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Low-Gain Avalanche Diode (LGAD) sensors, offering timing resolutions of the order of tens of picoseconds, are being widely adopted in particle physics experiments and related applications. As these applications scale to large numbers of…

Instrumentation and Detectors · Physics 2026-05-27 Kyungmin Lee , Hoyong Jeong , Junho Kim , Seokhyeon Lee , Jaebak Kim , Jae Hyeok Yoo

4H-Silicon Carbide, when considered as a material for the fabrication of Low Gain Avalanche Detectors for particle timing and position measurement, offers potential advantages over Silicon. We discuss an ongoing study of this material aimed…

Instrumentation and Detectors · Physics 2022-03-17 P. Barletta , M. Cerullo , C. Haber , S. E. Holland , J. Muth , B. Sekely

Cryogenic Avalanche Detectors (CRADs) are referred to as a new class of noble-gas detectors operated at cryogenic temperatures with electron avalanching performed directly in the detection medium, the latter being in gaseous, liquid or…

Instrumentation and Detectors · Physics 2015-03-31 A. Buzulutskov

Interferometric gravitational-wave detectors like LIGO need to be able to measure changes in their arm lengths of order $10^{-18}~$m or smaller. This requires very high laser power in order to raise the signal above shot noise. One…

Applied Physics · Physics 2019-12-11 S. Biscans , S. Gras , C. D. Blair , J. Driggers , M. Evans , P. Fritschel , T. Hardwick , G. Mansell

Anomaly detection suffered from the lack of anomalies due to the diversity of abnormalities and the difficulties of obtaining large-scale anomaly data. Semi-supervised anomaly detection methods are often used to solely leverage normal data…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Jian Shi , Ni Zhang

Achieving the quantum noise targets of third-generation detectors will require 10 dB of squeezed-light enhancement as well as megawatt laser power in the interferometer arms - both of which require unprecedented control of the internal…

Instrumentation and Methods for Astrophysics · Physics 2022-05-31 Jonathan W. Richardson , Swadha Pandey , Edita Bytyqi , Tega Edo , Rana X. Adhikari

The data compression technology now is fully developed and widely used in many fields such as communication, multi-media, image information processing and so on. The large physical experiments, especially the ones with Micro-pattern Gas…

Instrumentation and Detectors · Physics 2019-09-04 Zhongtao Shen , Shuwen Wang , Cheng Li , Changqing Feng , Shubin Liu

An ultraviolet (UV) photodetector employing the two-dimensional electron gas (2DEG) formed at the AlGaN/GaN interface as an interdigitated transducer (IDT) is characterized under optical stimulus. The 2DEG-IDT photodetector exhibits a…

We present a fully integrated InGaAs/InP negative feedback avalanche diode (NFAD) based free-running single-photon detector (SPD) designed for accurate lidar applications. A free-piston Stirling cooler is used to cool down the NFAD with a…

Quantum Physics · Physics 2017-12-06 Chao Yu , Mingjia Shangguan , Haiyun Xia , Jun Zhang , Xiankang Dou , Jian-Wei Pan

Large scale datasets created from crowdsourced labels or openly available data have become crucial to provide training data for large scale learning algorithms. While these datasets are easier to acquire, the data are frequently noisy and…

Image and Video Processing · Electrical Eng. & Systems 2022-01-03 Rodrigo Caye Daudt , Bertrand Le Saux , Alexandre Boulch , Yann Gousseau

Short-term reliability and robustness of 110 nm AlN/GaN HEMTs has been evaluated by means of off-state, semi-on state and on-state step stress tests on devices having different gate-drain distance, LGD. While breakdown voltages and critical…

We investigate strategies to suppress phase separation and reduce threading dislocation densities (TDD) in AlGaInAs compositionally graded buffers (CGBs) that span the lattice constant range from GaAs to InP. Combining results from high…

We characterized the front-end electronics used to process high-frequency signals from low-gain avalanche diodes (LGADs) at the Fermilab Test Beam Facility. LGADs are silicon detectors employed for charged particle tracking, offering…

A comprehensive study, supported by systematic measurements and numerical computations, of the intrinsic limits of multi-GEM detectors when exposed to very high particle fluxes or operated at very large gains is presented. The observed…

This paper presents and evaluates a novel method for generating power losses on transistors avoiding high currents. These could heat up the circuit tracks, affecting the accurate thermal modeling of the system. The proposed procedure is…

Systems and Control · Electrical Eng. & Systems 2023-09-05 Jose Miguel Sanz-Alcaine , Francisco Jose Perez-Cebolla , Carlos Bernal-Ruiz , Asier Arruti , Iosu Aizpuru , Juan Sanchez

InGaAs avalanche photodiodes (APDs) are convenient for single photon detection in the near-infrared (NIR) including the fibre communication bands (1.31/1.55 $\mu$m). However, to suppress afterpulse noise due to trapped avalanche charge,…

Quantum Physics · Physics 2008-05-02 Z. L. Yuan , B. E. Kardynal , A. W. Sharpe , A. J. Shields

The measurement of charged particle spectra in heavy ion collisions is a way to study properties of hot and dense matter created in these interactions. The centrality dependence of the spectral shape is an important tool to understand the…

High Energy Physics - Experiment · Physics 2015-05-22 Petr Balek

In a context of 3D mapping, it is very important to get accurate measurements from sensors. In particular, Light Detection And Ranging (LIDAR) measurements are typically treated as a zero-mean Gaussian distribution. We show that this…

Robotics · Computer Science 2019-08-29 Johann Laconte , Simon-Pierre Deschênes , Mathieu Labussière , François Pomerleau

We propose a novel, Gaussian signaling mechanism for low probability of detection (LPD) communication systems with either single or multiple antennas. The new scheme is designed to allow the noncoherent detection of Gaussian-distributed…

Signal Processing · Electrical Eng. & Systems 2023-01-10 Yuma Katsuki , Giuseppe Thadeu Freitas de Abreu , Koji Ishibashi , Naoki Ishikawa

This paper presents a generative adversarial network (GAN) based approach for radar image enhancement. Although radar sensors remain robust for operations under adverse weather conditions, their application in autonomous vehicles (AVs) is…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Thakshila Thilakanayake , Oscar De Silva , Thumeera R. Wanasinghe , George K. Mann , Awantha Jayasiri