THz-time domain spectroscopy of (001) ZnSe

Abstract

Terahertz absorbance in (001) ZnSe has been experimentally studied using a femtosecond (fs) pulse train emitted from a self mode lock fiber laser. Preliminary results suggest three different regions for the phase and two different behaviors. The Drude model calculations of the complex conductivity suggest a collision frequency Δf around 0.06 THz.

Optical and THz investigations of mid-IR materials exposed to alpha particle irradiation

“…In the last 15 years, THz investigations of various materials gained momentum, as new techniques started to be used for dielectric materials identification/characterization in the far IR, through the evaluation of the dielectric constant and loss tangent by time-domain terahertz spectroscopy, which make possible the measurement of both the amplitude and phase of the detected signal, or by estimating the absorption coefficients and the refractive indices of various glasses and ceramics282930313233343536.…”