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Tiny Terahertz Imager Chip Created

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PASADENA, Calif., Dec. 11, 2012 — Tiny, inexpensive silicon microchips that generate and radiate terahertz waves could be incorporated into handheld devices, such as smartphones, to suss out explosives in solid objects. Developed by a pair of engineers at California Institute of Technology (Caltech), the imager generates and radiates high-frequency electromagnetic waves that can penetrate a host of materials without the ionizing damage of x-rays. The chips could be used in applications ranging from homeland security to wireless communications — even touchless gaming. The technology could even lead to noninvasive...Read full article

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    Published: December 2012
    Glossary
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    scanning
    The successive analysis or synthesizing of the light values or other similar characteristics of the components of a picture area, following a given method.
    Ali HajimiriAmericasantennabiological weaponsBiophotonicsCaliforniaCalifornia Institute of TechnologyCaltechcancer diagnosischemical fingerprintsCMOSCommunicationscutoff frequencydefenseexplosiveshomeland securityImagingintegrated circuitsKaushik SenguptaphotonicsResearch & TechnologyscanningSensors & Detectorssilicon chipssilicon microchipsterahertz imagerterahertz scanning arrayterahertz signalsterahertz wavestransistorsWireless communications

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