Results 111 to 120 of about 777,156 (336)

Low-Frequency Noise Characteristics of GaN Vertical PIN Diodes -- Effects of Current and Temperature

, 2021
Subhajit Ghosh, Kai Fu, Geethal Amila Gamage, Sergey Rumyantsev, Yuji Zhao, Alexander A. Balandin   +5 more
openalex   +1 more source

Smart Optogenetics for Real‐Time Automated Control of Cardiac Electrical Activity

Advanced Science, EarlyView.
We are able to stop dangerous heart‐rhythm spirals before they fully form. Within about 100 ms, it pinpoints the spiral's tiny central tip (≈0.9 mm) using light‐based sensing and machine learning, then shines targeted light to shut it down. This fast, precise, closed‐loop approach detects, targets, and terminates arrhythmias in real time.
Shanliang Deng, Niels Harlaar, Juan Zhang, Sven O. Dekker, Nina N. Kudryashova, Huiling Zhou, Cindy I. Bart, TianYi Jin, Georgy Derevyanko, Willem van Driel, Alexander V. Panfilov, René H. Poelma, Antoine A. F. de Vries, GuoQi Zhang, Tim De Coster, Daniël A. Pijnappels   +15 more
wiley   +1 more source

Avalanche noise in submicrometre pin diodes

Electronics Letters, 1997
It is shown that recent measurements of noise suppression in thin GaAs pin diodes by Hu et al. (1996) can be explained as a dead space phenomenon and are consistent with the /spl alpha///spl beta/ ratio approaching unity at high electric fields.
openaire   +1 more source

Toward Next‐Generation High‐Speed Communication and Imaging: Solution‐Processed Sb2(S,Se)3/CdS Heterojunction for Ultrafast Self‐Powered Photodetector

Advanced Science, EarlyView.
A high‐quality solution‐processed Sb2(S,Se)3/CdS heterojunction is designed to overcome the intrinsic limitations of conventional photodetectors. The fabricated device achieves an excellent self‐powered performance, including a high responsivity of 0.6 A W−1, an ultrahigh specific detectivity of 7.68 × 1012 Jones, and a wide 3db bandwidth of 175 kHz ...
Xuhua Xiao, Yichao Wang, Jingxuan Bian, Hailong Wang, Yongqiang Wang, Jinpeng Xu, Junwei Chen   +6 more
wiley   +1 more source

Simple circuit model of SiC pin diode composed by using experimental electrical characteristics

, 2005
Katsunori Asano, Tsuyoshi Funaki, Yoshitaka Sugawara, Takashi Hikihara   +3 more
openalex   +2 more sources

Localized Lifetime Control of 10 kV 4H-SiC PiN Diodes by MeV Proton Implantation [PDF]

, 2022
Zimo Yuan, Keijo Jacobs, Mietek Bakowski, Per Ranstad, Adolf Schöner, Sergey A. Reshanov, Wlodek Kaplan, Hans Peter Nee, Anders Hallén   +8 more
openalex   +1 more source

Dorsal Raphe VIP Neurons Are Critical for Survival‐Oriented Vigilance

Advanced Science, EarlyView.
DRNVIP neurons in mice and primates are strategically positioned to influence the central extended amygdala via feedback loops. They regulate the excitability of PKC‐δ neurons in the ovBNST and CeA through glutamate release. Their ablation heightens activity in these regions, disrupts active‐phase sleep architecture, enhances risk assessment behaviors ...
Adriane Guillaumin, Emma Perrot, Thibault Dhellemmes, Laura Boi, Daniel De Castro Medeiros, Christelle Glangetas, Sylvie Dumas, Sandra Dovero, Nathalie Biendon, Elodie Ladeveze, Maëlle Hardel, Marc Landry, Erwan Bezard, Jérôme Baufreton, Gilberto Fisone, François Georges   +15 more
wiley   +1 more source

High‐Order Nonlinear Photonic Crystal with Ordered Structures for Giant Enhancement of Frequency Tripling

Advanced Science, EarlyView.
A meta‐YAG crystal with artificially order/disorder structures was fabricated to realize the efficient third‐harmonic generation at 343 nm with a conversion efficiency of 4.5×10−3, surpassing six orders of magnitude compared to bulk YAG crystal. Moreover, a wide spectral tunability from 331 to 356 nm was also achieved in the meta‐YAG, indicating its ...
Xiaotian Guo, Qiaoling Han, Fei Liang, Bin Zhang, Dazhi Lu, Haohai Yu, Huaijin Zhang   +6 more
wiley   +1 more source

Hierarchical Reconfigurable Metasurface Based on Scenario‐Guided Functional Modules and Programmable Core

Advanced Science, EarlyView.
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu, Jiaqi Han, Zhe Zheng, Qiang Feng, Dexiao Xia, Xiangjin Ma, Yajie Mu, Guoliang Luo, Rui Li, Haixia Liu, Hao Xue, Long Li   +11 more
wiley   +1 more source

A self-driven perovskite photodetector array for imaging application by suppressing optoelectrical crosstalk

APL Photonics
With the advancement of photodetector technology, applying perovskite photodetectors in imaging sensors has become a pursued goal in the field of optoelectronics.
Pengfei Kong, Huishan Han, Guanxia Dai, Yanhong Huang, Wei Zhang, Weixi Kong, Haodi Yang, Zixuan Li, Beiyun Liu, Feihong Chu   +9 more
doaj   +1 more source