中文摘要：

利用太赫兹时域光谱技术对六种常用非极性有机溶剂进行了测量,其中包括正己烷、环己烷、石油醚、甲苯、四氯化碳和二硫化碳。由于这些非极性有机溶剂常用于溶解其他有机物,因此测量非极性有机溶剂的光学参数,有助于进一步研究其他有机物在太赫兹波段的各种特性。在提取有机溶剂光学参数的过程中,考虑了用于盛放液体的比色皿对太赫兹信号的影响,通过改进传递函数的计算公式,提取出非极性有机溶剂的信息,精确计算得到光学参数折射率和吸收系数。

英文摘要：

Six kinds of non-polar organic solvents were measured by using terahertz time-domain spectroscopy（THz-TDS）,including positive hexane,cyclohexane,petroleum ether,carbon tetrachloride,carbon bisulfide,and toluene.These non-polar organic solvents are often used to solve other organics,so knowing the parameters of these non-polar organic solvents are important for studying optical properties of other organics in the frequency range of terahertz.The influence of the cuvette on THz signal was considered.Accurate optical parameters including refractive index and absorption coefficient were analyzed by the novel expression of the transfer function.In addition,according to the relationship among these absorption coefficients of five organic solvents,the polarity relationship can be determined.