Title :
Nonlinear photoresponse of FET THz broadband detectors at high power irradiation
Author :
But, Dmytro B. ; Drexler, C. ; Dyakonova, N. ; Drachenko, O. ; Ganichev, S.D. ; Knap, Wojciech
Author_Institution :
Lab. Charles Coulomb, Univ. Montpellier 2, Montpellier, France
Abstract :
The goal of our work was to study the capability of field effect transistors to measure high power THz radiation at frequencies from 0.1 up to 3 THz and to determine the linear detection limits. We observed different types of the photoresponse dependence on the incident radiation power. We qualitatively explain the unusual sub-linear behavior observed in high intensities.
Keywords :
microwave field effect transistors; photodetectors; terahertz wave detectors; FET THz broadband detector; THz radiation measurement; field effect transistor; frequency 0.1 THz to 3 THz; high power irradiation; linear detection limit determination; nonlinear photoresponse; Detectors; Field effect transistors; Free electron lasers; Frequency measurement; Laser excitation; Logic gates; Power measurement;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665747
