Results 51 to 60 of about 893,299 (282)

Terahertz-wave detector on silicon carbide platform

Applied Physics Express, 2022
We developed a novel terahertz-wave detector fabricated on a SiC platform implementing an InP/InGaAs Fermi-level managed barrier (FMB) diode. The FMB diode epi-layers were transferred on a SiC substrate, and a waveguide coupler and filters were ...
Hiroshi Ito, Norihiko Shibata, T. Nagatsuma, T. Ishibashi   +3 more
semanticscholar   +1 more source

A High-Sensitivity AlGaN/GaN HEMT Terahertz Detector With Integrated Broadband Bow-Tie Antenna

IEEE Transactions on Terahertz Science and Technology, 2019
Many emerging applications in the terahertz (THz) frequency range demand highly sensitive, broadband detectors for room-temperature operation. Field-effect transistors with integrated antennas for THz detection (TeraFETs) have proven to meet these ...
M. Bauer, A. Rämer, S. Chevtchenko, K. Osipov, D. Čibiraitė, S. Pralgauskaitė, K. Ikamas, A. Lisauskas, W. Heinrich, V. Krozer, H. Roskos   +10 more
semanticscholar   +1 more source

Rapid sensing of hidden objects and defects using a single-pixel diffractive terahertz sensor

Nature Communications, 2023
Terahertz waves offer advantages for nondestructive detection of hidden objects/defects in materials, as they can penetrate most optically-opaque materials.
Jingxi Li, Xurong Li, Nezih T. Yardimci, Jingtian Hu, Yuhang Li, Junjie Chen, Yi-Chun Hung, Mona Jarrahi, Aydogan Ozcan   +8 more
doaj   +1 more source

Theory of Antiferromagnet-Based Detector of Terahertz Frequency Signals

Magnetochemistry, 2022
We present a theory of a detector of terahertz-frequency signals based on an antiferromagnetic (AFM) crystal. The conversion of a THz-frequency electromagnetic signal into the DC voltage is realized using the inverse spin Hall effect in an ...
A. Safin, S. Nikitov, A. Kirilyuk, V. Tyberkevych, A. Slavin   +4 more
semanticscholar   +1 more source

An analytical model for terahertz detection in cylindrical surrounding-gate MOSFETs

AIP Advances, 2018
An analytical model for detection of terahertz radiation by plasma wave in cylindrical surrounding-gate (SRG) MOSFETs is presented. In comparison with traditional drain-current models, the rectification response of terahertz signal due to current self ...
Guangjin Ma, Chunlai Li, Xiaojuan Ma, Zhiping Zhou, Jin He   +4 more
doaj   +1 more source

Ultrafast carrier dynamics in terahertz photoconductors and photomixers: beyond short-carrier-lifetime semiconductors

Nanophotonics, 2022
Efficient terahertz generation and detection are a key prerequisite for high performance terahertz systems. Major advancements in realizing efficient terahertz emitters and detectors were enabled through photonics-driven semiconductor devices, thanks to ...
Lu Ping-Keng, Fernandez Olvera Anuar de Jesus, Turan Deniz, Seifert Tom Sebastian, Yardimci Nezih Tolga, Kampfrath Tobias, Preu Sascha, Jarrahi Mona   +7 more
doaj   +1 more source

Development of a Zero-Bias Detector Based on T-Type Structure

IEEE Access
The detector plays a crucial role in terahertz (THz) receiving systems, converting weak high-frequency signals into low-frequency or direct current signals that are easier to process. This paper proposes a zero-bias Schottky diode THz detector based on a
Xiaobo Zhang, Jin Meng, Jingtao Zhou, Baijun Zhang, Zenghui Liu, Zexing Yuan   +5 more
doaj   +1 more source

Preparation of room temperature terahertz detector with lithium tantalate crystal and thin film

AIP Advances, 2014
Research on room temperature terahertz (THz) detector is essential for promoting the application of THz science and technology. Both lithium tantalate crystal (LiTaO3) and lithium tantalate thin film were used to fabricate the THz detector in this paper.
Jun Wang, Jun Gou, Weizhi Li
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

All-Dielectric Meta-lens Designed for Photoconductive Terahertz Antennas

IEEE Photonics Journal, 2017
We present an all-dielectric meta-lens designed to collimate terahertz waves emitted from a terahertz antenna. The meta-lens is not only thinner than a conventional bulk silicon lens, but also promises to eliminate the use of parabolic mirrors in a ...
Qing Yu, Jianqiang Gu, Quanlong Yang, Ying Zhang, Yanfeng Li, Zhen Tian, Chunmei Ouyang, Jiaguang Han, John F. OHara, Weili Zhang   +9 more
doaj   +1 more source