Results 11 to 20 of about 275,542 (299)

Optical Pump–Terahertz Probe Study of HR GaAs:Cr and SI GaAs:EL2 Structures with Long Charge Carrier Lifetimes

Photonics, 2021
The time dynamics of nonequilibrium charge carrier relaxation processes in SI GaAs:EL2 (semi-insulating gallium arsenide compensated with EL2 centers) and HR GaAs:Cr (high-resistive gallium arsenide compensated with chromium) were studied by the optical ...
Irina A. Kolesnikova, Daniil A. Kobtsev, Ruslan A. Redkin, Vladimir I. Voevodin, Anton V. Tyazhev, Oleg P. Tolbanov, Yury S. Sarkisov, Sergey Yu. Sarkisov, Victor V. Atuchin   +8 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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Tamm-cavity terahertz detector

Nature Communications, 2023
Abstract Efficiently fabricating a cavity that can achieve strong interactions between terahertz waves and matter would allow researchers to exploit the intrinsic properties due to the long wavelength in the terahertz waveband.
Xuecou Tu, Yichen Zhang, Shuyu Zhou, Wenjing Tang, Xu Yan, Yunjie Rui, Wohu Wang, Bingnan Yan, Chen Zhang, Ziyao Ye, Hongkai Shi, Runfeng Su, Chao Wan, Daxing Dong, Ruiying Xu, Qing-Yuan Zhao, La-Bao Zhang, Xiao-Qing Jia, Huabing Wang, Lin Kang, Jian Chen, Peiheng Wu   +21 more
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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
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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
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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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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
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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
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Accurate determination of terahertz optical constants by vector network analyzer of Fabry-Perot response [PDF]

, 2013
This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.38.005438.
Wang, X, Sun, W, Yang, B, Donnan, R, Zhang, Y   +4 more
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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
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