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Caltech engineers develop inexpensive 'X-ray' technology to see through solid materials

from Digital Trends

A pair of Caltech engineers took an ordinary microchip and tweaked it so it can see through solid materials. These X-ray-like chips are inexpensive and can be installed on phones or tablets. Ali Hajimiri and Kaushik Sengupta, a duo of electrical engineers at the California Institute of Technology, have developed silicon microchips that radiate high-frequency electromagnetic waves called terahertz (THz) waves. These waves can pass through solid materials and send back detailed images of what lies behind them. Hajimiri and Sengupta believe their technology could be used in many areas, such as by law enforcement to detect explosives and other threats. more

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