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Defense+Commercial Sensing Showcase
Combing the atmosphere: gas detection
A laser frequency-comb simultaneously measures nitrous oxide, carbon dioxide and water vapor, plus air pollutants ozone and carbon monoxide over two round-trip paths from a NIST building in Boulder, Colorado, to a reflector on a balcony of another building, and another reflector on a nearby hill. Credit: N. Hanacek/NIST
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