Title :
A high performance CW-THz photomixing imaging system
Author :
Gregory, I.S. ; Drysdale, T.D. ; Tribe, W.R. ; Cummin, D. R S ; Evans, M.J. ; Missous, M. ; Linfield, E.H.
Author_Institution :
TeraView Ltd., Cambridge, UK
fDate :
27 Sept.-1 Oct. 2004
Abstract :
We have constructed a continuous-wave terahertz imaging system based on diode lasers, a photoconductive emitter, and a phase-sensitive photoconductive receiver. It is inexpensive and compact, but with a performance comparable with established pulsed terahertz systems. We also use a novel photonic crystal filter to remove unwanted low frequency noise components.
Keywords :
microwave photonics; photoconducting devices; photonic crystals; semiconductor lasers; submillimetre wave filters; submillimetre wave imaging; continuous wave terahertz imaging system; diode lasers; low frequency noise components; phase sensitive photoconductive receiver; photoconductive emitter; photomixing imaging system; photonic crystal filter; pulsed terahertz systems; Blades; Dipole antennas; Filters; Frequency; Optical beams; Optical imaging; Optical receivers; Optical sensors; Signal detection; Stimulated emission;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422227
