Terahertz radiation

Terahertz radiation refers to electromagnetic waves with frequencies between microwave and infrared light, roughly between 0.1 and 10 THz. This radiation can pass through many materials like clothing and plastics but is absorbed by water and metal. It’s useful in security scanners, medical imaging, and spectroscopy because it reveals chemical compositions without harmful ionizing radiation. Think of it as a bridge between microwaves and infrared, offering unique insights into materials and scenes while being safe for humans in controlled applications.