Results 11 to 20 of about 3,826 (299)

Single Nanowire Terahertz Detectors

CLEO: 2015, 2015
Photoconductive terahertz detectors based on single GaAs/AlGaAs nanowire were designed, fabricated and incorporated into the pulsed time-domain technique, showing a promise for nanowires in terahertz applications such as near-field terahertz sensors or on-chip terahertz micro-spectrometers.
Peng, Kun, Parkinson, Patrick, Fu, Lan, Gao, Qiang, Jiang, Nian, Guo, Yanan, Wang, Fan, Joyce, Hannah J, Boland, Jessica L., Jagadish, Chennupati, Johnston, Michael B, Tan, Hark Hoe   +11 more
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Terahertz Detectors based on graphene

Journal of Physics: Conference Series, 2013
In this study we present magnetotransport an magnetooptical data obtained in the magnetic field range 0T < B < 7T at detectors patterned in Corbino geometry on epitaxial graphene wafer using a Ge detector. We observed the cyclotron resonance of charge carriers in these wafers by measurement of the transmission of THz wafes through the unpatterned
Gouider, Fathi, Salman, Majdi, Göthlich, Markus, Schmidt, Hennrik, Ahlers, Franz-J., Haug, Rolf J., Nachtwei, Georg   +6 more
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Tunnel field-effect transistors for sensitive terahertz detection

Nature Communications, 2021
Here, a strong nonlinearity of the gate-induced tunnel junction in bilayer graphene is used for efficient terahertz detection. The improved signal-to-noise ratio, as compared to conventional detectors, offers the application of steep-switching ...
I. Gayduchenko, S. G. Xu, G. Alymov, M. Moskotin, I. Tretyakov, T. Taniguchi, K. Watanabe, G. Goltsman, A. K. Geim, G. Fedorov, D. Svintsov, D. A. Bandurin   +11 more
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Single Nanowire Photoconductive Terahertz Detectors [PDF]

Nano Letters, 2014
Spectroscopy and imaging in the terahertz (THz) region of the electromagnetic spectrum has proven to provide important insights in fields as diverse as chemical analysis, materials characterization, security screening, and nondestructive testing. However, compact optoelectronics suited to the most powerful terahertz technique, time-domain spectroscopy,
Peng, Kun, Parkinson, Patrick, Fu, Lan, Gao, Qiang, Jiang, Nian, Guo, Ya-Nan, Wang, Fan, Joyce, Hannah J, Boland, Jessica L, Tan, Hark Hoe, Jagadish, Chennupati, Johnston, Michael B   +11 more
openaire   +4 more sources

Graphene plasmons-enhanced terahertz response assisted by metallic gratings

Nanophotonics, 2022
Terahertz detectors based on two-dimensional Dirac materials offer a new approach for room-temperature terahertz detection with high response and low noise.
Yu Anqi, Yang Zhenyu, Cai Miao, Zhang Huiping, Tian Zhengan, Guo Xuguang, Wang Lanxia, Balakin Alexei V., Shkurinov Alexander P., Zhu YiMing   +9 more
doaj   +1 more source

Advances on terahertz single-pixel imaging

Frontiers in Physics, 2022
Single-pixel imaging is a novel imaging technique that can obtain image information through a single-pixel detector. It can effectively avoid the problem of lack of high-quality area array detectors in the terahertz band, and has attracted the attention ...
Qiao Hu, Qiao Hu, Xudong Wei, Xudong Wei, Yajun Pang, Yajun Pang, Liying Lang, Liying Lang   +7 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
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Terahertz Detectors Using Microelectromechanical System Resonators

Sensors, 2023
The doubly clamped microelectromechanical system (MEMS) beam resonators exhibit extremely high sensitivity to tiny changes in the resonance frequency owing to their high quality (Q-) factors, even at room temperature.
Chao Li, Ya Zhang, Kazuhiko Hirakawa
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Microdisk array based Weyl semimetal nanofilm terahertz detector

Nanophotonics, 2022
High-performance terahertz wave detectors at room temperature are still urgently required for a wide range of applications. The available technologies, however, are plagued by low sensitivity, narrow spectral bandwidth, complicated structure, and high ...
Song Qi, Zhou Zhiwen, Zhu Gangyi, Liang Huawei, Zhang Min, Zhang Bingyuan, Liu Fang, Yan Peiguang   +7 more
doaj   +1 more source

Describing broadband terahertz response of graphene FET detectors by a classical model [PDF]

, 2020
Direct power detectors based on field-effect transistors are becoming widely used for terahertz applications. However, accurate characterization at terahertz frequencies of such detectors is a challenging task. The high-frequency response is dominated by
Jeppson, Kjell,, Jeppson, Kjell, Yang, Xinxin, Yang, Xinxin,, Vorobiev, Andrei,, Stake, Jan, Stake, Jan,, Vorobiev, Andrei   +7 more
core   +1 more source