Title :
Fast GaAs detector for THz radiation
Author :
Klappenberger, F. ; Renk, K.F. ; Schomburg, E. ; Summer, R. ; Ganichev, S. ; Prettl, W.
Author_Institution :
Inst. fur Angewandte Phys., Regensburg Univ., Germany
Abstract :
We present a fast detector for THz radiation. The detector consists of a current carrying n doped GaAs crystal built in a corner cube antenna system. Irradiation with THz radiation leads to a reduction of the direct current. We demonstrate the feasibility for detection by analysing single radiation pulses of a TEA CO/sub 2/ laser pumped FIR gas laser.
Keywords :
III-V semiconductors; gallium arsenide; infrared detectors; millimetre wave antennas; millimetre wave measurement; submillimetre wave detectors; submillimetre wave lasers; 280 micron; CO/sub 2/; DC reduction; GaAs; GaAs fast THz radiation detectors; NH/sub 3/; TEA CO/sub 2/ laser pumped FIR gas lasers; THz irradiation current reduction; corner cube antenna systems; current carrying n-doped GaAs crystals; short THz radiation pulses; single laser radiation pulses; Gallium arsenide; Gas detectors; Gas lasers; Laser excitation; Optical pulses; Photonic crystals; Pump lasers; Radiation detectors; Robustness; Schottky diodes;
Conference_Titel :
Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7423-1
DOI :
10.1109/ICIMW.2002.1076180
