Title :
An algorithm for the removal of spurious oscillations from spectra derived from THz time-domain data
Author :
Naftaly, M. ; Miles, R.E.
Author_Institution :
Sch. of Electron. & Electr. Eng., Leeds Univ., Leeds
Abstract :
We present a simple algorithm for removing or reducing spurious oscillations in the THz spectra which result from secondary reflection peaks in samples or optical elements. The algorithm utilizes the fact that a THz time-domain trace containing secondary peaks can be represented as a convolution of the main peak and two or more delta functions.
Keywords :
electromagnetic wave reflection; submillimetre wave spectroscopy; THz time-domain spectra; secondary reflection peaks; spurious oscillations; Convolution; Data analysis; Detectors; Fast Fourier transforms; Fourier transforms; Frequency; Optical reflection; Smoothing methods; Spectroscopy; Time domain analysis; THz time-domain spectroscopy; secondary reflections; smoothing algorithm; spurious oscillations;
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.2007.4516590
