Method and apparatus for the detection of terahertz radiation absorption
作者： Seth Trotz , Peter James Coyle
DOI:
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摘要: The invention is a method and apparatus for the detection of terahertz radiation. In one embodiment, frequency modulated spectroscopy performed on swept source (202) coherent far infrared electromagnetic radiation that focused target. A beam (f(t)) passes through cell (208) in which target housed, losing energy as certain frequencies are absorbed by contaminants detector (206) positioned to determine how much lost (e.g., fail transmit cell), thereby indicating presence
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