Title :
Detection of THz radiation with Schottky photoconductive antenna
Author :
Que, Christopher T. ; Tani, Masahiko ; Miyamaru, Fumiaki ; Hangyo, Masanori
Author_Institution :
Inst. of Laser Eng., Osaka Univ., Japan
Abstract :
Detection of rectified THz signal with an asymmetric photoconductive antenna, which has a Schottky contact on one side and an ohmic contact on the other side of photoconductive gap, is reported. The rectification effect is attributed to the Schottky barrier at the interface of the metal contact and the semiconductor substrate. The Schottky photoconductive antenna is useful for THz imaging and sensing applications because it enables us to detect the intensity THz radiation without scanning the time-delay at the cost of the spectral information.
Keywords :
Schottky barriers; Schottky diodes; ohmic contacts; photoconducting devices; solid-state rectifiers; submillimetre wave detectors; GaAs; Schottky barriers; Schottky contacts; Schottky photoconductive antenna; THz radiation detection; ohmic contacts; photoconductive gap; rectification effects; rectified THz signal detection; Laser excitation; Optical pulse generation; Optical pulses; Photoconductivity; Probes; Pump lasers; Radiation detectors; Schottky barriers; Semiconductor diodes; Surface emitting lasers;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572698
