Title :
Reflection imaging with terahertz quantum-cascade laser and quantum-well photodetector
Author :
Tan, Zhi Yong ; Tao Zhou ; Fu, Zhang Long ; Cao, Jun Cheng
Author_Institution :
Key Lab. of Terahertz Solid-State Technol., Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China
Abstract :
A reflection imaging system based on the terahertz quantum-well photodetector is presented. Reflected terahertz imaging of a logo on a universal serial bus (USB) flash disk is demonstrated. A spatial resolution better than 0.4 mm is achieved. This experiment demonstrates that the quantum-well photodetector is potentially useful for reflection imaging applications.
Keywords :
disc storage; photodetectors; quantum cascade lasers; quantum well devices; reflectivity; terahertz wave imaging; USB; reflected terahertz imaging; terahertz quantum- well photodetector; terahertz quantum-cascade laser; universal serial bus flash disk;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.4079
