Title :
THz pulse reconstruction
Author :
Fletcher, J.R. ; Swift, G.P. ; De Chang Dai ; Chamberlain, J.M.
Author_Institution :
Dept. of Phys., Durham Univ., Durham
Abstract :
A method of post-detection signal processing is described that removes the effects of water vapour, system echoes and propagation dispersion from the recorded signals of a pulsed THz system. The processed signal shows the response the sample would produce to a chosen form of input pulse, well localised in time and free from after-runners. The method requires recording a reference signal subject to all the undesired effects that affect the sample signal. Experimental results are presented for pulses transmitted and reflected by layered structures.
Keywords :
signal processing; submillimetre waves; THz pulse reconstruction; post-detection signal processing; propagation dispersion; pulsed THz system; recorded signals; reference signal subject; system echoes; water vapour; Convolution; Dispersion; Frequency measurement; Optical pulses; Optical reflection; Propagation delay; Pulse measurements; Pulsed laser deposition; Signal processing; Water resources; pulsed THz; signal processing; system echoes; water vapour;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516396
