IEEE Conf. On Antennas and Propagation, Hyderabad International Convention Center, 18.12. 2018.
Terahertz (THz) radiation has the characteristics of both visible light and microwaves as they fall between that region of the EM spectrum. Though it remained obscure for a long time, it is widely exploited recently due to their many applications in the area of spectroscopy; in high-bandwidth wireless communication; space-based remote sensing; in security and defence where one can detect bombs and concealed weapons and identify harmful substances from a distance, and in non-destructive testing for quality control. THz radiation can also be used for cancer screening, brain imaging, tumor detection, and full-body scanning due to its capacity to yield detailed pictures while being safe.