New Terahertz Detectors and Light Sources in Japan Could Open practical application of terahertz waves
There are high expectations for the application of terahertz-frequency electromagnetic waves in various fields, including the non-destructive detection of narcotics or stimulants in mail, the identification of foreign matter in food, and investigation of residual chemicals in crops. However, terahertz waves have yet to be used widely because of the difficulty in generating and detecting …