Kokkoniemi, Joonas, Janne Lehtomäki, Vitaly Petrov, Dmitri Moltchanov, and Markku Juntti. "Frequency domain penetration loss in the terahertz band." In Millimeter Waves (GSMM) & ESA Workshop on Millimetre-Wave Technology and Applications, 2016 Global Symposium on, pp. 1-4. IEEE, 2016.
Results on penetration loss measurements in the THz frequencies between 0.1-2 THz are reported. The measurements were conducted with time domain spectroscopy using the TeraView TeraPulse 4000 measurement equipment. We concentrate on the frequency-dependent penetration characteristics of various materials typical for indoor environments, providing both qualitative and quantitative assessment. The results show that the lower end of the THz band (<; 0.5 THz) suffers only modest loss in comparison to the higher frequencies. For the materials considered in this paper, plastic, glass and hard-board, the exact penetration properties are both frequency- and material-dependent. The incident angle to the material increases the penetration loss through increased path length inside the material. The exact values of these losses are provided.
... The measurements were conducted with time domain spectroscopy using the TeraView TeraPulse 4000 measurement equipment. ... II. MEASUREMENT SETUP The measurements were made with the TeraView TeraPulse 4000 device. ...
for full paper see http://ieeexplore.ieee.org/abstract/document/7500309/
for more information about TeraView see http://www.azom.com/equipment-details.aspx?EquipID=4411