Method and apparatus for terahertz imaging

Radiant energy – Infrared-to-visible imaging

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2503411, G01N 2117, G01N 2149

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active

056231458

ABSTRACT:
Certain material and objects can be characterized by a frequency-dependent absorption, dispersion, and reflection of terahertz transients in signals which pass illuminate the material or object. The present terahertz imaging system analyses that frequency dependence in the time-domain by collecting that transmitted signal propagating through the object and then processing the information contained in those signals for every point or "pixel" on that object. This is a non-invasive imaging technique that is capable of differentiating between different materials, chemical compositions, or environments.

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