检索结果-内蒙古大学图书馆

Conference on Lasers and Electro-Optics (CLEO)

作者： Shutao Xu Ahmet Turnali Timothy Lim Michelle Y. Sander Department of Electrical and Computer Engineering and BU Photonics Center Boston University Boston Massachusetts USA Division of Materials Science and Engineering Boston University Brookline Massachusetts USA Department of Biomedical Engineering Boston University Boston Massachusetts USA

We report a high-energy Tm-doped chirped-pulse-amplification fiber laser system seeded by dissipative solitons at 1902 nm. The system provides output pulses with a pulse energy of 120 nJ and a pulse duration of 940 fs.

ISBN: (纸本)9781957171258

关键词： Dissipative solitons Fiber optic amplifiers High numerical aperture optics Laser systems Systems design Thulium doped fiber lasers

来源：评论

学校读者我要写书评

暂无评论

Scalable trapping of single nanosized extracellular vesicles using plasmonics

arXiv

引用

arXiv 2023年

作者： Hong, Chuchuan Ndukaife, Justus C. Department of Electrical and Computer Engineering Vanderbilt University NashvilleTN United States Interdisciplinary Materials Science and Engineering Vanderbilt University NashvilleTN United States Department of Mechanical Engineering Vanderbilt University NashvilleTN United States

Heterogeneous nanoscale particles released by cells known as extracellular vesicles (EVs) are actively investigated for early disease detection1, monitoring2, and advanced therapeutics3. Due to their extremely small size, the stable trapping of nano-sized EVs using diffraction-limited optical tweezers4 has been met with challenges. Plasmon-enhanced optical trapping can confine light to the nanoscale to generate tight trapping potentials. Unfortunately, a long-standing challenge is that plasmonic tweezers have limited throughput and cannot provide rapid delivery and trapping of particles at plasmonic hotspots while precluding the intrinsic plasmon-induced photothermal heating effect at the same time. We report our original geometry-induced electrohydrodynamic tweezers (GET) that generate multiple electrohydrodynamic potentials for the parallelized transport and trapping of single EVs in parallel within seconds while enhancing the imaging of single trapped EVs. We show that the integration of nanoscale plasmonic cavities at the center of each GET trap results in the parallel placement of single EVs near plasmonic cavities enabling instantaneous plasmon-enhanced optical trapping upon laser illumination without any detrimental heating effect for the first time. These non-invasive scalable hybrid nanotweezers open new horizons for high-throughput tether-free plasmon-enhanced single EV trapping and spectroscopy. Other potential areas of impact include nanoplastics characterization, and scalable hybrid integration for quantum photonics. Copyright © 2023, The Authors. All rights reserved.

关键词： Electrohydrodynamics

来源：评论

学校读者我要写书评

暂无评论

Crystallization of the transdimensional electron liquid

arXiv

引用

arXiv 2025年

作者： Bondarev, Igor V. Boltasseva, Alexandra Khurgin, Jacob B. Shalaev, Vladimir M. Department of Mathematics & Physics North Carolina Central University DurhamNC27707 United States Elmore Family School of Electrical & Computer Engineering Purdue Quantum Science & Engineering Institute Birck Nanotechnology Center West LafayetteIN47907 United States School of Materials Engineering Purdue University West LafayetteIN47907 United States Department of Electrical & Computer Engineering Whiting School of Engineering Johns Hopkins University BaltimoreMD21218 United States

By calculating the critical densities, temperatures and phase diagrams, we show that metallic transdimensional materials are unique in that by simply reducing their thickness one can Wigner crystallize their free electrons at room temperature. When it occurs, the electrons get pinned on a two-dimensional periodic triangular lattice to form an electron super-solid (electron solid inside of a crystalline material). Such a solid melts and gets frozen back with raising and lowering the temperature, respectively, and its resistivity behaves opposite to the free electron gas model predictions. © 2025, CC BY.

关键词： Crystalline materials

来源：评论

学校读者我要写书评

暂无评论

Cavity-Enhanced 2D Quantum Emitters Deterministically Integrated with Silicon Nitride Microresonators

Cavity-Enhanced 2D Quantum Emitters Deterministically Integr...

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Kamyar Parto Shaimaa Azzam Nicholas Lewis Sahil Patel Sammy Umezawa Kenji Watanabe Takashi Taniguchi Galan Moody Department of Electrical and Computer Engineering University of California Santa Barbara CA California Nanosystems Institute University of California Santa Barbara CA Research Center for Functional Materials National Institute for Materials Science Tsukuba International Center for Materials Nanoarchitectures National Institute for Materials Science Tsukuba Japan

A new platform for position and polarization aligned 2D single-photon emitter integration within background-free silicon-nitride microring resonator is presented. Emitters achieve a cavity-enhanced coupling efficiency... 详细信息

ISBN: (纸本)9781957171258

关键词： Coupling efficiency Microresonators Polarization Purcell effect Refractive index Silicon nitride

来源：评论

学校读者我要写书评

暂无评论

Efficient and Equivariant Graph Networks for Predicting Quantum Hamiltonian

arXiv

引用

arXiv 2023年

作者： Yu, Haiyang Xu, Zhao Qian, Xiaofeng Qian, Xiaoning Ji, Shuiwang Department of Computer Science & Engineering Texas A&M University TX United States Department of Materials Science & Engineering Texas A&M University TX United States Department of Electrical & Computer Engineering Texas A&M University TX United States Department of Physics & Astronomy Texas A&M University TX United States

We consider the prediction of the Hamiltonian matrix, which finds use in quantum chemistry and condensed matter physics. Efficiency and equivariance are two important, but conflicting factors. In this work, we propose a SE(3)-equivariant network, named QHNet, that achieves efficiency and equivariance. Our key advance lies at the innovative design of QHNet architecture, which not only obeys the underlying symmetries, but also enables the reduction of number of tensor products by 92%. In addition, QHNet prevents the exponential growth of channel dimension when more atom types are involved. We perform experiments on MD17 datasets, including four molecular systems. Experimental results show that our QHNet can achieve comparable performance to the state of the art methods at a significantly faster speed. Besides, our QHNet consumes 50% less memory due to its streamlined architecture. Our code is publicly available as part of the AIRS library (https://***/divelab/AIRS). Copyright © 2023, The Authors. All rights reserved.

关键词： Quantum chemistry

来源：评论

学校读者我要写书评

暂无评论

Active Twistoptics: On-Chip Multidimensional Dynamic Control for Data Hypercube Reconstruction

Active Twistoptics: On-Chip Multidimensional Dynamic Control...

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Haoning Tang Beicheng Lou Fan Du Guangqi Gao Mingjie Zhang Xueqi Ni Amir Yacoby Yuan Cao Shanhui Fan Eric Mazur School of Engineering and Applied Sciences Harvard University Cambridge MA USA Department of Electrical Engineering and Computer Science University of California at Berkeley Berkeley CA USA National Institute for Materials Science Tsukuba Ibaraki Japan Department of Applied Physics Ginzton Laboratory Stanford University Stanford CA USA

Our MEMS-integrated twistoptics device enables precise control of interlayer gaps and twist angles in photonic crystals, achieving high-accuracy, multidimensional light manipulation with significant potential in recon... 详细信息

ISBN: (纸本)9798350369311

关键词： Nanophotonics Electric potential Photonic crystals Lasers and electrooptics Hypercubes System-on-chip Electro-optical waveguides

来源：评论

学校读者我要写书评

暂无评论

Utilization of Artifact and Noise Affected Electrocardiogram for Simultaneous Heart Rate Computation and Motion Type Inference

Utilization of Artifact and Noise Affected Electrocardiogram...

引用

IEEE SENSORS

作者： Jihwan Kim Hyun Bin Kim Dengyang Lu Byeong Woon Lee Wooseok Kim Sang Uk Park Hee Kyu Lee Jaejun Lim Yida Wang Seunghwan Seo Sang Min Won Department of Electrical and Computer Engineering Sungkyunkwan University Suwon South Korea Department of Materials Science and Engineering University of Pennsylvania Philadelphia PA USA Research Laboratory of Electronics Massachusetts Institute of Technology Cambridge MA USA

The specific objective of developing neural interfaces is to analyze the electrophysiological signals associated with neural activities within the body, with the aim of providing early diagnosis for diseases related to the neural system. One example is the electrocardiogram (ECG) that assesses the functionality of the heart, identifying arrhythmias and potentially pinpointing the location of any malfunction. Conventional clinical protocols require cardiac electrical signal measurements to be conducted during a stationary phase, with an emphasis on minimizing noise interference as much as possible. While this holds true in clinical scenarios, such motion artifacts can be valuable sources of information for motion tracking. In this study, we present a methodology where we demonstrate the simultaneous monitoring and computation of both heart rate and motion using a wireless ECG sensing system with a three-electrode configuration.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Towards electrically-Pumped AlGaN UV-A Lasers with Transparent Tunnel Junctions

Towards Electrically-Pumped AlGaN UV-A Lasers with Transpare...

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Arnob Ghosh Agnes M. D. M. Xavier Sheikh Ifatur Rahman Andrew Allerman Siddharth Rajan Shamsul Arafin Department of Electrical and Computer Engineering The Ohio State University Columbus OH USA Sandia National Laboratories Albuquerque New Mexico USA Department of Materials Science and Engineering The Ohio State University Columbus OH USA

Molecular beam epitaxy-grown GaN/AlGaN-based active regions were optimized by varying quantum-well widths to yield increased photoluminescence intensity at UV-A wavelengths. The optimized gain medium was then used in ... 详细信息

ISBN: (纸本)9781957171258

关键词： Atomic force microscopy Laser materials Laser materials processing Lasers Physical vapor deposition Quantum well lasers

来源：评论

学校读者我要写书评

暂无评论

High Quality Factor Microcavity for Van der Waals Semiconductor Polaritons Using a Transferrable Mirror( vol 11 , 2201440 , 2023 )

引用

ADVANCED OPTICAL materials 2023年第23期11卷

作者： Paik, Eunice Y. Zhang, Long Hou, Shaocong Zhao, Haonan Chou, Yu-Hsun Forrest, Stephen R. Deng, Hui Department of Physics University of Michigan Ann Arbor Michigan 48109-2122 USA Department of Physics Xiamen University Xiamen 361000 China School of Electrical Engineering and Automation Wuhan University Wuhan 430000 China Department of Electrical and Computer Engineering University of Michigan Ann Arbor Michigan 48109 USA Department of Photonics National Cheng Kung University Tainan City 70101 Taiwan Departments of Electrical and Computer Engineering Physics and Materials Science and Engineering University of Michigan Ann Arbor Michigan 48109 USA

Semiconductor microcavities with a high quality-factor are an important component for photonics research and technology, especially in the strong coupling regime. While van der Waals semiconductors have emerged as an interesting platform for photonics due to their strong exciton–photon interaction strength and engineering flexibility, incorporating them in photonic devices requires heterogeneous integration and remains a challenge. This study demonstrates a method to assemble high quality factor microcavities for van der Waals materials, using high reflectance top mirrors which, similar to van der Waals materials themselves, can be nondestructively and reliably peeled off the substrate and transferred onto the rest of the device. Microcavities are created with quality factors consistently above 2000 and up to 11000 ± 800; and the strong coupling regime is demonstrated. The method can be generalized to other types of heterogeneously integrated photonic structures and will facilitate research on cavity quantum electrodynamic and photonic systems using van der Waals materials.

关键词： distributed Bragg reflectors exciton–polaritons microcavity transition metal dichalcogenides van der Waals materials

来源：评论

学校读者我要写书评

暂无评论

Real-time Nonlinear Pulse Evolution Dynamics in a Tm-doped Fiber Laser

Real-time Nonlinear Pulse Evolution Dynamics in a Tm-doped F...

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Shutao Xu Junjie Zeng Michelle Y. Sander Department of Electrical and Computer Engineering and BU Photonics Center Boston University Boston Massachusetts USA Division of Materials Science and Engineering Boston University Brookline Massachusetts USA Department of Biomedical Engineering Boston University Boston Massachusetts USA

We investigate the nonlinear pulse evolution dynamics in a Tm-doped fiber laser in real-time with a modified dispersive Fourier transform technique. Coherence degradation and recovery processes are analyzed with spect... 详细信息

ISBN: (纸本)9781957171258

关键词： Coherent states Dissipative solitons Fourier transforms Laser sources Thulium doped fiber lasers Ultrafast lasers

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：