Title :
Terahertz time-resolved spectroscopy with wavelet-transform
Author :
Deng, Yuqiang ; Sun, Qing ; Liu, Feng ; Wang, Changlei ; Xing, Qirong
Author_Institution :
Opt. Div., Nat. Inst. of Metrol., Beijing, China
Abstract :
We introduce a new technique for the joint time-frequency analysis of terahertz time-domain spectroscopy based on wavelet-transform technique. With this technique, the frequency components in the different parts of the pulse are clearly exhibited in different time locations. This technique avoids interference spectrum even when the echo terahertz pulse emerges. By varying the shape of the analysis wavelet, high time resolution and high frequency resolution are easily obtained.
Keywords :
interference; terahertz spectroscopy; time resolved spectroscopy; time-frequency analysis; wavelet transforms; interference spectrum; joint time-frequency analysis; terahertz time-domain spectroscopy; terahertz time-resolved spectroscopy; wavelet transform; Interference; Spectroscopy; Time domain analysis; Time frequency analysis; Wavelet analysis; Wavelet transforms; Ultrafast optics; spectroscopy; time domain analysis; wavelet transforms;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5646784
