Engineering最新文献_第10页

Machine-Learning-Assisted Compositional Design of Refractory High-Entropy Alloys with Optimal Strength and Ductility 具有最佳强度和延展性的难熔高熵合金的机器学习辅助成分设计

IF 10.1 1区工程技术

Engineering Pub Date : 2025-03-01 DOI: 10.1016/j.eng.2023.11.026

Cheng Wen , Yan Zhang , Changxin Wang , Haiyou Huang , Yuan Wu , Turab Lookman , Yanjing Su

{"title":"Machine-Learning-Assisted Compositional Design of Refractory High-Entropy Alloys with Optimal Strength and Ductility","authors":"Cheng Wen , Yan Zhang , Changxin Wang , Haiyou Huang , Yuan Wu , Turab Lookman , Yanjing Su","doi":"10.1016/j.eng.2023.11.026","DOIUrl":"10.1016/j.eng.2023.11.026","url":null,"abstract":"<div><div>Designing refractory high-entropy alloys (RHEAs) for high-temperature (HT) applications is an outstanding challenge given the vast possible composition space, which contains billions of candidates, and the need to optimize across multiple objectives. Here, we present an approach that accelerates the discovery of RHEA compositions with superior strength and ductility by integrating machine learning (ML), genetic search, cluster analysis, and experimental design. We iteratively synthesize and characterize 24 predicted compositions after six feedback loops. Four compositions show outstanding combinations of HT yield strength and room-temperature (RT) ductility spanning the ranges of 714–1061 MPa and 17.2%–50.0% fracture strain, respectively. We identify an attractive alloy system, ZrNbMoHfTa, particularly the composition Zr<sub>0.13</sub>Nb<sub>0.27</sub>Mo<sub>0.26</sub>Hf<sub>0.13</sub>Ta<sub>0.21</sub>, which demonstrates a yield approaching 940 MPa at 1200 °C and favorable RT ductility with 17.2% fracture strain. The high yield strength at 1200 °C exceeds that reported for RHEAs, with 1200 °C exceeding the service temperature limit for nickel (Ni)-based superalloys. Our ML-based approach makes it possible to rapidly optimize multiple properties for materials design, thus overcoming the common problems of limited data and a vast composition space in complex materials systems while satisfying multiple objectives.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"46 ","pages":"Pages 214-223"},"PeriodicalIF":10.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring Electric Vehicle Purchases and Residential Choices in a Two-Dimensional Monocentric City: An Agent-Based Microeconomic Model 二维单中心城市电动汽车购买与居住选择研究：基于主体的微观经济模型

IF 10.1 1区工程技术

Engineering Pub Date : 2025-03-01 DOI: 10.1016/j.eng.2024.12.001

Chao Shu , Yue Bao , Ziyou Gao , Zaihan Gao

{"title":"Exploring Electric Vehicle Purchases and Residential Choices in a Two-Dimensional Monocentric City: An Agent-Based Microeconomic Model","authors":"Chao Shu , Yue Bao , Ziyou Gao , Zaihan Gao","doi":"10.1016/j.eng.2024.12.001","DOIUrl":"10.1016/j.eng.2024.12.001","url":null,"abstract":"<div><div>Vehicle electrification, an important method for reducing carbon emissions from road transport, has been promoted globally. In this study, we analyze how individuals adapt to this transition in transportation and its subsequent impact on urban structure. Considering the varying travel costs associated with electric and fuel vehicles, we analyze the dynamic choices of households concerning house locations and vehicle types in a two-dimensional monocentric city. A spatial equilibrium is developed to model the interactions between urban density, vehicle age and vehicle type. An agent-based microeconomic residential choice model dynamically coupled with a house rent market is developed to analyze household choices of home locations and vehicle energy types, considering vehicle ages and competition for public charging piles. Key findings from our proposed models show that the proportion of electric vehicles (EVs) peaks at over 50% by the end of the first scrappage period, accompanied by more than a 40% increase in commuting distance and time compared to the scenario with only fuel vehicles. Simulation experiments on a theoretical grid indicate that heterogeneity-induced residential segregation can lead to urban sprawl and congestion. Furthermore, households with EVs tend to be located farther from the city center, and an increase in EV ownership contributes to urban expansion. Our study provides insights into how individuals adapt to EV transitions and the resulting impacts on home locations and land use changes. It offers a novel perspective on the dynamic interactions between EV adoption and urban development.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"46 ","pages":"Pages 316-330"},"PeriodicalIF":10.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Decade Review of Video Compressive Sensing: A Roadmap to Practical Applications 视频压缩感知十年回顾：走向实际应用的路线图

IF 10.1 1区工程技术

Engineering Pub Date : 2025-03-01 DOI: 10.1016/j.eng.2024.08.013

Zhihong Zhang , Siming Zheng , Min Qiu , Guohai Situ , David J. Brady , Qionghai Dai , Jinli Suo , Xin Yuan

{"title":"A Decade Review of Video Compressive Sensing: A Roadmap to Practical Applications","authors":"Zhihong Zhang , Siming Zheng , Min Qiu , Guohai Situ , David J. Brady , Qionghai Dai , Jinli Suo , Xin Yuan","doi":"10.1016/j.eng.2024.08.013","DOIUrl":"10.1016/j.eng.2024.08.013","url":null,"abstract":"<div><div>It has been over a decade since the first coded aperture video compressive sensing (CS) system was reported. The underlying principle of this technology is to employ a high-frequency modulator in the optical path to modulate a recorded high-speed scene within one integration time. The superimposed image captured in this manner is modulated and compressed, since multiple modulation patterns are imposed. Following this, reconstruction algorithms are utilized to recover the desired high-speed scene. One leading advantage of video CS is that a single captured measurement can be used to reconstruct a multi-frame video, thereby enabling a low-speed camera to capture high-speed scenes. Inspired by this, a number of variants of video CS systems have been built, mainly using different modulation devices. Meanwhile, in order to obtain high-quality reconstruction videos, many algorithms have been developed, from optimization-based iterative algorithms to deep-learning-based ones. Recently, emerging deep learning methods have been dominant due to their high-speed inference and high-quality reconstruction, highlighting the possibility of deploying video CS in practical applications. Toward this end, this paper reviews the progress that has been achieved in video CS during the past decade. We further analyze the efforts that need to be made—in terms of both hardware and algorithms—to enable real applications. Research gaps are put forward and future directions are summarized to help researchers and engineers working on this topic.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"46 ","pages":"Pages 172-185"},"PeriodicalIF":10.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microfluidic Barcode Biochips for High-Throughput Real-Time Biomolecule and Single-Cell Screening 用于高通量实时生物分子和单细胞筛选的微流控条形码生物芯片

IF 10.1 1区工程技术

Engineering Pub Date : 2025-03-01 DOI: 10.1016/j.eng.2024.06.016

Jiaoyan Qiu , Yanbo Liang , Chao Wang , Yang Yu , Yu Zhang , Hong Liu , Lin Han

{"title":"Microfluidic Barcode Biochips for High-Throughput Real-Time Biomolecule and Single-Cell Screening","authors":"Jiaoyan Qiu , Yanbo Liang , Chao Wang , Yang Yu , Yu Zhang , Hong Liu , Lin Han","doi":"10.1016/j.eng.2024.06.016","DOIUrl":"10.1016/j.eng.2024.06.016","url":null,"abstract":"<div><div>The real-time screening of biomolecules and single cells in biochips is extremely important for disease prediction and diagnosis, cellular analysis, and life science research. Barcode biochip technology, which is integrated with microfluidics, typically comprises barcode array, sample loading, and reaction unit array chips. Here, we present a review of microfluidics barcode biochip analytical approaches for the high-throughput screening of biomolecules and single cells, including protein biomarkers, microRNA (miRNA), circulating tumor DNA (ctDNA), single-cell secreted proteins, single-cell exosomes, and cell interactions. We begin with an overview of current high-throughput detection and analysis approaches. Following this, we outline recent improvements in microfluidic devices for biomolecule and single-cell detection, highlighting the benefits and limitations of these devices. This paper focuses on the research and development of microfluidic barcode biochips, covering their self-assembly substrate materials and their specific applications with biomolecules and single cells. Looking forward, we explore the prospects and challenges of this technology, with the aim of contributing toward the use of microfluidic barcode detection biochips in medical diagnostics and therapies, and their large-scale commercialization.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"46 ","pages":"Pages 130-146"},"PeriodicalIF":10.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141776938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Data Driven Comprehensive Performance Evaluation of Aeroengines: A Network Dynamic Approach 数据驱动的航空发动机综合性能评价：一种网络动态方法

IF 10.1 1区工程技术

Engineering Pub Date : 2025-03-01 DOI: 10.1016/j.eng.2024.11.024

Yuting Wang , Feng Liu , Feng Xi , Bofei Wei , Dongli Duan , Zhiqiang Cai , Shubin Si

{"title":"Data Driven Comprehensive Performance Evaluation of Aeroengines: A Network Dynamic Approach","authors":"Yuting Wang , Feng Liu , Feng Xi , Bofei Wei , Dongli Duan , Zhiqiang Cai , Shubin Si","doi":"10.1016/j.eng.2024.11.024","DOIUrl":"10.1016/j.eng.2024.11.024","url":null,"abstract":"<div><div>Aeroengines, often regarded as the heart of aircraft, are crucial for flight safety and performance. Comprehensive performance evaluation of aeroengines supports Prognostics and Health Management (PHM) and aeroengine digital engineering. Due to their highly integrated nature, aeroengines present challenges in performance evaluation because their test-run data are high-dimensional, large-scale, and exhibit strong nonlinear correlations among test indicators. To solve this problem, this study proposes a unified framework of the comprehensive performance evaluation of aeroengines to assess performance objectively and globally. Specifically, the network model and the dynamics model of aeroengine performance are constructed driven by test-run data, which can explain the patterns of system state changes and the internal relationship, and depict the system accurately. Based on that, three perturbations in the model are used to simulate three fault modes of aeroengines. Moreover, the comprehensive performance evaluation indexes of aeroengines are proposed to evaluate the performance dynamically from two dimensions, the coupling performance and the activity performance. Thirteen test-run qualified and four test-run failed aeroengines are used to validate and establish the qualified ranges. The results demonstrate that the comprehensive evaluation indexes can distinguish test-run qualified and test-run failed aeroengines. By changing the dynamic parameters, the comprehensive performance under any thrust and inlet guide vanes (IGV) angle can be estimated, broadening the test-run scenarios beyond a few typical states. This novel approach offers significant advancements for the comprehensive performance evaluation and management of aeroengines, paving the way for future PHM and aeroengine digital engineering developments.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"46 ","pages":"Pages 292-305"},"PeriodicalIF":10.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Current Advances of Artificial Ligaments for Anterior Cruciate Ligament Reconstruction: From Biocompatibility to Bioactivity 前交叉韧带重建人工韧带的研究进展：从生物相容性到生物活性

IF 10.1 1区工程技术

Engineering Pub Date : 2025-03-01 DOI: 10.1016/j.eng.2024.10.018

Haozhi Zhang , Xin Chen , Michael Tim-Yun Ong , Lei Lei , Lizhen Zheng , Bingyang Dai , Wenxue Tong , Bruma Sai-Chuen Fu , Jiankun Xu , Patrick Shu-Hang Yung , Ling Qin

{"title":"Current Advances of Artificial Ligaments for Anterior Cruciate Ligament Reconstruction: From Biocompatibility to Bioactivity","authors":"Haozhi Zhang , Xin Chen , Michael Tim-Yun Ong , Lei Lei , Lizhen Zheng , Bingyang Dai , Wenxue Tong , Bruma Sai-Chuen Fu , Jiankun Xu , Patrick Shu-Hang Yung , Ling Qin","doi":"10.1016/j.eng.2024.10.018","DOIUrl":"10.1016/j.eng.2024.10.018","url":null,"abstract":"<div><div>Anterior cruciate ligament (ACL) injuries are frequently caused by sports injuries and trauma. In cases involving complete tears, ACL reconstruction (ACLR) surgery is the only way to restore the ligament’s integrity. When selecting a graft, both the potential complications and the mechanical properties and healing efficacies should be considered. Artificial ligaments have been widely applied in clinical ACLR, and most have exhibited satisfactory biocompatibility and short-term follow-up results. Compared with autografts and allografts, however, the lack of bioactivity of currently available artificial ligaments is a major disadvantage. In addition, some long-term follow-up results have revealed other drawbacks of artificial ligaments, such as graft failure and other complications. Here, we summarize attempts to enhance the bioactive performance of artificial ligaments, as such modifications may have good potential for clinical translation and could improve the long-term outcomes of existing products.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"46 ","pages":"Pages 47-59"},"PeriodicalIF":10.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Performance Flexible Magnetic Textile Fabricated Using Porous Juncus effusus Fiber for Biomechanical Energy Harvesting 利用多孔积液结纤维制备高性能柔性磁性纺织品用于生物力学能量收集

IF 10.1 1区工程技术

Engineering Pub Date : 2025-03-01 DOI: 10.1016/j.eng.2024.06.002

Junyao Gong , Chunhua Zhang , Liangjun Xia , Zhaozixuan Zhou , Weihao Long , Zhuan Fu , Sijie Zhou , Hua Ji , Lixin Du , Weilin Xu

{"title":"High-Performance Flexible Magnetic Textile Fabricated Using Porous Juncus effusus Fiber for Biomechanical Energy Harvesting","authors":"Junyao Gong , Chunhua Zhang , Liangjun Xia , Zhaozixuan Zhou , Weihao Long , Zhuan Fu , Sijie Zhou , Hua Ji , Lixin Du , Weilin Xu","doi":"10.1016/j.eng.2024.06.002","DOIUrl":"10.1016/j.eng.2024.06.002","url":null,"abstract":"<div><div>Mechanical energy produced by human motion is ubiquitous, continuous, and usually not utilized, making it an attractive target for sustainable electricity-harvesting applications. In this study, flexible magnetic-<em>Juncus effusus</em> (M-JE) fibers were prepared from plant-extracted three-dimensional porous <em>Juncus effusus</em> (JE) fibers decorated with polyurethane and magnetic particles. The M-JE fibers were woven into fabrics and used for mechanical energy harvesting through electromagnetic induction. The M-JE fabric and induction coil, attached to the human wrist and waist, yielded continuous and stable voltage (2 V) and current (3 mA) during swinging. The proposed M-JE fabric energy harvester exhibited good energy harvesting potential and was capable of quickly charging commercial capacitors to power small electronic devices. The proposed M-JE fabric exhibited good mechanical energy harvesting performance, paving the way for the use of natural plant fibers in energy-harvesting fabrics.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"46 ","pages":"Pages 267-277"},"PeriodicalIF":10.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Data Quality and Imbalance in Machine Learning-based Design and Manufacturing—A Systematic Review 基于机器学习的设计与制造中的数据质量与不平衡--系统综述

IF 10.1 1区工程技术

Engineering Pub Date : 2025-02-01 DOI: 10.1016/j.eng.2024.04.024

Jiarui Xie , Lijun Sun , Yaoyao Fiona Zhao

{"title":"On the Data Quality and Imbalance in Machine Learning-based Design and Manufacturing—A Systematic Review","authors":"Jiarui Xie , Lijun Sun , Yaoyao Fiona Zhao","doi":"10.1016/j.eng.2024.04.024","DOIUrl":"10.1016/j.eng.2024.04.024","url":null,"abstract":"<div><div>Machine learning (ML) has recently enabled many modeling tasks in design, manufacturing, and condition monitoring due to its unparalleled learning ability using existing data. Data have become the limiting factor when implementing ML in industry. However, there is no systematic investigation on how data quality can be assessed and improved for ML-based design and manufacturing. The aim of this survey is to uncover the data challenges in this domain and review the techniques used to resolve them. To establish the background for the subsequent analysis, crucial data terminologies in ML-based modeling are reviewed and categorized into data acquisition, management, analysis, and utilization. Thereafter, the concepts and frameworks established to evaluate data quality and imbalance, including data quality assessment, data readiness, information quality, data biases, fairness, and diversity, are further investigated. The root causes and types of data challenges, including human factors, complex systems, complicated relationships, lack of data quality, data heterogeneity, data imbalance, and data scarcity, are identified and summarized. Methods to improve data quality and mitigate data imbalance and their applications in this domain are reviewed. This literature review focuses on two promising methods: data augmentation and active learning. The strengths, limitations, and applicability of the surveyed techniques are illustrated. The trends of data augmentation and active learning are discussed with respect to their applications, data types, and approaches. Based on this discussion, future directions for data quality improvement and data imbalance mitigation in this domain are identified.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"45 ","pages":"Pages 105-131"},"PeriodicalIF":10.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141703431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic Cost–Benefit Analysis of Digitalization in the Energy Industry 能源行业数字化的动态成本效益分析

IF 10.1 1区工程技术

Engineering Pub Date : 2025-02-01 DOI: 10.1016/j.eng.2024.11.005

Jose Angel Leiva Vilaplana , Guangya Yang , Emmanuel Ackom , Roberto Monaco , Yusheng Xue

{"title":"Dynamic Cost–Benefit Analysis of Digitalization in the Energy Industry","authors":"Jose Angel Leiva Vilaplana , Guangya Yang , Emmanuel Ackom , Roberto Monaco , Yusheng Xue","doi":"10.1016/j.eng.2024.11.005","DOIUrl":"10.1016/j.eng.2024.11.005","url":null,"abstract":"<div><div>Assessing the benefits and costs of digitalization in the energy industry is a complex issue. Traditional cost–benefit analysis (CBA) might encounter problems in addressing uncertainties, dynamic stakeholder interactions, and feedback loops arising out of the evolving nature of digitalization. This paper introduces a methodological framework to help address the intricate inter connections between digital applications and business models in the energy industry. The proposed framework leverages system dynamics to achieve two primary objectives. It investigates how digitalization generally influences the value proposition, value capture, and value creation dimensions of business models. It also quantifies the financial and social impacts of digitalization from a dynamic perspective. The proposed dynamic CBA allows for a more precise quantification of the benefits and costs, associated with evidence-based decision-making. Findings from an illustrative case study challenge the static assumptions of conventional methods. These methods often presume continuous operation, neglecting reinvestment and operational feedback loops, and resulting in negative net present values. Conversely, the outcomes of the proposed method indicate positive net present values when accounting for factors such as reinvestment rates and the willingness to invest in digitalization projects. The principles outlined in this paper can enable a more accurate assessment of digitalization projects, thus catalyzing the development of new CBA applications and guidelines for digitalization.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"45 ","pages":"Pages 174-187"},"PeriodicalIF":10.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Time Evolution of Orbital Angular Momentum Modes for Deep-Routing Multiplexing Channels 深度路由复用信道轨道角动量模式的时间演化

IF 10.1 1区工程技术

Engineering Pub Date : 2025-02-01 DOI: 10.1016/j.eng.2024.09.016

Zebin Huang , Peipei Wang , Jiafu Chen , Wenjie Xiong , Huapeng Ye , Xinxing Zhou , Ze Dong , Dianyuan Fan , Shuqing Chen

{"title":"Time Evolution of Orbital Angular Momentum Modes for Deep-Routing Multiplexing Channels","authors":"Zebin Huang , Peipei Wang , Jiafu Chen , Wenjie Xiong , Huapeng Ye , Xinxing Zhou , Ze Dong , Dianyuan Fan , Shuqing Chen","doi":"10.1016/j.eng.2024.09.016","DOIUrl":"10.1016/j.eng.2024.09.016","url":null,"abstract":"<div><div>Optical orbital angular momentum (OAM) mode multiplexing has emerged as a promising technique for boosting communication capacity. However, most existing studies have concentrated on channel (de)multiplexing, overlooking the critical aspect of channel routing. This challenge involves the reallocation of multiplexed OAM modes across both spatial and temporal domains—a vital step for developing versatile communication networks. To address this gap, we introduce a novel approach based on the time evolution of OAM modes, utilizing the orthogonal conversion and diffractive modulation capabilities of unitary transformations. This approach facilitates high-dimensional orthogonal transformations of OAM mode vectors, altering both the propagation direction and the spatial location. Using Fresnel diffraction matrices as unitary operators, it manipulates the spatial locations of light beams during transmission, breaking the propagation invariance and enabling temporal evolution. As a demonstration, we have experimentally implemented the deep routing of four OAM modes within two distinct time sequences. Achieving an average diffraction efficiency above 78.31%, we have successfully deep-routed 4.69 Tbit·s<sup>−1</sup> quadrature phase-shift keying (QPSK) signals carried by four multiplexed OAM channels, with a bit error rate below 10<sup>–6</sup>. These results underscore the efficacy of our routing strategy and its promising prospects for practical applications.</div></div>","PeriodicalId":11783,"journal":{"name":"Engineering","volume":"45 ","pages":"Pages 97-104"},"PeriodicalIF":10.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0