Suppression of spectral interferences due to water-vapor rotational transitions in terahertz time-domain spectroscopy | |
Wang, Yingxin ; Zhao, Ziran ; Chen, Zhiqiang ; Zhang, Yan ; Zhang, Li ; Kang, Kejun | |
2010-05-10 ; 2010-05-10 | |
关键词 | Optics |
中文摘要 | Absorption lines of atmospheric water vapor are commonly present in terahertz spectra measured in ambient air. These spectral interferences are caused by the rotational transitions of water molecules. In this study, we develop an effective method for suppression of the water-vapor effects by modeling the absorption lines using Lorentzian line shape and spectroscopic parameters extracted from the HITRAN database and then subtracting them iteratively in the frequency domain. The free-space terahertz pulse and the absorbance spectrum of an explosive material are restored successfully in the experimental verification. (C) 2008 Optical Society of America. |
语种 | 英语 ; 英语 |
出版者 | OPTICAL SOC AMER ; WASHINGTON ; 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/22436] ![]() |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Wang, Yingxin,Zhao, Ziran,Chen, Zhiqiang,et al. Suppression of spectral interferences due to water-vapor rotational transitions in terahertz time-domain spectroscopy[J],2010, 2010. |
APA | Wang, Yingxin,Zhao, Ziran,Chen, Zhiqiang,Zhang, Yan,Zhang, Li,&Kang, Kejun.(2010).Suppression of spectral interferences due to water-vapor rotational transitions in terahertz time-domain spectroscopy.. |
MLA | Wang, Yingxin,et al."Suppression of spectral interferences due to water-vapor rotational transitions in terahertz time-domain spectroscopy".(2010). |
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