Optical properties of wood biomass material obtained by terahertz ellipsometry

Recently, terahertz optical properties of biomass materials have been reported. However, for matrices or fillers with high terahertz wave absorption coefficients, obtaining the terahertz optical properties with conventional transmission measurements is challenging. Therefore, herein, terahertz time-domain ellipsometry in reflection configuration is used to measure high terahertz absorption biomass material. The terahertz optical properties of high absorption biomass material are investigated using terahertz ellipsometry.