Affiliation:
1. China University of Geosciences (Beijing)
Abstract
The effect of crystal-water contents on the optical properties and dielectric characteristics of calcium sulfate in the THz band is investigated. The complex dielectric constant and conductivity are analyzed using the Drude-Smith model. The refractive index and absorption coefficient are linearly increased with the content of crystal-water, and the corresponding linear fitting lines of R2 over 0.97 are obtained. The dielectric properties of calcium sulfate are significantly affected by the crystal-water content. These results indicate that a new method to quantitative measurement of the crystal-water content in hydrous minerals is provided.
Funder
National Natural Science Foundation of China
Open Fund of State Key Laboratory of Infrared Physics
Piesat Information Technology remote sensing interdisciplinary research project
Fundamental Research Funds for the Central Universities
Young Elite Scientists Sponsorship Program by Bast