In physics, terahertz radiation, also called submillimeter radiation, terahertz waves, tremendously high frequency, T-rays, T-waves, T-light, T-lux, or THz, consists of electromagnetic waves within the ITU-designated band of frequencies from 0.3 to 3 terahertz (THz, 1 THz = 1012 Hz). Wavelengths of radiation in the Terahertz band correspondingly r...