Nanophotonics最新文献_第6页

Polarimetric Metagrating‐Assisted One‐Step Multi‐Dimensional Sensing Using a Vector Vortex Beam 利用矢量涡旋光束偏振偏转辅助一步多维传感

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-24 DOI: 10.1002/nap2.70263

Han Gao,Zhelei Chen,Kaihao Deng,MinJun Xie,Huanxin Liao,Zeyu Zheng,Hao Yang,ChunLian Zhan,Yanlong Meng,Bo Xiong,Wei Ma

{"title":"Polarimetric Metagrating‐Assisted One‐Step Multi‐Dimensional Sensing Using a Vector Vortex Beam","authors":"Han Gao,Zhelei Chen,Kaihao Deng,MinJun Xie,Huanxin Liao,Zeyu Zheng,Hao Yang,ChunLian Zhan,Yanlong Meng,Bo Xiong,Wei Ma","doi":"10.1002/nap2.70263","DOIUrl":"https://doi.org/10.1002/nap2.70263","url":null,"abstract":"ABSTRACT Multidimensional optical sensing requires compact methods capable for jointly retrieving spatial, angular, and polarization‐resolved information from structured optical fields. Here, we present a one‐step multidimensional sensing approach in which vector vortex beams (VVBs) serve as optical probes, whereas a polarimetric metagrating simultaneously analyzes their intensity and polarization responses to radial and angular variations. Theoretical and experimental investigations of the topological charge l and polarization order m reveal their distinct governing roles, establishing a parameter‐space framework that links intrinsic VVB properties to measurable radial and polarization‐dependent angular features. The polarimetric diffraction orders reconstruct the full‐Stokes parameters and reveal a periodic angle‐of‐polarization distribution governed by 2m , whereas the polarization‐insensitive central order preserves the VVB intensity morphology and yields a dark‐core radius with a square‐root dependence on l . Measurements with linearly and elliptically polarized VVBs demonstrate an experimentally distinguishable angular change of approximately 2°. Using the polarization‐insensitive central diffraction order for radius sensing extends the metagrating beyond polarization analysis and broadens its functionality in diverse polarimetric scenarios. The integration of the topological and polarization degrees of freedom of VVBs with chip‐scale full‐Stokes polarimetry establishes a compact and robust platform for vector‐beam diagnostics, structured‐light state recognition, optical mode monitoring, and polarization‐dependent rotation sensing.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"11 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148894265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Optically Transparent Metamaterial Window Based on Metal Meshes With Integrated Absorption and Transmission 基于金属网的吸收透射一体化光透明超材料窗口

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-23 DOI: 10.1002/nap2.70265

Chaoyue Li,Chenyang Cui,Wangqi Mao,Pingping Min,Tingting Yu,Yang Zhang,Yaqiang Zhang,Chi Zhang,Hongxing Dong,Long Zhang

引用次数: 0

Deep‐Learning‐Assisted Design of Dynamically Tunable Near‐Infrared Dual‐Band Lithium Niobate Metamaterial Absorber for Optical Communication 用于光通信的动态可调谐近红外双波段铌酸锂超材料吸收器的深度学习辅助设计

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-23 DOI: 10.1002/nap2.70262

Xiajun Liu,Zexuan Zhang,Chenxi Su,Mei Wang,Feng Xia,Peng Sun,Li Dong,Maojin Yun

{"title":"Deep‐Learning‐Assisted Design of Dynamically Tunable Near‐Infrared Dual‐Band Lithium Niobate Metamaterial Absorber for Optical Communication","authors":"Xiajun Liu,Zexuan Zhang,Chenxi Su,Mei Wang,Feng Xia,Peng Sun,Li Dong,Maojin Yun","doi":"10.1002/nap2.70262","DOIUrl":"https://doi.org/10.1002/nap2.70262","url":null,"abstract":"ABSTRACT To overcome the fixed operating wavelengths and limited tunability of conventional metamaterial absorbers, this study proposes a dynamically tunable near‐infrared dual‐band lithium niobate (LN) metamaterial absorber platform at optical communication wavelengths. Using an “end‐to‐end + gradient optimization” deep learning inverse‐design framework, we efficiently and accurately derive the structural parameters matching target absorption spectra. The designed LN metamaterial absorber (LN‐MMA) exhibits dual‐band near‐perfect absorption peaks at 1310 and 1550 nm, achieving peak efficiencies of 99.9% and 99.5%, respectively. Owing to the strong electro‐optic effect of LN, the resonance wavelengths can be dynamically tuned via an external electric field. Furthermore, by integrating the LN‐MMA with coherent technology, a dynamically tunable coherent perfect absorber (LN‐CPA) is realized, exhibiting absorption peaks at 1550 and 1704 nm with efficiencies of 98.5% and 98.1%. In this configuration, the absorption response can be actively tuned by the phase difference between two incident coherent beams, enabling all‐optical modulation. These results demonstrate a compact absorber with both electrical and optical tunability, showing strong potential for inter‐satellite laser communication, optoelectronic signal conversion, optical detection, and all‐optical signal processing.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"35 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2026-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148894266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Description of Surface Polaritons Within a Classical Coupled Harmonic Oscillator Model 经典耦合谐振子模型中表面极化子的描述

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-21 DOI: 10.1002/nap2.70238

Edoardo Vicentini,Nicolas Pajusco,Carlos Maciel‐Escudero,Xabier Arrieta,Javier Aizpurua,Ruben Esteban,Rainer Hillenbrand

{"title":"Description of Surface Polaritons Within a Classical Coupled Harmonic Oscillator Model","authors":"Edoardo Vicentini,Nicolas Pajusco,Carlos Maciel‐Escudero,Xabier Arrieta,Javier Aizpurua,Ruben Esteban,Rainer Hillenbrand","doi":"10.1002/nap2.70238","DOIUrl":"https://doi.org/10.1002/nap2.70238","url":null,"abstract":"ABSTRACT Coupled harmonic oscillator models are widely used to describe strong and ultrastrong light–matter coupling, providing a simple yet powerful framework for the quantitative analysis of hybrid modes across a broad range of physical systems. Surprisingly, this approach has not been applied to describe surface phonon polaritons and surface plasmon polaritons, which are among the most fundamental examples of strongly coupled light–matter modes. Here, we analyze their dispersion relations using a harmonic oscillator model based on momentum coupling. We show that the surface polaritons—hybrid modes derived from classical electromagnetic theory—are exactly reproduced when the uncoupled oscillators are chosen as the surface phonon (or surface plasmon) mode and the dielectric Brewster mode. This identifies the dielectric Brewster mode as the photonic component of surface polaritons—a role that is typically left unspecified in the literature—and demonstrates the relevance of the coupled harmonic oscillator model for describing surface polariton dispersions.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"10 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2026-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low‐Loss Routing of Strongly Confined Light in Ultra‐Compact Silicon Slot‐Waveguide Bends 超紧凑硅槽波导弯曲中强受限光的低损耗布线

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-20 DOI: 10.1002/nap2.70260

Ji‐Hwan Park,Jae‐Yong Kim,Seokjin Hong,Berkay Neseli,Hyo‐Hoon Park,Hamza Kurt

{"title":"Low‐Loss Routing of Strongly Confined Light in Ultra‐Compact Silicon Slot‐Waveguide Bends","authors":"Ji‐Hwan Park,Jae‐Yong Kim,Seokjin Hong,Berkay Neseli,Hyo‐Hoon Park,Hamza Kurt","doi":"10.1002/nap2.70260","DOIUrl":"https://doi.org/10.1002/nap2.70260","url":null,"abstract":"ABSTRACT Photonic slot waveguides confine light in subwavelength low‐index gaps and are useful for compact light–matter interaction devices, but tight bending strongly distorts the slot‐confined mode and limits dense on‐chip routing. Conventional routing strategies typically avoid strong curvature by using large bend radii or strip–slot conversion, thereby increasing the circuit footprint. Here, we demonstrate an ultra‐compact slot waveguide bend in which independent rail‐width optimization gives rise to asymmetric mode evolution within the bending region, enabling efficient output‐mode recovery under extreme curvature. The optimized geometry develops a rail‐width asymmetry, leading to field redistribution toward the wider outer rail followed by efficient coupling to the output slot mode. Implemented on a 220‐nm‐thick silicon‐on‐insulator platform, the inverse‐designed 90° bend has a bending radius of 1.5 μm and a 100 nm slot gap. Three‐dimensional finite‐difference time‐domain simulations predict quasi‐TE 0 modal transmission exceeding 95% across the C‐band. Experimental measurements further confirm broadband transmission in routing structures containing up to 80 cascaded ultra‐tight 90° bends. From the accumulated routing loss, we extract an effective excess loss of approximately 0.29 dB per 90° turn. These results demonstrate asymmetric mode evolution as a practical design strategy for ultra‐compact slot‐waveguide routing in high‐density photonic integrated circuits.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"2 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Third‐Order Nonlinear Optical Response and Optical Limiting in Silver‐Cobalt Bimetallic Nanoparticles 银-钴双金属纳米粒子的三阶非线性光学响应和光限制

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-20 DOI: 10.1002/nap2.70255

T. K. Nanditha,Shreepooja Bhat,K. B. Manjunatha,Dileep Ramakrishna,K. G. Raghavendra,S. C. Gurumurthy

{"title":"Third‐Order Nonlinear Optical Response and Optical Limiting in Silver‐Cobalt Bimetallic Nanoparticles","authors":"T. K. Nanditha,Shreepooja Bhat,K. B. Manjunatha,Dileep Ramakrishna,K. G. Raghavendra,S. C. Gurumurthy","doi":"10.1002/nap2.70255","DOIUrl":"https://doi.org/10.1002/nap2.70255","url":null,"abstract":"ABSTRACT Developing materials with high third‐order nonlinear susceptibility and low optical limiting thresholds remains a challenge in photonic device engineering. Bimetallic nanoparticles offer a compelling route to enhanced nonlinear optical (NLO) performance by coupling plasmonic field amplification with interfacial electronic structure. Herein, we report the synthesis of AgCo bimetallic nanoparticles with a surface‐confined Co 3 O 4 layer and a systematic investigation of their third‐order NLO response under both continuous‐wave (CW) and nanosecond pulsed excitation. The system exhibits strong reverse saturable absorption, with β eff reaching 7.5 × 10 −3 cm/W at 638 nm under CW excitation, β = 0.054 m/GW, and a third‐order susceptibility χ (3) = 4.12 × 10 −11 esu at 532 nm under nanosecond excitation, which is higher than that of many reported molecular and nanostructured systems. Crucially, the intensity‐dependent nonlinear absorption coefficient confirms a sequential excited‐state absorption mechanism rather than two‐photon absorption, driven by hot‐carrier injection across the Ag‐Co 3 O 4 Schottky junction into mixed‐valence intermediate states. This distinguishes the system from conventional monometallic optical limiters.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"137 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hidden Optical Nonlinearities in Linear Spectra of Quantum Emitter Arrays 量子发射阵列线性光谱中隐藏的光学非线性

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-19 DOI: 10.1002/nap2.70252

Sricharan Raghavan‐Chitra,Arghadip Koner,Joel Yuen‐Zhou

引用次数: 0

Quantum Plasmonic Dynamics Modeled via a Modified Langevin Noise Formalism: Numerical Studies of Single‐Photon Emission and Two‐Photon Interference 基于修正朗之万噪声的量子等离子体动力学模型：单光子发射和双光子干涉的数值研究

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-19 DOI: 10.1002/nap2.70236

Jisang Seo,Hyunwoo Choi,Thomas E. Roth,Jie Zhu,Weng Cho Chew,Dong‐Yeop Na

引用次数: 0

Wafer‐Scale Near‐Infrared Metalenses With High Performance and Low Cost 高性能、低成本的晶圆级近红外超透镜

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-18 DOI: 10.1002/nap2.70258

Wanjiao Zhang,Meng Wang,Yunxiao Cai,Qiu Wang,Yuan Wang,Lu Han

{"title":"Wafer‐Scale Near‐Infrared Metalenses With High Performance and Low Cost","authors":"Wanjiao Zhang,Meng Wang,Yunxiao Cai,Qiu Wang,Yuan Wang,Lu Han","doi":"10.1002/nap2.70258","DOIUrl":"https://doi.org/10.1002/nap2.70258","url":null,"abstract":"ABSTRACT Refractive optics, now over two centuries old and highly mature, remains the cornerstone of optical systems in rapidly growing fields such as robotics and smart sensing, yet has reached its fundamental physical limits. Ultra‐thin metalenses hold transformative potential for next‐generation optics, yet their widespread adoption is severely impeded by the high cost of wafer‐level fabrication. In this paper, 8‐inch wafer‐scale near‐infrared all‐dielectric metalenses are demonstrated by a scalable high‐precision manufacturing scheme that dramatically reduces cost while ensuring exceptional uniformity and performance. Our step‐and‐repeat (S&R) imprinting strategy eliminates the need for costly deep‐UV lithography or large‐area direct‐write tools, reducing master mold costs by over an order of magnitude. Optical characterization confirms diffraction‐limited focusing performance and remarkable consistency across the entire wafer, validating both process robustness and design fidelity. Owing to its compatibility with diverse material systems and standard semiconductor processes, this methodology paves a practical high‐yield pathway toward the commercial deployment of high‐performance metasurfaces for demanding applications, including LiDAR, AR/VR, and aerospace‐grade optics.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"7 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emergence of Multiple Polaritonic States of Water‐in‐Salt in Cavity 空腔中盐-水多元极化态的出现

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2026-08-17 DOI: 10.1002/nap2.70256

Tomohiro Fukushima,Keiji Moriya,Soushi Yoshimitsu,Masaki Itatani,Kei Murakoshi

引用次数: 0