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Wavelet Power Spectrum Estimation for High-resolution Terahertz Time-domain Spectroscopy

Kim, Youngchan, Jin, Kyung-Hwan, Ye, Jong-Chul, Ahn, Jae-Wook and Yee, Dae-Su (2011) Wavelet Power Spectrum Estimation for High-resolution Terahertz Time-domain Spectroscopy Journal of the Optical Society of Korea, 15 (1). pp. 103-108.

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Recently reported asynchronous-optical-sampling terahertz (THz) time-domain spectroscopy enables high-resolution spectroscopy due to a long time-delay window. However, a long-lasting tail signal following the main pulse is often measured in a time-domain waveform, resulting in spectral fluctuation above a background noise level on a high-resolution THz amplitude spectrum. Here, we adopt the wavelet power spectrum estimation technique (WPSET) to effectively remove the spectral fluctuation without sacrificing spectral features. Effectiveness of the WPSET is verified by investigating a transmission spectrum of water vapor

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Biosciences and Medicine
Authors :
Jin, Kyung-Hwan
Ye, Jong-Chul
Ahn, Jae-Wook
Yee, Dae-Su
Date : 25 March 2011
DOI : 10.3807/JOSK.2011.15.1.103
Grant Title : Ministry of Knowledge Economy
Projects : Industrial Strategic Technology Program
Uncontrolled Keywords : Terahertz time-domain spectroscopy, Wavelet, Asynchronous optical sampling, High spectral resolution
Depositing User : James Marshall
Date Deposited : 29 Jun 2020 15:37
Last Modified : 29 Jun 2020 15:37

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