Title :
Real-Time, Transmission-Mode, Terahertz Imaging Over a 25-meter Distance
Author :
Lee, A.W.M. ; Qi Qin ; Kumar, Sudhakar ; Williams, Barry
Author_Institution :
Massachusetts Inst. of Technol., Cambridge
Abstract :
We demonstrate transmission-mode imaging over a 25 meter distance using a ~4.9- THz quantum-cascade laser, frequency-optimized for a low-loss (-0.5 dB/m) atmospheric window. The ~17-mW peak power allows real-time imaging with a 320x240 element microbolometer camera.
Keywords :
bolometers; image sensors; laser beam applications; micro-optics; optical windows; quantum cascade lasers; submillimetre wave imaging; atmospheric transmission window; microbolometer camera; quantum-cascade laser; real-time imaging; terahertz imaging; transmission-mode imaging; Atmospheric waves; Cameras; Drugs; Explosives; Frequency; Laboratories; Mirrors; Optical imaging; Quantum cascade lasers; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-834-6
DOI :
10.1109/CLEO.2007.4452876
