Results 21 to 30 of about 3,826 (299)

Molecular Junctions for Terahertz Switches and Detectors

Nano Letters, 2023
Abstract Molecular electronics targets tiny devices exploiting the electronic properties of the molecular orbitals, which can be tailored and controlled by the chemical structure/conformation of the molecules. Many functional devices have been experimentally demonstrated; however, these devices were operated in the low frequency domain (mainly,
Hnid, Imen, Yassin, Ali, Arbouch, Imane, Guérin, David, Van dyck, Colin, Sanguinet, Lionel, Lenfant, Stéphane, Cornil, Jérôme, Blanchard, Philippe, Vuillaume, Dominique   +9 more
openaire   +4 more sources

Comparison of Photoconductive Antenna, TeraFET and Schottky Barrier Diode as Detectors for Continuous-Wave Terahertz

, 2022
S.123-124The terahertz response between 100 GHz and 2 THz is compared for three different detectors: a TeraFET, a Schottky barrier diode and an InGaAs-based photoconductive antenna.
Nellen, S., Heinrich, W., Shevchenko, S., Krozer, V., Globisch, B., Schwanke, G., Dischke, E., Rämer, A., Schell, M., Kohlhaas, R., Deumer, M., Liebermeister, L.   +11 more
core   +1 more source

Enhancement of terahertz response in a microstructure-integrated-type-II Dirac semimetal

AIP Advances, 2023
Terahertz detection technology has been confronted with formidable impediments, notably the paucity of sensitivity and operating temperature for photodetectors based on traditional bulk materials. In an attempt to surmount the difficulties, we propose an
Xuyang Lv, Kaixuan Zhang, Mengjie Jiang, Shi Zhang, Libo Zhang, Li Han, Huaizhong Xing, Dong Wang, Shiqi Lan, Lin Wang, Shijian Tian, Xiaoshuang Chen   +11 more
doaj   +1 more source

Microwave SINIS Detectors

Applied Sciences, 2022
This review presents the main characteristics and mechanisms of operation of superconductor–insulator–normal metal–insulator–superconductor (SINIS) microwave detectors.
Mikhail Tarasov, Aleksandra Gunbina, Artem Chekushkin, Renat Yusupov, Valerian Edelman, Valery Koshelets   +5 more
doaj   +1 more source

Near-Field Analysis of Terahertz Pulse Generation From Photo-Excited Charge Density Gradients [PDF]

, 2015
Excitation of photo-current transients at semiconductor surfaces by subpicosecond optical pulses gives rise to emission of electromagnetic pulses of terahertz (THz) frequency radiation.
Natrella, M, Freeman, JR, Renaud, CC, Graham, CS, Linfield, EH, Moodie, DG, Cannard, PJ, Davies, AG, Mitrofanov, O, Seeds, AJ, Mueckstein, R, Hatem, O, Robertson, MJ   +12 more
core   +1 more source

Sensitive Room-Temperature Graphene Photothermoelectric Terahertz Detector Based on Asymmetric Antenna Coupling Structure

Sensors, 2023
A highly sensitive room-temperature graphene photothermoelectric terahertz detector, with an efficient optical coupling structure of asymmetric logarithmic antenna, was fabricated by planar micro-nano processing technology and two-dimensional material ...
Liang Hong, Lanxia Wang, Miao Cai, Yifan Yao, Xuguang Guo, Yiming Zhu   +5 more
doaj   +1 more source

A planar Gunn diode operating above 100 GHz [PDF]

, 2007
We show the experimental realization of a 108-GHz planar Gunn diode structure fabricated in GaAs/AlGaAs. There is a considerable interest in such devices since they lend themselves to integration into millimeter-wave and terahertz integrated circuits ...
Holland, M.C., Stanley, C.R., Pilgrim, N.J., Cumming, D.R.S., Thayne, I.G., Khalid, A.H., Dunn, G.M.   +6 more
core   +1 more source

Terahertz single photon detectors [PDF]

SCIENTIA SINICA Physica, Mechanica & Astronomica, 2021
Terahertz detection plays an increasingly important role in various fields, such as astronomy, national defense, security checking, and biotechnology. With the development of technology, the sensitivity of terahertz detectors is continuously improving, and the detection of terahertz single photons has been demonstrated in recent years. In the terahertz
LiLi SHI, JingBo WU, XueCou TU, BiaoBing JIN, Jian CHEN, PeiHeng WU   +5 more
openaire   +1 more source

Design of wideband terahertz pyroelectric detector based on metasurface [PDF]

Journal of Hebei University of Science and Technology
In order to solve the problems of low absorption efficiency and small frequency range of traditional terahertz (THz) detectors, a broadband terahertz metasurface pyroelectric detector was proposed by combining a dual metasurface absorption array ...
Ming ZHANG, Junyao ZHANG, Najiao ZHANG, Peng DONG, Baozhu WANG, Yan SHANG, Lei DUAN   +6 more
doaj   +1 more source

6.2-GHz modulated terahertz light detection using fast terahertz quantum well photodetectors

Scientific Reports, 2017
The fast detection of terahertz radiation is of great importance for various applications such as fast imaging, high speed communications, and spectroscopy.
Hua Li, Wen-Jian Wan, Zhi-Yong Tan, Zhang-Long Fu, Hai-Xia Wang, Tao Zhou, Zi-Ping Li, Chang Wang, Xu-Guang Guo, Jun-Cheng Cao   +9 more
doaj   +1 more source