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Open-Path High Sensitivity Atmospheric Ammonia Sensing with a 9 μm Quantum Cascade Laser

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Abstract

We develop a ground-based, non-cryogenic, open-path quantum cascade laser ammonia sensor operating at 9.06μm for high sensitivity atmospheric measurements. A cylindrical mirror multi-pass optical cell and wavelength modulation spectroscopy allow for pptv detection limits.

© 2010 Optical Society of America

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