The Optical and Dielectric Response of ZrO2 in Terahertz Region

By means of terahertz time-domain spectroscopy, the power absorption coefficient and refractive index of Zirconia were obtained. Meanwhile the complex dielectric function related those were also obtained. By analysis of the experimental data, a new phonon vibration mode at around 1.5 THz were firstly observed. Furthermore, using the Drude-Lorentzian model the contrast between the theoretical calculated data and the experimental data were plotted and discussed.