  This study investigates different type of semiconductor crystals including
assessing several physical characteristics and relevant parameters, which are
refraction index, multiphoton absorption coefficient, electro-optic
coefficient, nonlinear coefficient, phase tilting angle, and figure of merit,
and mapping them for a comparison to look into options which can be promising
alternative efficient sources for Terahertz (THz) generation due to the
increasing day to day demand for the efficient sources. The Zinc blende
Semiconductor Crystals (ZnTe, ZnSe, GaP, GaAs, and CdTe) as well as newly
introduced elemental semiconductors (Selenium and Tellurium) are examined. In
this study, we aimed to combine literature review to gather the scattered data
about optical properties of semiconductor materials introduced here as well as
theoretical calculations. Some of the missing data that is not available from
previous research or literature will be calculated and modelled here based on
the dielectric function and intrinsic properties of the abovementioned
semiconductors. It is discovered that at a higher pumping wavelength, Selenium
crystal will make the most promising source for terahertz generation due to its
properties compared with the other materials assessed in this study. These
freshly introduced semiconductors with different pumping conditions can lead to
an optimistic view for the unprecedented efficiencies.
