Nanophotonics最新文献

Ultrafast pulse propagation time-domain dynamics in dispersive one-dimensional photonic waveguides

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-28 DOI: 10.1515/nanoph-2024-0567

Ahmet Oguz Sakin, Ali Murat Demirtas, Hamza Kurt, Mehmet Unlu

{"title":"Ultrafast pulse propagation time-domain dynamics in dispersive one-dimensional photonic waveguides","authors":"Ahmet Oguz Sakin, Ali Murat Demirtas, Hamza Kurt, Mehmet Unlu","doi":"10.1515/nanoph-2024-0567","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0567","url":null,"abstract":"Ultrafast pulses, particularly those with durations under 100 fs, are crucial in achieving unprecedented precision and control in light–matter interactions. However, conventional on-chip photonic platforms are not inherently designed for ultrafast time-domain operations, posing a significant challenge in achieving essential parameters such as high peak power and high temporal resolution. This challenge is particularly pronounced when propagating through integrated waveguides with nonlinear and high-dispersion profiles. In addressing this challenge, we present a design methodology for ultrafast pulse propagation in dispersive integrated waveguides, specifically focused on enhancing the time-domain characteristics of one-dimensional grating waveguides (1DGWs). The proposed methodology aims to determine the optimal structural parameters for achieving maximum peak power, enhanced temporal resolution, and extended pulse storage duration during ultrafast pulse propagation. To validate this approach, we design and fabricate two specialized 1DGWs on a silicon-on-insulator (SOI) platform. A digital finite impulse response (FIR) model, trained with both transmission and phase measurement data, is employed to obtain ultrafast time-domain characteristics, enabling easy extraction of these results. Our approach achieves a 2.8-fold increase in peak power and reduces pulse broadening by 24 %, resulting in a smaller sacrifice in temporal resolution. These results can possibly pave the way for advanced light–matter interactions within dispersive integrated waveguides.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"20 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054855","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

Reliable, efficient, and scalable photonic inverse design empowered by physics-inspired deep learning

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-27 DOI: 10.1515/nanoph-2024-0504

Guocheng Shao, Tiankuang Zhou, Tao Yan, Yanchen Guo, Yun Zhao, Ruqi Huang, Lu Fang

{"title":"Reliable, efficient, and scalable photonic inverse design empowered by physics-inspired deep learning","authors":"Guocheng Shao, Tiankuang Zhou, Tao Yan, Yanchen Guo, Yun Zhao, Ruqi Huang, Lu Fang","doi":"10.1515/nanoph-2024-0504","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0504","url":null,"abstract":"On-chip computing metasystems composed of multilayer metamaterials have the potential to become the next-generation computing hardware endowed with light-speed processing ability and low power consumption but are hindered by current design paradigms. To date, neither numerical nor analytical methods can balance efficiency and accuracy of the design process. To address the issue, a physics-inspired deep learning architecture termed electromagnetic neural network (EMNN) is proposed to enable an efficient, reliable, and flexible paradigm of inverse design. EMNN consists of two parts: EMNN Netlet serves as a local electromagnetic field solver; Huygens–Fresnel Stitch is used for concatenating local predictions. It can make direct, rapid, and accurate predictions of full-wave field based on input fields of arbitrary variations and structures of nonfixed size. With the aid of EMNN, we design computing metasystems that can perform handwritten digit recognition and speech command recognition. EMNN increases the design speed by 17,000 times than that of the analytical model and reduces the modeling error by two orders of magnitude compared to the numerical model. By integrating deep learning techniques with fundamental physical principle, EMNN manifests great interpretability and generalization ability beyond conventional networks. Additionally, it innovates a design paradigm that guarantees both high efficiency and high fidelity. Furthermore, the flexible paradigm can be applicable to the unprecedentedly challenging design of large-scale, high-degree-of-freedom, and functionally complex devices embodied by on-chip optical diffractive networks, so as to further promote the development of computing metasystems.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"25 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044264","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 branched flow in nonlocal nonlinear medium

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-27 DOI: 10.1515/nanoph-2024-0564

Tongxun Zhao, Yudian Wang, Ruihan Peng, Peng Wang, Fangwei Ye

引用次数: 0

Photocurrent-induced harmonics in nanostructures

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-27 DOI: 10.1515/nanoph-2024-0610

Ihar Babushkin, Anton Husakou, Liping Shi, Ayhan Demircan, Milutin Kovacev, Uwe Morgner

引用次数: 0

Inverse design of nanophotonic devices enabled by optimization algorithms and deep learning: recent achievements and future prospects

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-27 DOI: 10.1515/nanoph-2024-0536

Junhyeong Kim, Jae-Yong Kim, Jungmin Kim, Yun Hyeong, Berkay Neseli, Jong-Bum You, Joonsup Shim, Jonghwa Shin, Hyo-Hoon Park, Hamza Kurt

{"title":"Inverse design of nanophotonic devices enabled by optimization algorithms and deep learning: recent achievements and future prospects","authors":"Junhyeong Kim, Jae-Yong Kim, Jungmin Kim, Yun Hyeong, Berkay Neseli, Jong-Bum You, Joonsup Shim, Jonghwa Shin, Hyo-Hoon Park, Hamza Kurt","doi":"10.1515/nanoph-2024-0536","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0536","url":null,"abstract":"Nanophotonics, which explores significant light–matter interactions at the nanoscale, has facilitated significant advancements across numerous research fields. A key objective in this area is the design of ultra-compact, high-performance nanophotonic devices to pave the way for next-generation photonics. While conventional brute-force, intuition-based forward design methods have produced successful nanophotonic solutions over the past several decades, recent developments in optimization methods and artificial intelligence offer new potential to expand these capabilities. In this review, we delve into the latest progress in the inverse design of nanophotonic devices, where AI and optimization methods are leveraged to automate and enhance the design process. We discuss representative methods commonly employed in nanophotonic design, including various meta-heuristic algorithms such as trajectory-based, evolutionary, and swarm-based approaches, in addition to adjoint-based optimization. Furthermore, we explore state-of-the-art deep learning techniques, involving discriminative models, generative models, and reinforcement learning. We also introduce and categorize several notable inverse-designed nanophotonic devices and their respective design methodologies. Additionally, we summarize the open-source inverse design tools and commercial foundries. Finally, we provide our perspectives on the current challenges of inverse design, while offering insights into future directions that could further advance this rapidly evolving field.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"77 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044263","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

Hyperbolic polariton-coupled emission optical microscopy

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-27 DOI: 10.1515/nanoph-2024-0617

Shilong Li, Zhaowei Liu, Yeon Ui Lee

引用次数: 0

General design flow for waveguide Bragg gratings

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-27 DOI: 10.1515/nanoph-2024-0498

Frank Brückerhoff-Plückelmann, Tim Buskasper, Julius Römer, Linus Krämer, Bilal Malik, Liam McRae, Linus Kürpick, Simon Palitza, Carsten Schuck, Wolfram Pernice

引用次数: 0

All-optical analog differential operation and information processing empowered by meta-devices

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-24 DOI: 10.1515/nanoph-2024-0540

Chen Zhou, Yongtian Wang, Lingling Huang

{"title":"All-optical analog differential operation and information processing empowered by meta-devices","authors":"Chen Zhou, Yongtian Wang, Lingling Huang","doi":"10.1515/nanoph-2024-0540","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0540","url":null,"abstract":"The burgeoning demand for high-performance computing, robust data processing, and rapid growth of big data necessitates the emergence of novel optical devices to efficiently execute demanding computational processes. The field of meta-devices, such as metamaterial or metasurface, has experienced unprecedented growth over the past two decades. By manipulating the amplitude, phase, polarization, and dispersion of light wavefronts in spatial, spectral, and temporal domains, viable solutions for the implementation of all-optical analog computation and information processing have been provided. In this review, we summarize the latest developments and emerging trends of computational meta-devices as innovative platforms for spatial optical analog differentiators and information processing. Based on the general concepts of spatial Fourier transform and Green’s function, we analyze the physical mechanisms of meta-devices in the application of amplitude differentiation, phase differentiation, and temporal differentiation and summarize their applications in image edge detection, image edge enhancement, and beam shaping. Finally, we explore the current challenges and potential solutions in optical analog differentiators and provide perspectives on future research directions and possible developments.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"77 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143030997","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

Dynamics of dual-orbit rotations of nanoparticles induced by spin–orbit coupling

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-24 DOI: 10.1515/nanoph-2024-0586

Yu Zhang, Qian Lin, Zikuan Zhuang, Fei Lin, Ling Hong, Zhen Che, Linqing Zhuo, Yongyao Li, Li Zhang, Dongxu Zhao

{"title":"Dynamics of dual-orbit rotations of nanoparticles induced by spin–orbit coupling","authors":"Yu Zhang, Qian Lin, Zikuan Zhuang, Fei Lin, Ling Hong, Zhen Che, Linqing Zhuo, Yongyao Li, Li Zhang, Dongxu Zhao","doi":"10.1515/nanoph-2024-0586","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0586","url":null,"abstract":"Spin–orbit coupling (SOC) in tightly focused optical fields offers a powerful mechanism for manipulating the complex motion of particles. However, to date, such a mechanism has only been applied to the single-orbit motion for particles, while multi-orbital dynamics have not yet been experimentally demonstrated. Here, the theoretical and experimental realization of dual-orbit rotational dynamics of nanoparticles in a tightly focused circularly polarized Laguerre-Gaussian beam is reported. Analyses reveal that the dual-orbit rotation of nanoparticles originates from SOC in a tightly focused vortex beam, with the motion velocity and direction determined by the topological charge of the beam. Experimentally, the dual-orbit rotation of polystyrene nanoparticles was observed for the first time using an inverted optical tweezer. In addition, the rotation velocity showed a clear linear dependence on the topological charge of the incident beam. This work reveals the pivotal role of SOC in enabling precise dual-orbit control at the nanoscale, paving the way for applications in optical sorting, grinding and delivery of microparticles.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"2 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143030998","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

Deterministic generation and nanophotonic integration of 2D quantum emitters for advanced quantum photonic functionalities 先进量子光子功能的二维量子发射体的确定性生成和纳米光子集成

IF 7.5 2区物理与天体物理

Nanophotonics Pub Date : 2025-01-23 DOI: 10.1515/nanoph-2024-0629

Jae-Pil So

{"title":"Deterministic generation and nanophotonic integration of 2D quantum emitters for advanced quantum photonic functionalities","authors":"Jae-Pil So","doi":"10.1515/nanoph-2024-0629","DOIUrl":"https://doi.org/10.1515/nanoph-2024-0629","url":null,"abstract":"Quantum emitters (QEs) are essential building blocks for quantum applications, such as quantum communication, quantum computing and metrology. Two-dimensional (2D) materials, such as transition metal dichalcogenides (TMDs) and hexagonal boron nitride (hBN), are promising platforms for scalable QE generation due to their unique properties, including their compatibility with external photonic structures. Advances in defect engineering and strain manipulation enable precise localization of emission sites within these materials, while integration with nanophotonic structures, including cavities and waveguides, enhances photon emission through the Purcell effect. This integration supports quantum functionalities like single-photon routing and spin-photon interactions. Challenges include achieving precise QE placement and emission control, as environmental factors can affect QE purity and indistinguishability. Nonetheless, electrically driven QEs, strain-tunable emission, and the integration of van der Waals magnets present opportunities for compact, scalable quantum devices with on-demand single-photon sources and spin-based quantum memory, positioning 2D QEs as foundational for next-generation quantum devices.","PeriodicalId":19027,"journal":{"name":"Nanophotonics","volume":"45 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020492","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