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11th IEEE International Conference on Communication, Networks and Satellite, COMNETSAT 2022

作者： Rando Setiawan, Noor Akhmad Permanasari, Adhistya Erna Rulaningtyas, Riries Suksmono, Andriyan Bayu Sitanggang, Imas Sukaesih Universitas Gadjah Mada Dept. of Electrical and Information Engineering Yogyakarta Indonesia Biomedical Engineering Program Dept. of Physics Universitas Airlangga Surabaya Indonesia Institut Teknologi Bandung School of Electrical Engineering and Informatics Bandung Indonesia Ipb University Department of Computer Science Bogor Indonesia

ISBN: (纸本)9781665460309

Cervical cancer is one of the deadliest diseases in women. One of the cervical cancer screening methods is pap smear method. However, using a pap smear method to detect cervical cancer takes a long time for a pathologist to diagnose. Hence, a rapid development of medical computerization for early detection to get the results quickly is needed. This paper proposes synthetic data augmentation by using Deep Convolutional Generative Adversarial Network (DCGAN) to increase number of pap smear samples in dataset. Gray Level Co-occurrence Matrix (GLCM) is employed to extract features from dataset. Classification of 3 classes which are Adenocarcinoma, High-Grade Squamous Intraepithelial Lesion (HSIL), and Squamous Cell Carcinoma (SCC) is conducted using Extreme Learning Machine (ELM). The result shows that the addition of synthetic data improves the performance of ELM with the accuracy of 90%. This accuracy is better than the accuracy of ELM using only the original dataset which is 85%. © 2022 IEEE.

关键词： Generative adversarial networks

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Microresonator-based Low Noise Microwave Generation via Optical Frequency Division

Microresonator-based Low Noise Microwave Generation via Opti...

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Frontiers in Optics + Laser Science 2023, FiO, LS 203: Part of Frontiers in Optics + Laser Science 2023

作者： Groman, William Kudelin, Igor Ji, Qing-Xin Guo, Joel Lee, Dahyeon Kelleher, Megan Nakamura, Takuma McLemore, Charles A. Jin, Warren Wu, Lue Zhang, Wei Campbell, Joe Matsko, Andrey Iltchenko, Vladimir Bowers, John Vahala, Kerry Quinlan, Frank Diddams, Scott A. Department of Physics University of Colorado BoulderCO United States Time and Frequency Division National Institute of Standards and Technology BoulderCO United States T.J. Watson Laboratory of Applied Physics California Institute of Technology PasadenaCA United States Department of Electrical and Computer Engineering University of California Santa BarbaraCA United States Jet Propulsion Laboratory California Institute of Technology PasadenaCA United States University of Virginia CharlottesvilleVA United States Department of Electrical Computer and Energy Engineering University of Colorado BoulderCO United States

Using photonic chip components and two-point optical frequency division, we generate a 20 GHz microwave signal with phase noise of −135 dBc/Hz at 10 kHz offset, decreasing to −139 dBc/Hz at 40 kHz offset. © Optic... 详细信息

ISBN: (纸本)9781957171296

关键词： Distributed feedback lasers Frequency combs Laser modes Laser systems Optical components Phase noise

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Testing External Polymer Insulation Materials for Resistance to electrical Tracing and Degradation Using the Inclined Plane Method 6

Testing External Polymer Insulation Materials for Resistance...

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6th International Conference on Contemporary Computing and Informatics, IC3I 2023

作者： Gupta, Ankur Kumar Padalia, Diwakar Gangwar, Arun Sharma, Sandeep Kamble, Sachin K Bhoite, Sonali Prashant School of Computer Science and Applications IIMT University Meerut India School of Basic& Applied Sciences Department of Physics K. R. Mangalam University Gurugram India Invertis University Department of Electrical Engineering Bareilly India School of Electronic and Electrical Engineering Dev Bhoomi Uttarakhand University Uttarakhand India Terna Engineering College Design Dept Navi Mumbai India Vishwakarma Institute of Information Technology Pune India

ISBN: (纸本)9798350304480

An important step in creating outdoor insulators is to assess the polymeric housing materials'resistance to weathering and electrical tracking. The terms 'erosion'and 'tracking'refer to the weight loss of the housing material and the production of a surface carbonaceous trail, respectively. With the help of the common tracking and erosion tests, composites can only be ranked relative to one another in terms of their tracking and erosion resistance, which makes it impossible to quantify these properties in absolute terms. Failure due to the track was a major issue during the early stages of the usage of organic insulating materials. The introduction of tracking-resistant composites with significant inorganic filler content has increased the importance of erosion. © 2023 IEEE.

关键词： DC predisposed exam are some of the terms that may be used erosion Inorganic fillers monitoring parched curving polymer insulator predisposed testing silicone rubber

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Thermal metasurface with tunable narrowband absorption from a hybrid graphene/silicon photonic crystal resonance

Thermal metasurface with tunable narrowband absorption from ...

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作者： Nagpal, Arun Zhou, Ming Ilic, Ognjen Yu, Zongfu Atwater, Harry A. Thomas J. Watson Laboratory of Applied Physics California Institute of Technology 1200 E. California Avenue PasadenaCA91125 United States Department of Electrical Engineering Stanford University 450 Serra Mall StanfordCA94305 United States Department of Mechanical Engineering University of Minnesota 111 Church Street SE MinneapolisMN55455 United States Department of Electrical and Computer Engineering University of Wisconsin 1415 Engineering Drive MadisonWI53706 United States

We report the design of a tunable, narrowband, thermal metasurface that employs a hybrid resonance generated by coupling a tunable permittivity graphene ribbon to a silicon photonic crystal. The gated graphene ribbon array, proximitized to a high quality factor Si photonic crystal supporting a guided mode resonance, exhibits tunable narrowband absorbance lineshapes (Q > 10,000). Actively tuned Fermi level modulation in graphene with applied gate voltage between high absorptivity and low absorptivity states gives rise to absorbance on/off ratios exceeding 60. We employ coupled-mode theory as a computationally efficient approach to elements of the metasurface design, demonstrating an orders of magnitude speedup over typical finite element computational methods. © 2023 Optica Publishing Group.

关键词： Absorbance

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Longitudinal, Multimodal Tracking Reveals Lasting Neurovascular Impact of Individual Microinfarcts

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Advanced Science 2025年第0期12卷 e2417003页

作者： Jin, Yifu He, Fei Rathore, Haad Sun, Yingchu Zhang, Jia-ao Li, Xinyu Yin, Rongkang Zhu, Hanlin Xie, Chong Luan, Lan Department of Electrical and Computer Engineering Rice University HoustonTX77005 United States Neuroengineering Initiative Rice University HoustonTX77005 United States Applied Physics Program Rice University HoustonTX77005 United States Department of Bioengineering Rice University HoustonTX77005 United States

Microinfarcts, the "invisible lesions", are prevalent in aged and injured brains and associated with cognitive impairments, yet their neurophysiological impact remains largely unknown. Using a multimodal chronic neural platform that combines functional microvasculature imaging with spatially resolved neural recording, the neurovascular effect of a single microinfarct is investigated. Unlike larger strokes, microinfarcts induced only temporary suppression of neural activity with minimal cell death, with recovery paralleling vasculature remodeling at the infarct core. Neural activity is more severely suppressed at the shallower cortical layer despite milder vascular damage compared to deeper layers, and the excitability of fast-spiking interneurons attenuation is accompanied by heightened bursting of regular spiking neurons. Spike phase locking at the low-gamma band is disrupted, indicating a lasting impairment of long-range assembly communication. These results highlight the subtle yet significant neurovascular disruptions of a single microinfarct. © 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH.

关键词： Flexible electronics

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Universal and Ultrafast Quantum Computation Based on Free-Electron-Polariton Blockade

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PRX Quantum 2024年第1期5卷 010339-010339页

作者： Aviv Karnieli Shai Tsesses Renwen Yu Nicholas Rivera Ady Arie Ido Kaminer Shanhui Fan Department of Applied Physics Stanford University Stanford California 94305 USA Department of Electrical Engineering Stanford University Stanford California 94305 USA Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Ramat Aviv 69978 Tel Aviv Israel Andrew and Erna Viterbi department of Electrical and Computer Engineering Technion – Israel Institute of Technology Haifa 32000 Israel Department of Physics and Research Laboratory of Electronics Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA Department of Physics Harvard University Cambridge Massachusetts 02138 USA School of Electrical Engineering Fleischman Faculty of Engineering Tel Aviv University 69978 Tel Aviv Israel

Cavity QED, wherein a quantum emitter is coupled to electromagnetic cavity modes, is a powerful platform for implementing quantum sensors, memories, and networks. However, due to the fundamental trade-off between gate fidelity and execution time, as well as limited scalability, the use of cavity QED for quantum computation was overtaken by other architectures. Here, we introduce a new element into cavity QED—a free charged particle, acting as a flying qubit. Using free electrons as a specific example, we demonstrate that our approach enables ultrafast, deterministic, and universal discrete-variable quantum computation in a cavity-QED-based architecture, with potentially improved scalability. Our proposal hinges on a novel excitation blockade mechanism in a resonant interaction between a free-electron and a cavity polariton. This nonlinear interaction is faster by several orders of magnitude with respect to current photon-based cavity-QED gates, enjoys wide tunability and can demonstrate fidelities close to unity. Furthermore, our scheme is ubiquitous to any cavity nonlinearity, either due to light-matter coupling as in the Jaynes-Cummings model or due to photon-photon interactions as in a Kerr-type many-body system. In addition to promising advancements in cavity-QED quantum computation, our approach paves the way towards ultrafast and deterministic generation of highly entangled photonic graph states and is applicable to other quantum technologies involving cavity QED.

关键词： Atoms, ions, & molecules in cavities Cavity quantum electrodynamics Electron beams & optics Hybrid quantum systems Quantum computation Quantum description of light-matter interaction Quantum gates Quantum optics

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The Photoinjector Laser System at LCLS-II

The Photoinjector Laser System at LCLS-II

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2024 Advanced Solid State Lasers, ASSL 2024

作者： Zhang, Hao Gilevich, Sasha Miahnahri, Alan Alverson, Shawn Brachmann, Axel Duris, Joseph Franz, Paris Fry, Alan Hirschman, Jack Larsen, Kirk Lemons, Randy Li, Siqi Lu, Brittany Marinelli, Agostino Martinez, Mikael May, Justin Milshtein, Erel Murari, Krishna Neveu, Nicole Robinson, Joseph Schmerge, John Sun, Linshan Vecchione, Theodore Xu, Chengcheng Zhou, Feng Carbajo, Sergio SLAC National Accelerator Laboratory Stanford University Menlo ParkCA94025 United States Department of Electrical and Computer Engineering University of California Los Angeles Los AngelesCA90095 United States Department of Applied Physics Stanford University Stanford University CA94305 United States Physics and Astronomy Department University of California Los Angeles Los AngelesCA90095 United States California NanoSystems Institute Los AngelesCA90095 United States

We present a thorough description of the LCLS-II photoinjector laser system, an instrument underpinning ultrafast X-ray *** presentation will highlight key components and advancements in generating high-quality, high-energy, ultrashort X-ray pulses in X-ray Free Electron Lasers. © Optica Publishing Group 2024, © 2024 The Author(s)

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Simultaneous Optimization of Multiple Hidden Fluorescent Targets with Wavefront Shaping

Simultaneous Optimization of Multiple Hidden Fluorescent Tar...

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Conference on Lasers and Electro-Optics (CLEO)

作者： Nazifa Rumman Tianhong Wang Pascal Bassène Moussa N’Gom Electrical Computer and Systems Engineering Department Rensselaer Polytechnic Institute Troy NY USA Department of Physics Applied Physics and Astronomy Rensselaer Polytechnic Institute Troy NY USA

We, for the first time, combine wavefront shaping together with thresholding based image segmentation and entropy of image to locate, optimize, and track signals from multiple targets hidden behind scattering media.

ISBN: (纸本)9781957171258

关键词： Image metrics Image processing Image quality Medical imaging Scattering media Segmentation

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Vortex Beams on Incoherent Background

Vortex Beams on Incoherent Background

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2023 Photonics North, PN 2023

作者： Xu, Zhiheng Hajati, Morteza Cai, Yangjian Popov, Sergei Liang, Chunhao Ponomarenko, Sergey A. Shandong Normal University Shandong Provincial Engineering and Technical Center of Light Manipulation Shandong Provincial Key Laboratory of Optics and Photonic Devices School of Physics and Electronics Jinan250014 China Dalhousie University Department of Electrical and Computer Engineering HalifaxNSB3J 2X4 Canada Kth Royal Institute of Technology Department of Applied Physics Stockholm106 91 Sweden

We introduce a novel class of structured random beams carrying orbital angular momentum on incoherent background. We confirm that such beams maintain their vortex structure in free space and manifest robust behavior a... 详细信息

ISBN: (纸本)9798350326734

关键词： Optical communication

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Linear FM Pulse Radar Simulation for Through-Wall Target Detection at 2.4 GHz

Linear FM Pulse Radar Simulation for Through-Wall Target Det...

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2025 IEEE SoutheastCon, SoutheastCon 2025

作者： Reyes, Zachary Guzman, Jalexis E. Vanga Lim, Sungkyun Georgia Southern University Department of Electrical and Computer Engineering StatesboroGA United States Jhu Applied Physics Laboratory Air and Missle Defense Sector LaurelMD United States

ISBN: (纸本)9798331504847

Radars centered in the S-band face challenges in through-wall target detection applications due to high attenuation through lossy dielectrics. This paper discusses applications in target detection, angle-of-arrival (AOA), and range estimation utilizing a proposed pulse linear frequency modulated (LFM) radar centered at 2.4 GHz with a bandwidth of 200 MHz and theoretical maximum range of 300 m. This paper simulates through-wall signal strength at the end of a room at various distances, and target detection of one human target through a lossy 15 cm concrete wall. © 2025 IEEE.

关键词： Frequency shift keying

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