Temperature controllable terahertz time-domain reflection spectroscopy of liquids

The investigation of liquids with terahertz spectroscopy is an intriguing topic. There is a variety of interacting forces between the molecules which gives rise to interesting properties like phase transitions or surface tension, these make the study of liquids by terahertz spectroscopy an intricate task. To study these microscopic dynamics and thermodynamic properties of liquids, a temperature controllable terahertz time-domain spectroscopy set-up in reflection geometry with an incident angle 60° is constructed.