A broadband cavity ringdown spectrometer for in-situ measurements of atmospheric trace gases
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A broadband cavity ringdown spectrometer for in-situ measurements of atmospheric trace gases
This paper describes a broadband cavity ringdown spectrometer and its deployment during the 2002 North Atlantic Marine Boundary Layer Experiment (NAMBLEX) to measure ambient concentrations of NO3, N2O5, I2 and OIO at the Mace Head Atmospheric Research Station, Co. Galway, Ireland. The effective absorption path lengths accessible with the spectrometer generally exceeded 10 km, enabling sensitive...
متن کاملA broadband cavity ringdown spectrometer for in-situ measurements
This paper describes a broadband cavity ringdown spectrometer and its deployment during the 2002 North Atlantic Marine Boundary Layer Experiment (NAMBLEX) to measure ambient concentrations of NO 3 , N 2 O 5 , I 2 and OIO at the Mace Head Atmospheric Research Station, Co. Galway, Ireland. The effective absorption path lengths 5 accessible with the spectrometer generally exceeded 10 km, enabling ...
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We report on the development and characterization of the new compact infrared heterodyne receiver, iChips (Infrared Compact Heterodyne Instrument for Planetary Science). It is specially designed for ground-based observations of the terrestrial atmosphere in the mid-infrared wavelength region. Mid-infrared room temperature quantum cascade lasers are implemented into a heterodyne system for the f...
متن کاملBroadband cavity ringdown spectroscopy for sensitive and rapid molecular detection.
We demonstrate highly efficient cavity ringdown spectroscopy in which a broad-bandwidth optical frequency comb is coherently coupled to a high-finesse optical cavity that acts as the sample chamber. 125,000 optical comb components, each coupled into a specific longitudinal cavity mode, undergo ringdown decays when the cavity input is shut off. Sensitive intracavity absorption information is sim...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2005
ISSN: 1680-7324
DOI: 10.5194/acp-5-2547-2005