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Terahertz radiation detects weapons, explosives, drugs.(Testing/Analysis)

Advanced Materials & Processes,  September, 2004  

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Terahertz radiation technology that enables operators to identify weapons, explosives, and drugs carried by people has been developed by TeraView Ltd., Cambridge, England. Terahertz radiation ([10.sup.-12] hertz) lies between microwaves and radio waves in the electromagnetic spectrum. Until now, it has not been possible to generate terahertz radiation with enough energy to be useful.

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However, very recently, advances in ultra-fast pulsed laser technology have led to the generation and detection of broad bandwidth terahertz light for the first time. The radiation is generated by ...

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