Recent Research Trends of Terahertz Measurement Standards

Terahertz (THz) technology has developed into a new research field in the frequency gap (THz gap) between infrared waves and microwaves. Recent innovation in THz technology has brought a wide variety of applications through advances in detection and emission techniques in the THz range. In order to use THz technology safely, the importance of quality control for measurements in the THz range is increasing in terms of regulation for electromagnetic compatibility or non-ionizing radiation protection of humans. Because of this, measurement standards for the accuracy control of THz measurement have been aggressively developed in leading national metrology institutes. We provide an overview of the current status of THz measurement standards.