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Laser System to Map Ozone Depletion

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Brent D. Johnson

Ten years ago, NASA expressed an interest in a laser operating at approximately 120 µm for an orbital mission to map the upper atmosphere. This began an effort that has led to the development of a terahertz gas laser that will be part of the space agency's Earth Observing System Aura satellite. The 2.5-THz Laser Local Oscillator will be used to map the presence of the hydroxyl radical (OH), which is partially responsible for the depletion of ozone in the atmosphere. The Earth Observing System Aura satellite, slated for launch in 2004, will monitor the composition and chemistry of Earth's...Read full article

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    Published: April 2003
    Accent on ApplicationsApplicationsBasic ScienceEarth Observing System Aura satellitehydroxyl radicalSensors & Detectorsterahertz gas laser

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