Results 21 to 30 of about 275,542 (299)

Terahertz pump-probe experiment at the synchrotron light source MLS [PDF]

, 2013
We have developed a pump-probe experiment utilizing broad-band coherent terahertz synchrotron radiation provided by the Metrology Light Source (MLS).
H.-W. Hubers, Hoehl, Arne, Pohl, Andreas, Ulm, Gerhard, Müller, Ralph, R. Muller, Pavlov, Sergey, A. Pohl, S. G. Pavlov, M. Ries, G. Wustefeld, Wüstefeld, Godehard, Hübers, Heinz-Wilhelm, Ries, Markus, G. Ulm, A. Hoehl   +15 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

Time-resolved electronic capture in germanium doped with hydrogen-like impurity centers [PDF]

, 2012
The capture of free holes and electrons in germanium (Ge) doped by gallium (Ga) or antimony (Sb) has been studied by a time-resolved pump-probe experiment with the free-electron laser FELBE at the Helmholtz-Zentrum Dresden-Rossendorf.
Pavlov, S.G., H.-W. Hubers, S. Winnerl, Shastin, V.N., M. Mittendorff, S. G. Pavlov, Deßmann, N., N. Dessmann, R. Kh. Zhukavin, Zhukavin, Roman, Mittendorff, M., Hübers, Heinz-Wilhelm, V. N. Shastin, Winnerl, S.   +13 more
core   +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

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

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
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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

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

In–HgCdTe–In structures with symmetric nonlinear I–V characteristics for sub-THz direct detection

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2017
This paper reports on the development and investigations of In–Hg1–xCdxTe–In structures with symmetric nonlinear I–V curves that are sensitive to sub-terahertz radiation.
N.I. Kukhtaruk, V.V. Zabudsky, A.V. Shevchik-Shekera, N.N. Mikhailov, F.F. Sizov   +4 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