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Tiny, Convenient Terahertz Microchips Can See Inside Objects
• popsci.comA new silicon microchip can do what no other silicon microchip could before, generating and transmitting radio waves in the terahertz range. The tiny chip operates at 300 times the speed of the CMOS chip in your smartphone, and could someday be used to peer through walls, inside containers and into the food supply.
It can see a knife hidden inside a teddy bear, like the image above. It can even determine the fat content of a piece of chicken, apparently.
Terahertz scanners have long been touted as the future of security--electromagnetic waves in that frequency range can penetrate where other forms of radiation cannot, but they don't produce the damaging ionizing radiation of X-rays.
