TitleTHz波的小波变换频谱分析
Other TitlesWavelet-transform in terahertz time-domain spectroscopy
Authors邓玉强
邢岐荣
郎利影
柴路
王清月
张志刚
Affiliation天津大学精密仪器与光电子工程学院超快激光研究室,光电信息技术科学教育部重点实验室,天津,300072
天津大学精密仪器与光电子工程学院超快激光研究室,光电信息技术科学教育部重点实验室,天津,300072
北京大学信息科学与技术学院量子电子学研究所,北京,100871
KeywordsTHz波 频谱分析 小波变换
terahertz radiation
spectrum analysis
wavelet-transform
Issue Date2005
Publisher物理学报
Citation物理学报.2005,54,(11),5224-5227.
Abstract将小波变换引入THz波时域光谱技术.将水蒸气的THz波时域信号通过小波变换转化为二维的时间-频率平面,得到了和文献报道数据相一致的水蒸气的吸收谱线.同时发现了THz波频谱的时域分布特性,这将有利于进一步研究THz波与物质相互作用的内在机理.
The application of the wavelet-transform to terahertz time-domain spectroscopy ( THz-TDS) is described. Using wavelet-transform to analyze the time-domain signals passing through water vapor measured by time-domain spectroscopy, we got the absorption spectra of water vapor in the frequency range from 0.5 to 2.5THz, which agree well with the results reported in the literature. Moreover, wavelet-transform in THz-TDS opens up a new way for the analysis of the time-domain properties of absorption spectra of water vapor.
URIhttp://hdl.handle.net/20.500.11897/253718
ISSN1000-3290
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