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To cope with the High Luminosity LHC harsh conditions, the ATLAS inner tracker has to be upgraded to meet requirements in terms of radiation hardness, pile up and geometrical acceptance. The active edge technology allows to reduce the…

Owing to the unique advantages of low cost and controllability, reconfigurable intelligent surface (RIS) is a promising candidate to address the blockage issue in millimeter wave (mmWave) communication systems, consequently has captured…

信息论 · 计算机科学 2022-02-24 Yuqian Zhu , Zhu Bo , Ming Li , Yang Liu , Qian Liu , Zheng Chang , Yulin Hu

We introduce a deep-recessed gate architecture in $\beta$-Ga$_2$O$_3$ delta-doped field effect transistors for improvement in DC-RF dispersion and breakdown properties. The device design incorporates an unintentionally doped…

Three-dimensional (3D) etching of materials by plasmas is an ultimate challenge in microstructuring applications. A method is proposed to reach a controllable 3D structure by using masks in front of the surface in a plasma etch reactor in…

等离子体物理 · 物理学 2023-11-16 E. Jüngling , S. Wilczek , T. Mussenbrock , M. Böke , A. von Keudell

A novel dual-band reconfigurable intelligent surface (DBI-RIS) design that combines the functionalities of millimeter-wave (mmWave) and sub-6 GHz bands within a single aperture is proposed. This design aims to bridge the gap between current…

信号处理 · 电气工程与系统科学 2024-06-06 Junhui Rao , Yujie Zhang , Shiwen Tang , Zan Li , Zhaoyang Ming , Jichen Zhang , Chi Yuk Chiu , Ross Murch

Laser drilling becomes of increasing importance when hole diameter is in the range of 10 to 50 mum, for which conventional alternative approaches are becoming difficult and cost inefficient. Furthermore, it is viewed as the technique of…

化学物理 · 物理学 2009-11-10 Sylvain Lazare , Vladimir Tokarev

Coherent diffractive imaging (CDI), using both X-rays and electrons, has made extremely rapid progress over the past two decades. The associated reconstruction algorithms are typically iterative, and seeded with a crude first estimate. A…

图像与视频处理 · 电气工程与系统科学 2019-06-25 Konstantin M. Pavlov , Kaye S. Morgan , Vasily I. Punegov , David M. Paganin

Deep Ultraviolet (DUV) Photolithography is currently used to fabricate mass-scale integrated circuits (ICs). Its high throughput and resolution could benefit large-scale RF MEMS production for the telecommunication market. We present a…

系统与控制 · 电气工程与系统科学 2024-07-23 Marco Liffredo , Federico Peretti , Nan Xu , Silvan Stettler , Luis Guillermo Villanueva

Atomically thin semiconductor heterostructures provide a two-dimensional (2D) device platform for creating high densities of cold, controllable excitons. Interlayer excitons (IEs), bound electrons and holes localized to separate 2D quantum…

The effect of the thickness of ion exchange membranes has been investigated for electrodialysis (ED) and reverse electrodialysis (RED), both experimentally and through theoretical modeling. By developing a two-dimensional model based on…

化学物理 · 物理学 2020-03-18 M. Tedesco , H. V. M. Hamelers , P. M. Biesheuvel

Cone Beam CT plays an important role in many medical fields nowadays, but the potential of this imaging modality is hampered by lower image quality compared to the conventional CT. A lot of recent research has been directed towards…

医学物理 · 物理学 2023-11-01 Nikita Moriakov , Jan-Jakob Sonke , Jonas Teuwen

Gas Electron Multiplier (GEM) detectors are crucial for enabling high-resolution X-ray polarisation of astrophysical sources when coupled to custom pixel readout ASIC in Gas Pixel Detectors (GPD), as in the Imaging X-ray Polarimetry…

仪器与探测器 · 物理学 2024-02-14 A. Lega , D. Novel , T. Facchinelli , C. Sgro' , L. Baldini , M. Minuti , M. Boscardin , G. Pepponi , R. Iuppa , R. Hall-Wilton , L. Latronico

Electrical impedance tomography (EIT) is a non-invasive functional imaging technology. In order to enhance the quality of lung EIT images, novel algorithms, namely LSTM-LSTM, LSTM-BiLSTM, BiLSTM-LSTM, and BiLSTM-BiLSTM, leveraging LSTM or…

生物物理 · 物理学 2025-04-22 Zhenzhong Song , Jianping Li , Jun Zhang , Hanyun Wen , Suqin Zhang , Wei Jiang , Xingxing Zhou

Schlieren imaging is a powerful, non-intrusive method widely used to visualize refractive index gradients in fluid dynamics and heat transfer studies, essential in fields like aerospace engineering, combustion analysis, and supersonic flow…

光学 · 物理学 2025-04-09 Shubham Saxena , Xu Wang

Implementing machine learning algorithms on Internet of things (IoT) devices has become essential for emerging applications, such as autonomous driving, environment monitoring. But the limitations of computation capability and energy…

信息论 · 计算机科学 2020-05-26 Xiufeng Huang , Sheng Zhou

We have produced thick-foil and fine-pitch gas electron multipliers (GEMs) using a laser etching technique. To improve production yield we have employed a new material, Liquid Crystal Polymer, instead of polyimide as an insulator layer. The…

Nanoscale topological polar textures promise new functionalities for ferroelectric memories and logic, yet their three-dimensional structure and mesoscale organization remain experimentally inaccessible. Here we introduce depth-resolved…

This study presents an optimized hybrid design integrating a distributed Bragg reflector (DBR) and a TiO2 nanocylinder metasurface to enhance light extraction efficiency (LEE) and beam directionality(narrow divergence angle) in…

光学 · 物理学 2025-05-30 Hanbo Xu , Xinyang Liu , Lei Wang

This work theoretically investigates wide-spectrum and high-resolution diffraction optical elements (DOE) that are made of stacks of low-resolution binary phase gratings, whereby the two-dimensional grids in different grating layers are…

光学 · 物理学 2021-06-08 I-Lin Ho , Wang-Yang Li

Controlled and precise fabrication of structures with heights in the range of single digit nanometres is one of the challenges for diffraction gratings operating near-normal incidence in the extreme ultraviolet (EUV) and soft X-ray range.…

应用物理 · 物理学 2026-01-09 Johannes Kaufmann , Thomas Siefke , Uwe Zeitner