Investigation of aqueous alcohol and sugar solutions with reflection terahertz time-domain spectroscopy
Investigation of aqueous alcohol and sugar solutions with reflection terahertz time-domain spectroscopy
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DOI：
10.1364/oe.15.014717
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发表时间：
2007-10-29
期刊：
影响因子：
3.8
通讯作者：
Merbold, Hannes
中科院分区：
文献类型：
--
作者：
Jepsen, Peter Uhd;Moller, Uffe;Merbold, Hannes
我们详细分析了反射式太赫兹时域光谱的一般实现。该方法是自参考的，适用于所有入射角度和入射太赫兹辐射的所有极化。因此，在透射率测量困难的环境中，这是一种测定特别是液体的介电性质的通用方法。我们用反射太赫兹时域谱研究了液体在0.1-1.0太赫兹频率范围内的介电性质。我们将该技术应用于商业酒精饮料和白酒的酒精和糖浓度的测定。该实验的特殊几何形状允许对起泡饮料进行测量。(C)2007年美国光学学会。
We give a detailed analysis of a general realization of reflection terahertz time-domain spectroscopy. The method is self-referenced and applicable at all incidence angles and for all polarizations of the incident terahertz radiation. Hence it is a general method for the determination of the dielectric properties of especially liquids in environments where transmission measurements are difficult. We investigate the dielectric properties in the 0.1-1.0 THz frequency range of liquids using reflection terahertz time-domain spectroscopy. We apply the technique for the determination of alcohol and sugar concentration of commercial alcoholic beverages and liquors. The special geometry of the experiment allows measurement on sparkling beverages. (C) 2007 Optical Society of America.