Title :
Terahertz Imaging With Quantum-Well Photodetectors
Author :
Zhou, T. ; Zhang, R. ; Guo, X.G. ; Tan, Z.Y. ; Chen, Z. ; Cao, J.C. ; Liu, H.C.
Author_Institution :
Key Lab. of Terahertz Solid-State Technol., Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China
fDate :
7/1/2012 12:00:00 AM
Abstract :
We present an imaging system based on a terahertz (THz) quantum-well photodetector (QWP). The THz QWP possessing high sensitivity at THz frequency band (0.3-10 THz) is utilized as a detector for imaging. We obtained images of a concealed sample in envelope by detecting the transmitted THz radiation from a black-body source as background radiation. This letter shows the potential of THz QWPs for imaging.
Keywords :
blackbody radiation; image sensors; photodetectors; quantum well devices; submillimetre wave imaging; terahertz wave imaging; black body source; frequency 0.3 THz to 10 THz; imaging detector; quantum well photodetectors; terahertz imaging; terahertz quantum well photodetector; Detectors; Imaging; Photodetectors; Quantum cascade lasers; Real time systems; Signal to noise ratio; Detector; imaging; quantum well; terahertz;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2196033
