What Are Terahertz Devices?

Terahertz is a term that I have see quite a bit recently; Terahertz describes a class of short wavelength radiation between infrared and microwaves. The actual wavelength can be from 1 millimeter to 1 micrometer, as illustrated below. The applications for devices using these high-frequency wavelengths also cover a pretty broad spectrum (no pun intended) of technologies, from communication to medicine to airport security:

Communication Technologies Could Be 1,000 Times Faster

How Terahertz Laser Scanners Will Spy On You In Airports

Solid-State Terahertz Devices Could Scan For Cancer

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