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AnonTechie writes:

Officials from Guinness World Records today recognized DARPA’s Terahertz Electronics program for creating the fastest solid-state amplifier integrated circuit ever measured. The ten-stage, common-source amplifier operates at a speed of one terahertz (10^12 Hz), or one trillion cycles per second—150 billion cycles faster than the existing world record of 850 gigahertz set in 2012.

"Terahertz circuits promise to open up new areas of research and unforeseen applications in the sub-millimeter-wave spectrum, in addition to bringing unprecedented performance to circuits operating at more conventional frequencies,” said Dev Palmer, DARPA program manager. “This breakthrough could lead to revolutionary technologies such as high-resolution security imaging systems, improved collision-avoidance radar, communications networks with many times the capacity of current systems and spectrometers that could detect potentially dangerous chemicals and explosives with much greater sensitivity."