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Conscripting Terahertz Sensors

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Lynn Savage, Features Editor, [email protected]

Imaging and spectroscopy in the terahertz frequency range eventually will give troops a welcome advantage in the field. Terahertz waves are short enough to provide resolution of less than 1 mm, yet long enough to penetrate most nonmetallic substances, such as the materials used to make clothing, rucksacks and tarps. As such, they are useful to security agents and military personnel alike for revealing concealed weapons, chemical explosives and biological agents. Besides security applications such as airport screeners, higher-resolution terahertz sensors could provide enhanced...Read full article

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