Terahertz waves offer unique functionalities for material characterization and quality control.

Terahertz waves can penetrate through many optically opaque materials, allowing us to see inside many environments that are visually inaccessible. In addition, most molecules have unique spectral signatures at terahertz frequencies, enabling us to identify them under terahertz illumination. Furthermore, terahertz waves are non-ionizing and non-destructive and, therefore, do not pose a health risk.The combination of these attractive specifications, provides a unique platform for many non-destructive quality control applications.