Terahertz (THz) waves fall between microwave and
infrared radiation in the electromagnetic spectrum, oscillating at
frequencies of between 100 billion and 30 trillion cycles per
second. These waves are prized for their distinctive properties:
they can penetrate paper, clothing, wood and walls, as well as
detect air pollution. THz sources could revolutionize security and
medical imaging systems. What’s more, their ability to carry vast
quantities of data could hold the key to faster wireless
communications.
