TERAHERTZ SPECTRAL PROPERTIES OF COAL TAR
Abstract
Coal tar is a complex mixture of a large number of polycyclic aromatic hydrocarbons (PAHs) and heterocyclic compounds. The terahertz (THz) spectral properties of coal tar are studied by terahertz time-domain spectroscopy (THz-TDS). The absorption coefficient, refractive index, and relative permittivity of coal tar in the range of 0.2-2.5 THz are determined. Compared with pure cyclic hydrocarbons such as benzene, quinolone, and carbazole that are able to be extracted from coal tar, it is surprising to find that coal tar has a higher transmittance to THz waves than its pure components.
About the Authors
Z. X. Li
National Cooperative Innovation Centre of THz Science, University of Electronic Science and Technology of China
Russian Federation
Russian Federation
J. . Zhou
National Cooperative Innovation Centre of THz Science, University of Electronic Science and Technology of China
Russian Federation
Russian Federation
X. S. Guo
Shandong University of Science and Technology, Key Laboratory of Terahertz Technology
Russian Federation
Russian Federation
B. B. Ji
Shandong University of Science and Technology, Key Laboratory of Terahertz Technology
Russian Federation
Russian Federation
W. . Zhou
Shandong University of Science and Technology, Key Laboratory of Terahertz Technology
Russian Federation
Russian Federation
D. H. Li
Shandong University of Science and Technology, Key Laboratory of Terahertz Technology
Russian Federation
Russian Federation
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Review
For citations:
Li Z.X., Zhou J., Guo X.S., Ji B.B., Zhou W., Li D.H. TERAHERTZ SPECTRAL PROPERTIES OF COAL TAR. Zhurnal Prikladnoii Spektroskopii. 2018;85(5):735-739. (In Russ.)
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