Results 21 to 30 of about 582 (118)

A Highly-Integrated Reconfigurable Ka-Band Receiver Supporting Active and Passive Detections in a 90-nm CMOS Technology

IEEE Access, 2021
A highly-integrated reconfigurable Ka-band receiver in a 90-nm CMOS technology is proposed for the applications of satellite wireless communications, remote sensing of atmospheric conditions, and detection of space debris.
Chun-Hsing Li, Ke-Deng Huang, Te-Yen Chiu   +2 more
doaj   +1 more source

Noise Equivalent Power Optimization of Graphene- Superconductor Optical Sensors in the Current Bias Mode [PDF]

Journal of Optoelectronical Nanostructures, 2018
In this paper, the noise equivalent power (NEP) of an optical sensor based ongraphene-superconductor junctions in the constant current mode of operation has beencalculated.
Ali Moftakharzadeh, Behnaz Afkhami Aghda, Mehdi Hosseini   +2 more
doaj  

High‐Performance Photodetector based on a 3D Dirac Semimetal Cd3As2/Tungsten Disulfide (WS2) van der Waals Heterojunction

Advanced Photonics Research, 2021
Recently, heterojunction photodetectors have attracted significant interest due to the multiple degrees of freedom reorganization, integrating advantages of different typed materials. Herein, a high‐performance photodetector based on a 3D Dirac semimetal
Xingchao Zhang, Rui Pan, Yunkun Yang, Qi Han, Xianchao Liu, Chaoyi Zhang, Hongxi Zhou, Jiayue Han, Jun Gou, Jun Wang   +9 more
doaj   +1 more source

A Low-Noise Direct Incremental A/D Converter for FET-Based THz Imaging Detectors

Sensors, 2018
This paper presents the design, implementation and characterization results of a pixel-level readout chain integrated with a FET-based terahertz (THz) detector for imaging applications. The readout chain is fabricated in a standard 150-nm CMOS technology
Moustafa Khatib, Matteo Perenzoni
doaj   +1 more source

Ultrasensitive and Self‐Powered Terahertz Detection Driven by Nodal‐Line Dirac Fermions and Van der Waals Architecture

Advanced Science, 2021
Terahertz detection has been highly sought to open a range of cutting‐edge applications in biomedical, high‐speed communications, astronomy, security screening, and military surveillance.
Libo Zhang, Zhuo Dong, Lin Wang, Yibin Hu, Cheng Guo, Lei Guo, Yulu Chen, Li Han, Kaixuan Zhang, Shijian Tian, Chenyu Yao, Zhiqingzi Chen, Miao Cai, Mengjie Jiang, Huaizhong Xing, Xianbin Yu, Xiaoshuang Chen, Kai Zhang, Wei Lu   +18 more
doaj   +1 more source

New approach to ECE measurements based on Hilbert-transform spectral analysis

EPJ Web of Conferences, 2015
Spectroscopy of Electron Cyclotron Emission (ECE) has been established as adequate diagnostic technique for fusion research machines. Among various instruments for ECE diagnostics, only Fourier-transform spectrometers with Martin-Puplett interferometers ...
Pandya Hitesh Kumar B., Divin Yuriy
doaj   +1 more source

Room–Temperature Terahertz Detector Based on Monolayer Graphene Integrated with an Asymmetric Bowtie Antenna

Photonics, 2023
Terahertz (THz) technology has great potential for applications in various fields, such as security imaging detection, optical communication, environmental quality monitoring, and life sciences.
Zicheng Guo, Chaojun Ma, Hai Ou, Ximiao Wang, Shaojing Liu, Huanjun Chen, Shaoyong Zheng, Shaozhi Deng   +7 more
doaj   +1 more source

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

Carbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li, Wei Qu, Deepak Kumar, Naini Jain, Nur Wardina Syahirah binti Mohamad Fadil, Nur Najiha binti Ahmad Rasid, Emannuel Kymakis, Maria Vasilopoulou, Chunxiong Bao, Feng Gao, Peng Gao, Sanjeev Kumar Sharma, Mohammad Khaja Nazeeruddin, Abd. Rashid bin Mohd Yusoff, Haotong Wei   +14 more
wiley   +1 more source

Ge-Core/a-Si-Shell Nanowire-Based Field-Effect Transistor for Sensitive Terahertz Detection

Photonics, 2018
Although terahertz technology has demonstrated strong potential for various applications, detectors operating in the terahertz region are yet to be fully established.
Xiangying Deng, Marolop Simanullang, Yukio Kawano   +2 more
doaj   +1 more source

Low-noise AlGaAsSb avalanche photodiodes for 1550 nm light detection [PDF]

, 2023
Avalanche photodiodes (APD) can improve the signal to noise ratio in applications such as LIDAR, range finding and optical time domain reflectometry. However, APDs operating at eye-safe wavelengths around 1550 nm currently limit the sensitivity because ...
White, B.S., Collins, X., Cao, Y., Sheridan, B.S., Ng, J.S., Blain, T., Price, D.M., Tan, C.H.   +7 more
core   +1 more source