Nanophotonics最新文献_第6页

On chip control and detection of complex SPP and waveguide modes based on plasmonic interconnect circuits 基于等离子体互连电路的复杂 SPP 和波导模式的片上控制与检测

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-09-09 DOI: 10.1515/nanoph-2024-0298

Canran Zhang, Yijing Xu, Hui Tao, Pan Wang, Yunkang Cui, Qilong Wang

{"title":"On chip control and detection of complex SPP and waveguide modes based on plasmonic interconnect circuits","authors":"Canran Zhang, Yijing Xu, Hui Tao, Pan Wang, Yunkang Cui, Qilong Wang","doi":"10.1515/nanoph-2024-0298","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0298","url":null,"abstract":"Optical interconnects, leveraging surface plasmon modes, are revolutionizing high-performance computing and AI, overcoming the limitations of electrical interconnects in speed, energy efficiency, and miniaturization. These nanoscale photonic circuits integrate on-chip light manipulation and signal conversion, marking significant advancements in optoelectronics and data processing efficiency. Here, we present a novel plasmonic interconnect circuit, by introducing refractive index matching layer, the device supports both pure SPP and different hybrid modes, allowing selective excitation and transmission based on light wavelength and polarization, followed by photocurrent conversion. We optimized the coupling gratings to fine-tune transmission modes around specific near-infrared wavelengths for effective electrical detection. Simulation results align with experimental data, confirming the device’s ability to detect complex optical modes. This advancement broadens the applications of plasmonic interconnects in high-speed, compact optoelectronic and sensor technologies, enabling more versatile nanoscale optical signal processing and transmission.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"22 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142160368","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

Anomalous reflection for highly efficient subwavelength light concentration and extraction with photonic funnels 利用反常反射实现高效亚波长光聚光和光子漏斗萃取

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-09-09 DOI: 10.1515/nanoph-2024-0213

Jacob LaMountain, Amogh Raju, Daniel Wasserman, Viktor A. Podolskiy

引用次数: 0

Asymmetric bi-level dual-core mode converter for high-efficiency and polarization-insensitive O-band fiber-chip edge coupling: breaking the critical size limitation 用于高效率和偏振不敏感 O 波段光纤芯片边缘耦合的不对称双电平双核模式转换器：打破临界尺寸限制

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-09-07 DOI: 10.1515/nanoph-2024-0320

Xiaolin Yi, Dongyue Sun, Weike Zhao, Hanwen Li, Long Zhang, Yaocheng Shi, Daoxin Dai

{"title":"Asymmetric bi-level dual-core mode converter for high-efficiency and polarization-insensitive O-band fiber-chip edge coupling: breaking the critical size limitation","authors":"Xiaolin Yi, Dongyue Sun, Weike Zhao, Hanwen Li, Long Zhang, Yaocheng Shi, Daoxin Dai","doi":"10.1515/nanoph-2024-0320","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0320","url":null,"abstract":"Efficient coupling between optical fibers and on-chip photonic waveguides has long been a crucial issue for photonic chips used in various applications. Edge couplers (ECs) based on an inverse taper have seen widespread utilization due to their intrinsic broadband operation. However, it still remains a big challenge to realize polarization-insensitive low-loss ECs working at the O-band (1,260–1,360 nm), mainly due to the strong polarization dependence of the mode coupling/conversion and the difficulty to fabricate the taper tip with an ultra-small feature size. In this paper, a high-efficiency and polarization-insensitive O-band EC is proposed and demonstrated with great advantages that is fully compatible with the current 130-nm-node fabrication processes. By introducing an asymmetric bi-level dual-core mode converter, the fundamental mode confined in the thick core is evanescently coupled to that in the thin core, which has an expanded mode size matched well with the fiber and works well for both TE/TM-polarizations. Particularly, no bi-level junction in the propagation direction is introduced between the thick and thin waveguide sections, thereby breaking the critical limitation of ultra-small feature sizes. The calculated coupling loss is 0.44–0.56/0.48–0.61 dB across the O-band, while achieving 1-dB bandwidths exceeding 340/230 nm for the TE/TM-polarization modes. For the fabricated ECs, the peak coupling loss is ∼0.82 dB with a polarization dependent loss of ∼0.31 dB at the O-band when coupled to a fiber with a mode field diameter of 4 μm. It is expected that this coupling scheme promisingly provides a general solution even for other material platforms, e.g., lithium niobate, silicon nitride and so on.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"48 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142152416","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

Neural network-assisted meta-router for fiber mode and polarization demultiplexing 用于光纤模式和偏振解复用的神经网络辅助元路由器

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-09-05 DOI: 10.1515/nanoph-2024-0338

Yu Zhao, Huijiao Wang, Tian Huang, Zhiqiang Guan, Zile Li, Lei Yu, Shaohua Yu, Guoxing Zheng

{"title":"Neural network-assisted meta-router for fiber mode and polarization demultiplexing","authors":"Yu Zhao, Huijiao Wang, Tian Huang, Zhiqiang Guan, Zile Li, Lei Yu, Shaohua Yu, Guoxing Zheng","doi":"10.1515/nanoph-2024-0338","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0338","url":null,"abstract":"Advancements in computer science have propelled society into an era of data explosion, marked by a critical need for enhanced data transmission capacity, particularly in the realm of space-division multiplexing and demultiplexing devices for fiber communications. However, recently developed mode demultiplexers primarily focus on mode divisions within one dimension rather than multiple dimensions (i.e., intensity distributions and polarization states), which significantly limits their applicability in space-division multiplexing communications. In this context, we introduce a neural network-assisted meta-router to recognize intensity distributions and polarization states of optical fiber modes, achieved through a single layer of metasurface optimized via neural network techniques. Specifically, a four-mode meta-router is theoretically designed and experimentally characterized, which enables four modes, comprising two spatial modes with two polarization states, independently divided into distinct spatial regions, and successfully recognized by positions of corresponding spatial regions. Our framework provides a paradigm for fiber mode demultiplexing apparatus characterized by application compatibility, transmission capacity, and function scalability with ultra-simple design and ultra-compact device. Merging metasurfaces, neural network and mode routing, this proposed framework paves a practical pathway towards intelligent metasurface-aided optical interconnection, including applications such as fiber communication, object recognition and classification, as well as information display, processing, and encryption.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"1 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142619","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

High-efficiency and broadband asymmetric spin–orbit interaction based on high-order composite phase modulation 基于高阶复合相位调制的高效宽带非对称自旋轨道相互作用

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-09-05 DOI: 10.1515/nanoph-2024-0344

Yuzhong Ou, Yan Chen, Fei Zhang, Mingbo Pu, Mengna Jiang, Mingfeng Xu, Yinghui Guo, Chaolong Feng, Ping Gao, Xiangang Luo

{"title":"High-efficiency and broadband asymmetric spin–orbit interaction based on high-order composite phase modulation","authors":"Yuzhong Ou, Yan Chen, Fei Zhang, Mingbo Pu, Mengna Jiang, Mingfeng Xu, Yinghui Guo, Chaolong Feng, Ping Gao, Xiangang Luo","doi":"10.1515/nanoph-2024-0344","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0344","url":null,"abstract":"Asymmetric spin–orbit interaction (ASOI) breaks the limitations in conjugate symmetry of traditional geometric phase metasurfaces, bringing new opportunities for various applications such as spin-decoupled holography, imaging, and complex light field manipulation. Since anisotropy is a requirement for spin–orbit interactions, existing ASOI mainly relies on meta-atom with C1 and C2 symmetries, which usually suffer from an efficiency decrease caused by the propagation phase control through the structural size. Here, we demonstrate for the first time that ASOI can be realized in meta-atoms with rotational symmetry ≥3 by combining the generalized geometric phase with the propagation phase. Utilizing an all-metallic configuration, the average diffraction efficiency of the spin-decoupled beam deflector based on C3 meta-atoms reaches ∼84 % in the wavelength range of 9.3–10.6 μm, which is much higher than that of the commonly used C2 meta-atoms with the same period and height. This is because the anisotropy of the C3 metasurface originates from the lattice coupling effect, which is relatively insensitive to the propagation phase control through the meta-atom size. A spin-decoupled beam deflector and hologram meta-device were experimentally demonstrated and performed well over a broadband wavelength range. This work opens a new route for ASOI, which is significant for realizing high-efficiency and broadband spin-decoupled meta-devices.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"102 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142626","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

Highly uniform silicon nanopatterning with deep-ultraviolet femtosecond pulses 利用深紫外飞秒脉冲实现高度均匀的硅纳米图案化

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-09-04 DOI: 10.1515/nanoph-2024-0240

Eduardo Granados, Miguel Martinez-Calderon, Baptiste Groussin, Jean Philippe Colombier, Ibon Santiago

{"title":"Highly uniform silicon nanopatterning with deep-ultraviolet femtosecond pulses","authors":"Eduardo Granados, Miguel Martinez-Calderon, Baptiste Groussin, Jean Philippe Colombier, Ibon Santiago","doi":"10.1515/nanoph-2024-0240","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0240","url":null,"abstract":"The prospect of employing nanophotonic methods for controlling photon–electron interactions has ignited substantial interest within the particle accelerator community. Silicon-based integrated dielectric laser acceleration (DLA) has emerged as a viable option by leveraging localized photonic effects to emit, accelerate, and measure electron bunches using exclusively light. Here, using highly regular nanopatterning over large areas while preserving the crystalline structure of silicon is imperative to enhance the efficiency and yield of photon-electron effects. While several established fabrication techniques may be used to produce the required silicon nanostructures, alternative techniques are beneficial to enhance scalability, simplicity and cost-efficiency. In this study, we demonstrate the nano-synthesis of silicon structures over arbitrarily large areas utilizing exclusively deep ultraviolet (DUV) ultrafast laser excitation. This approach delivers highly concentrated electromagnetic energy to the material, thus producing nanostructures with features well beyond the diffraction limit. At the core of our demonstration is the production of silicon laser-induced surface structures with an exceptionally high aspect-ratio -reaching a height of more than 100 nm- for a nanostructure periodicity of 250 nm. This result is attained by exploiting a positive feedback effect on the locally enhanced laser electric field as the surface morphology dynamically emerges, in combination with the material properties at DUV wavelengths. We also observe strong nanopattern hybridization yielding intricate 2D structural features as the onset of amorphization takes place at high laser pulse fluence. This technique offers a simple, yet efficient and attractive approach to produce highly uniform and high aspect ratio silicon nanostructures in the 200–300 nm range.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"101 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142138105","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

Optical Zitterbewegung effect in arrays of helical waveguides 螺旋波导阵列中的光学齐特贝格效应

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-09-04 DOI: 10.1515/nanoph-2024-0329

Kaiyun Zhan, Qixuan Chen, Qian Zhang, Tingjun Zhao, Hanqiang Qin, Haolong He, Guangting Yao

引用次数: 0

Low-loss and compact arbitrary-order silicon mode converter based on hybrid shape optimization 基于混合形状优化的低损耗、紧凑型任意阶硅模式转换器

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-08-29 DOI: 10.1515/nanoph-2024-0301

Junpeng Liao, Dongmei Huang, Yegang Lu, Yan Li, Ye Tian

{"title":"Low-loss and compact arbitrary-order silicon mode converter based on hybrid shape optimization","authors":"Junpeng Liao, Dongmei Huang, Yegang Lu, Yan Li, Ye Tian","doi":"10.1515/nanoph-2024-0301","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0301","url":null,"abstract":"Mode converters (MCs) play an essential role in mode-division multiplexing (MDM) systems. Numerous schemes have been developed on the silicon-on-insulator (SOI) platform, yet most of them focus solely on the conversion of fundamental mode to one or two specific higher-order modes. In this study, we introduce a hybrid shape optimization (HSO) method that combines particle swarm optimization (PSO) with adjoint methods to optimize the shape of the S-bend waveguide, facilitating the design of arbitrary-order MCs featuring compactness and high performance. Our approach was validated by designing a series of 13 μm-long MCs, enabling efficient conversion between various TE modes, ranging from TE0 to TE3. These devices can be fabricated in a single lithography step and exhibit robust fabrication tolerances. Experiment results indicate that these converters achieve low insertion losses under 1 dB and crosstalks below −15 dB across bandwidths of 80 nm (TE0–TE1), 62 nm (TE0–TE2), 70 nm (TE0–TE3), 80 nm (TE1–TE2), 55 nm (TE1–TE3), and 75 nm (TE2–TE3). This advancement paves the way for flexible mode conversion, significantly enhancing the versatility of on-chip MDM technologies.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"146 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142100987","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

Design of optical Kerr effect in multilayer hyperbolic metamaterials 多层双曲超材料中的光学克尔效应设计

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-08-28 DOI: 10.1515/nanoph-2024-0169

Domenico Genchi, Francesca Dodici, Tiziana Cesca, Giovanni Mattei

引用次数: 0

Millimeter-precision positioning for wide-angle indoor area enabled by metalens-integrated camera 利用金属膜集成摄像头实现毫米级精度室内广角定位

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2024-08-28 DOI: 10.1515/nanoph-2024-0277

Muyang Li, Yue Wu, Haobai Li, Zi-Wen Zhou, Yanxiang Zhang, Zhongyi Yuan, Zaichen Zhang, Ji Chen

{"title":"Millimeter-precision positioning for wide-angle indoor area enabled by metalens-integrated camera","authors":"Muyang Li, Yue Wu, Haobai Li, Zi-Wen Zhou, Yanxiang Zhang, Zhongyi Yuan, Zaichen Zhang, Ji Chen","doi":"10.1515/nanoph-2024-0277","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0277","url":null,"abstract":"Due to signal shielding caused by building structures, conventional mature positioning technologies such as the Global Positioning System (GPS) are only suitable for outdoor navigation and detection. However, there are many scenarios that urgently require high-precision indoor positioning technologies, such as indoor wireless optical communications (OWCs), navigation in large buildings, and warehouse management. Here, we proposed a millimeter-precision indoor positioning technology based on metalens-integrated camera, which determines the position of the device through imaging of beacon LEDs. Thanks to the wide-angle imaging design of our metalens, the camera can accurately capture images of beacon LEDs even when it is situated in distant corner locations. Consequently, our localization scheme achieves millimeter-level positioning accuracy across majority of wide-angle (∼120°) indoor area. Compared to traditional positioning schemes by photodiode (PD), our imaging-based approach demonstrates superior resistance to interference, thereby safeguarding positioning precision from the external signals influence. Furthermore, the compact dimensions and high performances of the positioning device make it suitable for integration into highly portable devices, such as smartphones and drones, revealing its broad potential applications in the future.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"5 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142089913","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