Department of Physics and Mathematics, University of Eastern Finland, P.O. Box 111, FI-80101 Joensuu, Finland.
Opt Lett. 2010 Mar 1;35(5):631-3. doi: 10.1364/OL.35.000631.
We show that modified Kramers-Kronig relations provide a useful tool to test the validity of the complex refractive index extracted from transmission terahertz spectra of porous matrices containing pharmaceutical materials. The role of scattering of terahertz radiation is qualitatively considered as a reason for the observed discrepancy between experimental data and the values extracted from the inverted complex refractive index. As an example we present an analysis of the terahertz spectra of carbamazepine and lactose alpha-monohydrate.
我们表明，修正的克喇末-克龙尼克关系为验证从含有药物材料的多孔基质的太赫兹透射光谱中提取的复折射率的有效性提供了有用的工具。太赫兹辐射散射的作用被定性地认为是观察到实验数据与从反演的复折射率中提取的值之间差异的原因。作为一个例子，我们给出了卡马西平和α-乳糖一水合物的太赫兹光谱分析。
