DUAL MODE TERAHERTZ SPECTROSCOPY AND IMAGING SYSTEMS AND METHODS

摘要

A terahertz radiation transmission and detection system includes a dual mode light source operable in a continuous wave mode and in a pulsed wave mode, wherein the dual mode light source is configured for generating a continuous wave light beam when operated in the continuous wave mode, and for generating a pulsed light beam when operated in the pulsed wave mode. The system also includes a beam selector for generating a pump beam comprising either the continuous wave light beam or the pulsed light beam, a terahertz transmitter configured for receiving the pump beam and for generating terahertz radiation, wherein the terahertz radiation comprises continuous wave terahertz radiation when the pump beam comprises the continuous wave light beam, and wherein the terahertz radiation comprises pulsed terahertz radiation when the pump beam comprises the pulsed light beam, and a terahertz receiver configured for receiving the continuous wave terahertz radiation and the pulsed terahertz radiation. The dual mode light source may comprise a continuous wave light source for generating a continuous wave light beam, and a pulsed light source for generating a pulsed light beam.