Results 91 to 100 of about 309,670 (287)

Photoluminescent Color Centers on a Mainstream Silicon Photonic Foundry Platform

Advanced Optical Materials, EarlyView.
Silicon photonic chips route and process light efficiently but are inherently inefficient at generating it. Here, bright light‐emitting defects, W‐centers, are written into the silicon layer of finished chips from a mainstream commercial foundry: high‐energy ions are implanted straight through the protective oxide and activated by a 250∘C$^\circ{\rm C}$
Prosper Dellah Allo, A. Aadhi, Amirhossein Mosaddegh Yengejeh, Hazel Bakajsza, Mirabel N. M. Mensah, Marcus Tamura, Bhavin J. Shastri, Alexander N. Tait   +7 more
wiley   +1 more source

Machine learning enabled dual to wideband frequency agile $$\:{\varvec{A}\varvec{l}}_{2}{\varvec{O}}_{3}\:$$ ceramic-based dielectric MIMO antenna for 5G new radio applications

Scientific Reports
This article presents a dual-band to wideband Frequency Agile (FA) rectangular dielectric resonator (DR) based hybrid MIMO antenna for 5G New Radio (NR) application with connected ground. The DR is made of Al2O3 (εr = 9.8) ceramic material.
Jayant Kumar Rai, Ajay Kumar Dwivedi, Vivek Singh, Pinku Ranjan, Anand Sharma, Ashish Pandey   +5 more
doaj   +1 more source

High speed high voltage PIN diode driver

, 1998
The development of a high power four-port PIN diode T/R switch is discussed. The switch makes use of a novel PIN diode driver circuit that achieves high switching speeds while keeping the power dissipation in the driver transistors low.
van Niekerk C., van der Walt P.W.
core  

Cyclodextrin‐Functionalized Light‐Driven Cu2O Micromotors for Simultaneous Capture and Degradation of Bisphenol A

Advanced Robotics Research, EarlyView.
Fuel‐free Cu2O‐based micromotors functionalized with β‐cyclodextrin actively remove bisphenol A from water under visible light. The cyclodextrin shell captures BPA and enhances micromotor motility, leading to faster degradation and higher overall removal than nonfunctionalized Cu2O and Cu2O@Au.
Luisa Natalia Cordoba Urresti, Rebeca Ferrer Campos, Yufen Chen, Katherine Villa   +3 more
wiley   +1 more source

Ferroelectric Devices for In‐Memory and In‐Sensor Computing

Advanced Science, EarlyView.
Inspired by biological systems, in‐memory and in‐sensor computing overcome von Neumann bottlenecks. Ferroelectric devices can mimic synaptic functions and sense stimuli like light or force, therefore are ideal for these paradigms. This review introduces the ferroelectric devices applied for in‐memory and in‐sensor computing, covering their structures ...
Hong Fang, Ronghuan Xie, Qiang Cao, Shishen Yan, Xiaolin Wang, Limei Zheng   +5 more
wiley   +1 more source

Graphene-based integrated radiation heat-dissipation reconfigurable polarization conversion metasurface

Nano Research
In active reconfigurable polarization conversion metasurfaces, the integration of electromagnetic radiation performance and heat dissipation efficiency presents two critical challenges.
Bei Dong, Haoran Zu, Rongguo Song, Zhi Luo, Wei Qian, Jingwei Zhang, Qinglei Du, Daping He   +7 more
doaj   +1 more source

Making Sweat Measurable: Induction, Sampling, and Refreshment in Wearable Biofluid Sensing

Advanced Science, EarlyView.
Wearable sweat sensing relies not only on chemical detection but also on controlled biofluid management. This Review integrates sweat physiology, induction strategies, and microfluidic sampling architectures, demonstrating how flux, transport, and refreshment shape measurement reliability.
Soyoung Shin, Wei Gao
wiley   +1 more source

An Improved PIN Diode Model Design for a Tunable Frequency Selective Absorber

Applied Sciences
An enhanced PIN diode model designed for a tunable frequency absorber is proposed, enabling continuous and adjustable absorption across the X-band frequency range. This new structure consists of four primary components: a frequency selective surface (FSS)
Hanxiang Lin, Xiaoxing Fang
doaj   +1 more source

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

Advanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung, Gwang Ya Kim, Sejin Kim, Hyunjong Seo, Se Gi Lee, Sang Min Won, Dongjoon Rhee, Joohoon Kang   +7 more
wiley   +1 more source

Innovative Autonomous Design of Multi-Band Reconfigurable Antenna Using Genetic Algorithms

IEEE Access
This paper presents a novel approach to designing reconfigurable antenna using genetic algorithms (GAs) and accurate PIN diode modeling. The method integrates TRL calibration for precise diode characterization, equivalent circuit modeling, and a multi ...
Mohammed Cherif Derbal, Mourad Nedil
doaj   +1 more source