Title :
Terahertz radiation detection by double grating-gate transistors in high magnetic fields
Author :
But, Dmytro ; Dyakonova, Nina ; Coquillat, Dominique ; Teppe, Frédéric ; Knap, Wojciech ; Watanabe, Takayuki ; Tanimoto, Yudai ; Tombet, Stephane Boubanga ; Otsuji, Taiichi
Author_Institution :
Lab. Charles Coulomb, Univ. Montpellier 2, Montpellier, France
Abstract :
Double-grating-gate field-effect transistors have a great potential as terahertz detectors. The double grating gate serves not only for carrier density tuning but also as an efficient THz radiation coupler. Low and high magnetic field detection results are used to determine the electron mobility and electron concentration, respectively, in the different parts of the channel.
Keywords :
carrier density; electron mobility; field effect transistors; magnetic fields; submillimetre wave couplers; submillimetre wave transistors; terahertz wave detectors; THz radiation coupler; carrier density tuning; double-grating-gate field-effect transistors; electron concentration; electron mobility; high magnetic field detection; terahertz detectors; terahertz radiation detection; Charge carrier density; Detectors; Gratings; Logic gates; Magnetic fields; Spectral analysis; Transistors;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380135
