Dielectric and structural characterisation of chalcogenide glasses via terahertz time-domain spectroscopy

摘要

Terahertz time-domain spectroscopy (THz TDS) was used to investigate a series of chalcogenide glasses. In particular, the dielectric properties at terahertz frequencies were determined and correlated with the glass composition. The experimental results showed a strong relationship between the dielectric properties and the polarizability of the glasses studied. A new explanation based on the coordination number of the metallic cations was proposed to understand these observations. (C) 2017 The Authors. Published by Elsevier B.V.