检索结果-内蒙古大学图书馆

OptoElectronics and Communications conference, OECC

作者： Gregory Tanyi Daniel Peace Han-Hao Cheng Guanghui Ren Xuan Hiep Dinh Mohammed Taha Arnan Mitchell Karsten Hoehn Christina Lim Ranjith Unnithan Department of Electrical and Electronic Engineering Faculty of Engineering and Information Technology The University of Melbourne Parkville VIC Australia Mineral Resources Commonwealth Scientific Industry and Research Organiasation Australian Research Council Centre of Excellence for Engineered Quantum Systems & School of Mathematics and Physics The University of Queensland St Lucia Queensland Australia Centre for Microscopy and Microanalysis The University of Queensland St Lucia Australia Integrated Photonics and Applications Centre School of Engineering RMIT University Melbourne Victoria Australia

ISBN: (数字)9798350308396

ISBN: (纸本)9798350308402

We present an integrated switch that combines plasmonic and neuromorphic technologies with a single sub-stoichiometric VO2-x nanoparticle. The presented device acts as a versatile plasmonic switch with dual thermal and electrical reconfigurability leveraging the near-room temperature phase transition of the VO2-x nanoparticles combined with the rapid phase recovery to drive the device. The change in both the optical and electrical properties of the VO2-x nanoparticle enables simultaneous optical and electrical readouts making the plasmonic device suitable as a phase change memory cell which is crucial in the convergence of computing and communication technologies. Our demonstration of reversible electrical switching, evidenced by a 6dB modulation depth and concurrent optical and electrical outputs, signifies a major stride in merging electronic and photonic functionalities within phase-change material devices. This novel strategy not only harmonizes optical communication with electronic computing but also advances the development of sophisticated integrated neuromorphic devices.

关键词： Phase change materials Nanoparticles Neuromorphic engineering Optical switches Vanadium Plasmons Nanoscale devices Optical modulation Optical devices Switching circuits

来源：评论

学校读者我要写书评

暂无评论

Building the Path to Ubiquitous Wireless Connectivity, from materials to systems

Building the Path to Ubiquitous Wireless Connectivity, from ...

引用

IEEE Electron devices Technology and Manufacturing conference (EDTM)

作者： Luis Andia Yvan Morandini Soitec Singapore Soitec France

Wireless systems and applications evolve together with the semiconductor technologies that make them possible. An essential element of such systems is the RF Front End (RFFE). In this paper, selected contributions of engineered substrates to the mobile 5G and Wi-Fi devices RFFE performance are studied. It provides guidance on required substrate evolution needed to address new and emerging challenges associated with next generation of wireless systems.

关键词： Wireless communication Radio frequency Performance evaluation Integrated circuits 5G mobile communication Ubiquitous computing Manufacturing

来源：评论

学校读者我要写书评

暂无评论

Estimation of Electronic Band Gap Energy from Material Properties Using Machine Learning

Estimation of Electronic Band Gap Energy From Material Prope...

引用

Cognitive, Green and Ubiquitous computing (IC-CGU), International conference on

作者： Sagar Prakash Barad Sajag Kumar Subhnakar Mishra An OCC of HBNI School of Physical Sciences NISER Bhubaneswar

ISBN: (数字)9798350361780

ISBN: (纸本)9798350361797

Machine learning techniques are utilized to estimate the electronic band gap energy and forecast the band gap category of materials based on experimentally quantifiable properties. The determination of band gap energy is critical for discerning various material properties, such as its metallic nature, and potential applications in electronic and optoelectronic devices. While numerical methods exist for computing band gap energy, they often entail high computational costs and have limitations in accuracy and scalability. A machine learning-driven model capable of swiftly predicting material band gap energy using easily obtainable experimental properties would offer a superior alternative to conventional density functional theory (DFT) methods. Our model does not require any preliminary DFT-based calculation or knowledge of the structure of the material. We present a scheme for improving the performance of simple regression and classification models by partitioning the dataset into multiple clusters. A new evaluation scheme for comparing the performance of ML-based models in material sciences involving both regression and classification tasks is introduced based on traditional evaluation metrics. It is shown that on this new evaluation metric, our method of clustering the dataset results in better performance.

关键词： Measurement Training photonic band gap Computational modeling Estimation Predictive models Ubiquitous computing

来源：评论

学校读者我要写书评

暂无评论

Investigation of Electro-Optical Properties of Cadmium Selenide (CdSe) Single Crystals: Impact of Annealing in Selenium (Se) Vapor

Investigation of Electro-Optical Properties of Cadmium Selen...

引用

IEEE conference Photovoltaic Specialists (PVSC)

作者： Magesh Murugesan Santosh Swain John McCloy Institute of Material Research Washington State University Pullman WA School of Mechanical & Materials Engineering Washington State University Pullman WA

ISBN: (数字)9781665464260

ISBN: (纸本)9781665475822

A CdSe crystal ingot was grown by high pressure Bridgman technique. Cut and polished samples were annealed with selenium overpressure. The research delves into the charge collection efficiency under alpha particle irradiation, revealing a noteworthy discrepancy in the drift lengths of holes and electrons in the annealed samples. Surprisingly, the drift length of holes is found to be significantly higher than that of electrons, contrary to conventional expectations. Additionally, the study reports a dark current below 10 nA at fields surpassing 1000 V/cm. These findings bear significance for electronic and photonic applications of CdSe, particularly in areas such as photovoltaics, radiation detectors, and infrared lasers. The insights gained from this investigation contribute valuable information for the optimization and advancement of CdSe-based devices in diverse technological applications

关键词： Photovoltaic systems Radiation effects Annealing II-VI semiconductor materials Radiation detectors Crystals Charge carrier processes Selenium Electro-optical waveguides Cadmium compounds

来源：评论

学校读者我要写书评

暂无评论

Toward accurate thermal modeling of phase change material based photonic devices

arXiv

引用

arXiv 2023年

作者： Aryana, Kiumars Kim, Hyun Jung Popescu, Cosmin-Constantin Vitale, Steven Bae, Hyung Bin Lee, Taewoo Gu, Tian Hu, Juejun NASA Langley Research Center HamptonVA23666 United States Department of Materials & Science Engineering Massachusetts Institute of Technology CambridgeMA United States Lincoln Laboratory Massachusetts Institute of Technology LexingtonMA United States KAIST Analysis Center Korea Advanced Institute of Science and Technology Yuseong-gu Daejeon34141 Korea Republic of Materials Research Laboratory Massachusetts Institute of Technology CambridgeMA United States

Reconfigurable or programmable photonic devices are rapidly growing and have become an integral part of many optical systems. The ability to selectively modulate electromagnetic waves through electrical stimuli is crucial in the advancement of a variety of applications from data communication and computing devices to environmental science and space explorations. Chalcogenide-based phase change materials (PCMs) are one of the most promising material candidates for reconfigurable photonics due to their large optical contrast between their different solid-state structural phases. Although significant efforts have been devoted to accurate simulation of PCM-based devices, in this paper, we highlight three important aspects which have often evaded prior models yet having significant impacts on the thermal and phase transition behavior of these devices: the enthalpy of fusion, the heat capacity change upon glass transition, as well as the thermal conductivity of liquid-phase PCMs. We further investigated the important topic of switching energy scaling in PCM devices, which also helps explain why the three above-mentioned effects have long been overlooked in electronic PCM memories but only become important in photonics. Our findings offer insight to facilitate accurate modeling of PCM-based photonic devices and can inform the development of more efficient reconfigurable optics. © 2023, CC BY.

关键词： Phase change materials

来源：评论

学校读者我要写书评

暂无评论

photonic-aware Neural Networks for Packet Classification in beyond 5G Networks 13

Photonic-aware Neural Networks for Packet Classification in ...

引用

13th International conference on the Network of the Future, NoF 2022

作者： Paolini, Emilio Civerchia, Federico De Marinis, Lorenzo Valcarenghi, Luca Maggiani, Luca Andriolli, Nicola Scuola Superiore sant'Anna Pisa56124 Italy TeCIP Institute Departments of Excellence Robotics & AI Italy National Research Council of Italy CNR-IEIIT Pisa56122 Italy Sma-RTy Italiat SRL Carugate20061 Italy

ISBN: (数字)9781665472548

ISBN: (纸本)9781665472548

The benefits introduced by novel network technologies such as 5G and beyond, including low latency and support for billions of devices, have the potential to transform the lives of people. However, the features promised by these new technologies have also attracted malicious actors, with various motivations for attacking the network infrastructure, from cybercrime-based frauds to political goals. Thus, to enable the full potential of the emerging network technologies, it is necessary to take into accounts these attacks and develop tailored countermeasures. One future direction in mitigating the risks of potential attacks is the automatic classification of malicious packets, with the possibility to drop them if classified in the attack category. Hence, in this context, we propose a solution based on Neural Networks (NNs) to automatically classify packets into two classes, i.e., benign and attack, directly in the Radio Access Network (RAN), specifically inspecting packets when they are relayed at the next generation eNB (gNB)-Central Unit (CU) level. Since NNs can be computationally intensive algorithms, potentially increasing the latency of the network, we decide to leverage photonic-Aware Neural Network (PANN), photonic accelerators able to perform NN computations in the analog optical domain and with time-of-flight latency. We devised two different PANN architectures, considering different photonic constraints. The classification performance of the two architectures has been assessed on the CICIDS-2017 dataset and compared with electronic counterparts. Results proved that the F1-score loss due to underlying hardware constraints is negligible, paving the way for PANN applications in next generation networks. © 2022 IEEE.

关键词： 5G mobile communication systems

来源：评论

学校读者我要写书评

暂无评论

Leaf Electronics: Nature-Based Substrates and Electrodes for Organic Electronic applications

Leaf Electronics: Nature-Based Substrates and Electrodes for...

引用

IEEE International conference on Flexible and Printable Sensors and systems (FLEPS)

作者： Rakesh Rajendran Nair Laura Teuerle Jakob Wolansky Hans Kleemann Karl Leo Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Dresden Germany

The need to reduce the environmental impact of inorganic electronic systems is pressing. Although the field of organic electronics provides a potential solution to this issue, research and optimization is still majorly carried out on glass or plastic substrates. Additionally, the fabrication of organic devices requiring transparent electrodes is fraught with complex techniques and expensive materials which limit widespread implementation and sustainability goals. Here, we show that the quasi-fractal lignocellulose structures extracted from natural leaves can be successfully modified to be used as biodegradable substrates as well as electrodes for optoelectronic applications. Chemically coating the microstructures of these leaf skeletons with metals results in quasi-transparent, flexible electrodes having sheet resistances below $1 \Omega/\square$ and a concomitant current carrying capacity as high as 6 A over a $2.5 \times 2.5\text{cm}^applications$ leaf electrode, all while maintaining broadband optical transmittance values of around 80%.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Inexact Silicon photonics: from devices to applications

Inexact Silicon Photonics: From Devices to Applications

引用

photonics in Switching and computing, PSC 2021

作者： Shafiee, Amin Mirza, Asif Sunny, Febin Banerjee, Sanmitra Chakrabarty, Krishnendu Pasricha, Sudeep Nikdast, Mahdi Department of Electrical and Computer Engineering Colorado State University Fort CollinsCO80523 United States Department of Electrical and Computer Engineering Duke University DurhamNC27708 United States

We present an overview of our recent work on variation analysis in silicon photonic integrated circuits. We discuss the promise of design-space exploration and approximate communication to enhance robustness in system...

ISBN: (纸本)9781557528209

关键词：

来源：评论

学校读者我要写书评

暂无评论

Industry-Oriented Lightweight Simulation System 29

Industry-Oriented Lightweight Simulation System

引用

29th IEEE International conference on Parallel and Distributed systems, ICPADS 2023

作者： Liu, Changwei Ren, Hao Zhou, Nan Li, Guoqiang Liang, XiaoJun Gui, Weihua Yang, Chunhua South China University of Technology School of Future Technology Guangzhou510006 China Peng Cheng Laboratory Department of Strategic and Advanced Interdisciplinary Research Shenzhen518055 China South China University of Technology School of Materials Science and Engineering Guangzhou510000 China Central South University School of Automation Chang Sha410083 China

ISBN: (纸本)9798350330717

In order to address the simulation requirements arising from limited computational resources, non-reusable complex models, and low-latency demands for edge devices within the realm of the Industrial Internet of Things (IIoT), we have successfully defined and developed a Lightweight Simulation System(LSS) specifically designed for industrial applications. This system draws inspiration from the architectural principles of edge and fog computing. LSS leverages an innovative architectural paradigm known as Function as a Service (FaaS), which demonstrates an even finer granularity compared to the traditional microservices architecture. Within the framework of LSS, we have discretely compartmentalized distinct operational elements, such as data acquisition and storage, model computation, and model visualization, into Docker microservices. This strategic shift in design effectively alleviates the need for developers to be overly concerned with the intricacies of server management and domain-specific industrial knowledge. Consequently, this enables them to shift their focus towards determining "what needs to be accomplished,"thereby transforming the granularity of work from being server-centric to a more task-centric perspective. In comparison to simulation platforms within other frameworks, LSS distinguishes itself through its remarkable attributes, which include a lightweight structure, minimal coupling, and superior real-time performance. These unique qualities substantially enhance the collaborative, shared, and reusable capabilities of simulation systems across various dimensions. To substantiate the viability of LSS, this paper provides empirical evidence by applying it to Electrolysis and partial cascade algorithms in the context of hydrometallurgy. The results underscore the fact that the LSS system significantly improves modeling efficiency, fosters the reusability of models and algorithms, and elevates the level of industrial automation across diverse processes. ©

关键词： Cloud collaboration Industrial automation Lightweight System simulation

来源：评论

学校读者我要写书评

暂无评论

Integrated electro-optics on thin-film lithium niobate

arXiv

引用

arXiv 2024年

作者： Hu, Yaowen Zhu, Di Lu, Shengyuan Zhu, Xinrui Song, Yunxiang Renaud, Dylan Assumpcao, Daniel Cheng, Rebecca Xin, C.J. Yeh, Matthew Warner, Hana Guo, Xiangwen Shams-Ansari, Amirhassan Barton, David Sinclair, Neil Loncar, Marko John A. Paulson School of Engineering and Applied Sciences Harvard University CambridgeMA02138 United States State Key Laboratory for Mesoscopic Physics Frontiers Science Center for Nano-optoelectronics School of Physics Peking University Beijing100871 China Department of Materials Science and Engineering National University of Singapore Singapore117575 Singapore Singapore138634 Singapore Department of Electrical and Computing Engineering University of Virginia CharlottesvilleVA22903 United States DRS Daylight Solutions 16465 Via Esprillo San DiegoCA United States Department of Materials Science and Engineering Northwestern University EvanstonIL60208 United States

Electro-optics serves as the crucial bridge between electronics and photonics, unlocking a wide array of applications ranging from communications and computing to sensing and quantum information. Integrated electro-optics approaches in particular enable essential electronic high-speed control for photonics while offering substantial photonic parallelism for electronics. Recent strides in thin-film lithium niobate photonics have ushered revolutionary advancements in electro-optics. This technology not only offers the requisite strong electro-optic coupling but also boasts ultra-low optical loss and high microwave bandwidth. Further, its tight confinement and compatibility with nanofabrication allow for unprecedented reconfigurability and scalability, facilitating the creation of novel and intricate devices and systems that were once deemed nearly impossible in bulk systems. Building upon this platform, the field has witnessed the emergence of various groundbreaking electro-optic devices1-12 surpassing the current state of the art1-6,9-12, and introducing functionalities that were previously non-existent3,7,8. This technological leap forward provides a unique framework to explore various realms of physics as well, including photonic non-Hermitian synthetic dimensions13-15, active topological physics16,17, and quantum electro-optics12,18-20. In this review, we present the fundamental principles of electro-optics, drawing connections between fundamental science and the forefront of technology. We discuss the accomplishments and future prospects of integrated electro-optics, enabled by thin-film lithium niobate platform. Copyright © 2024, The Authors. All rights reserved.

关键词： Thin films

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：