Attenuated Total Reflection Spectroscopy in Time Domain Using Terahertz Coherent Pulses

Abstract

We present a novel technique for time-domain attenuated total reflection spectroscopy in the terahertz (THz) frequency region. The advantage of this technique is that it can be used to access samples with various shapes and optical properties without changing the optical setup. The technique is applied to determine the complex dielectric constants in InAs and distilled liquid water.