New low-cost terahertz camera provides greater sensitivity and speed than previous versions. It can also capture information about the orientation, or “polarization,” of the waves
A new kind of camera can detect terahertz pulses rapidly, with high sensitivity, and at room temperature and pressure. Terahertz radiation can penetrate many nonmetallic materials and detect signatures of certain molecules, qualities that could lead to an array of applications, including airport security scanning, industrial quality control, astrophysical observations, and more.