Extracting Wood Properties From Structured THz Spectra: Birefringence and Water Content
Extracting Wood Properties From Structured THz Spectra: Birefringence and Water Content
复制标题
从结构化太赫兹光谱中提取木材特性：双折射和含水量
DOI：
10.1109/tthz.2017.2755508
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发表时间：
2017
影响因子：
3.2
通讯作者：
E. Hack
中科院分区：
文献类型：
--
作者：
P. Zolliker;M. Rüggeberg;L. Valzania;E. Hack
非均质材料的太赫兹透射光谱通常由于波沿沿着不同光路通过物体时的干涉而显示出结构化的光谱。特别令人感兴趣的是具有强双折射和明显的取向依赖结构的木材。在本文中，我们表明，在特定的偏振角，太赫兹透射谱显示在不同的频率的差距。这些间隙的频率变化可用于快速准确地确定双折射对湿度的依赖性。我们目前的结果云杉和山毛榉与不同的样品厚度和方向，并研究和模拟其光学特性作为含水量的函数。
Transmission terahertz (THz) spectroscopy on heterogeneous materials often shows structured spectra due to interference of waves passing through the object along different optical paths. Of special interest is wood with its strong birefringence and pronounced orientation-dependent structure. In this paper, we show that at specific polarization angles, the THz transmission spectra show gaps at distinct frequencies. The frequency changes of these gaps can be used for a fast and accurate determination of the dependence of birefringence on humidity. We present results for spruce and beech with different sample thicknesses and orientations, and study and model their optical properties as a function of water content.
DOI：
10.1007/s10762-014-0095-7
发表时间：
2014-11-01
影响因子：
2.9
作者：
Inagaki, Tetsuya;Ahmed, Belal;Reid, Matthew
通讯作者：
Reid, Matthew