SYSTEM AND METHOD OF HIGH SPEED MEASUREMENT OF TERAHERTZ WAVE

摘要

PURPOSE: A system and a method of high speed measurement of terahertz wave are provided to obtain a spectrum image of each material by analyzing material required for terahertz wave. CONSTITUTION: An optical delay unit(230) comprises a rotary type reflector having a plurality of wings. The laser beam which is divided at a bema splitter into two paths by using optical delay unit has time difference. The laser beams having time difference is respectively is projected to a terahertz wave generator(200) and a terahertz wave detection unit. The voltage signal is sampled and data of the terahertz wave pulse to the sample is collected. The voltage signal corresponds to the current signal generated in the terahertz wave detection unit. The sample is interposed between the terahertz wave generator and the terahertz wave detection unit.