","url":null,"abstract":"Plasmonic photocatalysts play a central role in heterogeneous photocatalysis. However, the highly energetic hot carriers (electrons and holes) generated via plasmon non-radiative decay suffer from ultrashort lifetimes on the femtosecond and picosecond scale. This rapid relaxation severely limits their ability to participate in most conventional reactions. Therefore, prolonging the lifespan of hot carriers by separating and localizing them at specific active sites is necessary. This review focuses on recent strategies designed to trap and accumulate hot carriers to enhance their efficient extraction and utilization. We systemically discuss fundamental approaches, including constructing metal-semiconductor Schottky heterojunctions, engineering heterometallic structures, functionalizing metal nanoparticles with surface molecules, and applying external stimuli. Furthermore, we highlight how the localized accumulation of hot carriers enables multi-carrier collaboration catalysis and highly selective product generation. Finally, the current challenges and future prospects of hot carrier accumulation in plasmonic photocatalysis are discussed as well.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751494","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":"Optical Solitons Dominated by Pure-High-Even-Order Dispersion: Research Progress of Pure-Quartic Solitons","authors":"Yishu Zhang, Wenjie Feng, Qiang Wang, Xinyue Ren, Xinyi Zhang, Defeng Zou, Xiaohui Li","doi":"10.1002/lpor.71177","DOIUrl":"https://doi.org/10.1002/lpor.71177","url":null,"abstract":"Pure-quartic solitons (PQSs) are a special type of optical solitons that exist stably depending on the balance between negative fourth-order dispersion and self-phase modulation (SPM). Their evolution mechanism is different from the balance between group-velocity dispersion and nonlinear effects on which traditional solitons rely. Recent experimental and theoretical studies have demonstrated that the balance between pure-quartic dispersion and SPM enables the formation of stable pure- higher-order dispersion solitons. Here, we systematically summarize the experimental implementations and numerical simulation studies of PQSs in diverse cavity configurations, which used different approaches for constructing a pure-quartic dispersion regime. PQSs' special energy-width scaling characteristics and temporal oscillating tail structure may bring new applications to the field of ultrafast lasers. This will not only advance the development of ultrafast lasers, but also lay a solid foundation for breakthroughs in other fields, including on-chip frequency combs, supercontinuum generation, and advanced modulation formats for communications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"32 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751492","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":"Defect-Assisted Ultra-Regular LIPSS for Multi-Level Structural Coloring","authors":"Alexey Yu. Zhizhchenko, Vasily Lapidas, Qianhe Wang, Wenqi Ma, Aleksei G. Kozlov, Evgeny Modin, Junjie Zhang, Aleksandr A. Kuchmizhak","doi":"10.1002/lpor.202503231","DOIUrl":"https://doi.org/10.1002/lpor.202503231","url":null,"abstract":"Laser-induced periodic surface structures (LIPSS) offer high-throughput route for creating regular nanotextures over diverse materials. However, achieving large-scale ultra-regular LIPSS with tailored periodicity on common materials with non-ideal interfaces, as polished metallic surfaces, remains challenging. Here, we demonstrate defect-engineering approach to produce self-organized gratings over polished AISI304 steel surface with exceptional dispersion of LIPSS orientation angles < 1° and diffraction efficiency above 15% – among the highest values ever reported for all LIPSS types. This is achieved by IR femtosecond-laser pre-patterning the surface with isolated nano-grooves, which control excitation and scattering of surface waves to guide LIPSS formation along predefined trajectory. We employ an original Fourier-plane micro-imaging technique enabling highly sensitive and localized assessment of exceptional LIPSS regularity through light diffraction, with the data rapidly averaged over square-centimeter areas. Using defect-assisted patterning we demonstrate both near- (<span data-altimg=\"/cms/asset/e606d47e-5ef8-4bd6-b98c-00c7c1a793b5/lpor71222-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"3\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor71222-math-0001.png\"><mjx-semantics><mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-role=\"greekletter\" data-semantic-speech=\"lamda\" data-semantic-type=\"identifier\"><mjx-c></mjx-c></mjx-mi></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=\"urn:x-wiley:18638880:media:lpor71222:lpor71222-math-0001\" display=\"inline\" location=\"graphic/lpor71222-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><semantics><mi data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic-role=\"greekletter\" data-semantic-speech=\"lamda\" data-semantic-type=\"identifier\">λ</mi>$lambda$</annotation></semantics></math></mjx-assistive-mml></mjx-container>) and sub-wavelength (<span data-altimg=\"/cms/asset/c5660714-ab6f-4ee3-ab7c-5f14a7921f2c/lpor71222-math-0002.png\"></span><mjx-container ctxtmenu_counter=\"4\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor71222-math-0002.png\"><mjx-semantics><mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-role=\"greekletter\" data-semantic-speech=\"lamda\" data-semantic-type=\"identifier\"><mjx-c></mjx-c></mjx-mi></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=\"urn:x-wiley:18638880:media:lpor71222:lpor71222-math-0002\" display=\"inline\" location=\"graphic/lpor71222-math-0002.png\" xmlns=","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"379 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751497","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-Fidelity Miniature Fluorescence Microscopy Using Zernike-Based Point-Spread-Function Modeling and Hardware-Assisted Calibration","authors":"Liangtao Gu, Yan Liu, Xinyi Zhu, Rui Li, Ning Zhou, Jonathan Dong, Wuwei Ren","doi":"10.1002/lpor.202502485","DOIUrl":"https://doi.org/10.1002/lpor.202502485","url":null,"abstract":"Miniature fluorescence microscopy (Miniscope) enables critical observation of neural dynamics in freely behaving animals. However, its simplified optical design inherently limits spatial resolution and introduces significant background fluorescence, constraining image fidelity. To address these challenges, we present MiniZSV, a universal and practical image enhancement pipeline comprising background removal, Zernike-polynomial-based point-spread-function (PSF) modeling, and spatially-varying deconvolution. Our pipeline leverages Zernike polynomial to represent an accurate spatially-varying PSF map based on experimental data acquired by an open-source Miniscope toolkit, ensuring high signal-to-noise ratio (SNR) reconstructions beyond conventional approaches. Applied to in vivo calcium imaging and angiography, MiniZSV uncovers low-SNR neurons and overlapping vascular structures, significantly improving neuron extraction and hemodynamic analysis beyond the limits of raw Miniscope data. By providing higher-fidelity imaging data, MiniZSV facilitates more accurate and versatile downstream analyses in neurobiology and advances the potential of Miniscope technology.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"151 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751491","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":"Giant Phonon‐Enhanced Terahertz Electro‐Optic Response in Ferroelectric van der Waals NbOX 2 (X = Br, I)","authors":"Baolong Zhang, Ruihuan Duan, Zheng Liu, Ranjan Singh","doi":"10.1002/lpor.71197","DOIUrl":"https://doi.org/10.1002/lpor.71197","url":null,"abstract":"NbOX <jats:sub>2</jats:sub> van der Waals ferroelectric materials exhibit large second‐order nonlinear responses and strong light‐matter interactions, making them promising candidates for ultrafast optoelectronic and quantum photonic applications. However, their terahertz (THz) electro‐optic (EO) properties remain experimentally unexplored. Here, we report the first experimental study of NbOX <jats:sub>2</jats:sub> thin films subjected to intense THz electric fields, combining both the frequency‐dependent electro‐optic (EO) effect and the THz‐field‐induced modulation of second‐harmonic generation (SHG). We observed a pronounced phonon resonance enhanced EO response with effective EO coefficients reaching 332 pm/V at 3.1 THz in NbOI <jats:sub>2</jats:sub> and 192 pm/V at 3.7 THz in NbOBr <jats:sub>2</jats:sub> . Under a 150 kV/cm THz pump field, we further observe a non‐resonant SHG modulation of 4% and a resonant phonon‐enhanced modulation. These results establish NbOX <jats:sub>2</jats:sub> as a class of high‐performance, phase‐matching‐free THz electro‐optic platform for ultrabroadband time‐domain spectroscopy, high‐speed optical switching, and phonon‐enhanced nonlinear optical response in 2D ferroelectrics.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"13 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733471","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":"Supramolecular‐Assembled Chiral Cu(I) Halide Scintillators With Near‐Unity Cyan Photoluminescence for High‐Resolution X‐Ray Imaging","authors":"Yelin Wang, Yunlong Bai, Hongzhao Zan, Tong Chang, Bingsuo Zou, Ruosheng Zeng","doi":"10.1002/lpor.71217","DOIUrl":"https://doi.org/10.1002/lpor.71217","url":null,"abstract":"Chiral organic‐inorganic hybrid copper(I)‐based halides have attracted intense attention in optoelectronics due to their non‐toxicity and high photoluminescence quantum yields (PLQYs). Nevertheless, the simultaneously realizing outstanding scintillation performance and circularly polarized luminescence (CPL) remains challenging. Herein, we employed a supramolecular self‐assembly strategy, in which crown ether was anchored to the A‐site cation, and successfully synthesized zero‐dimensional chiral <jats:italic>R</jats:italic> / <jats:italic>S</jats:italic> ‐DAP(18‐crown‐6) <jats:sub>2</jats:sub> Cu <jats:sub>2</jats:sub> I <jats:sub>4</jats:sub> ( <jats:italic>R</jats:italic> / <jats:italic>S</jats:italic> ‐DAP = <jats:italic>R</jats:italic> / <jats:italic>S</jats:italic> ‐diaminopropane) halide scintillators. The coordination of crown ether ligands with amine groups formed large cations, facilitating the formation of [Cu <jats:sub>2</jats:sub> I <jats:sub>4</jats:sub> ] <jats:sup>2−</jats:sup> units with effective CPL and near‐unity PLQYs. Furthermore, exceptional x‐ray absorption and responsivity were achieved, resulting in a light yield of 187835 photons MeV <jats:sup>−1</jats:sup> , which is a new record among chiral copper(I)‐based halides. The scintillators also exhibited excellent self‐powered x‐ray detection performance, and the flexible scintillation films enabled spatial resolution of up to 18 lp mm <jats:sup>−1</jats:sup> in x‐ray imaging. This work provides a new strategy for the design of chiral copper(I)‐based metal halide materials with high‐performance x‐ray detection and imaging capabilities.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"325 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733470","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":"Tuning Localized Excitonic States in TEA + ‐Intercalated MoS 2 for Near‐Field Enhancement","authors":"Junxiang Li, Haochuan Feng, Keke Jiao, Quan Shui, Xiuqi Shi, Shirui Weng, Changjin Zhang, Liangbao Yang","doi":"10.1002/lpor.202503266","DOIUrl":"https://doi.org/10.1002/lpor.202503266","url":null,"abstract":"Atomically thin transition metal dichalcogenides exhibit strong excitonic effects and rich light–matter interactions, yet active control over their optical near‐field response remains challenging. Here, we demonstrate an intercalation‐enabled strategy to tune the near‐field response of MoS <jats:sub>2</jats:sub> through electrochemical insertion of tetraethylammonium ions. The resulting (TEA) <jats:sub>x</jats:sub> MoS <jats:sub>2</jats:sub> exhibits a markedly expanded interlayer spacing (12.17 Å) and substantial reconstruction of its electronic, dielectric, and excitonic properties. Steady‐state and ultrafast spectroscopy reveal redshifted and intensified excitonic resonances, a more pronounced monolayer‐like emission response, and prolonged excitonic bleach dynamics after intercalation. Consistently, nano‐optical imaging shows a substantially enhanced near‐field response. Combined optical analyses support an intercalation‐modified exciton‐coupled near‐field mode rather than a conventional plasmonic origin. Consequently, (TEA) <jats:sub>x</jats:sub> MoS <jats:sub>2</jats:sub> enables molecular detection down to 10 <jats:sup>−9</jats:sup> <jats:sc>m</jats:sc> , establishing electrochemical intercalation as a practical route for excitonic near‐field engineering in van der Waals semiconductors.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"28 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733472","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}