Stratospheric Species Measurements With Tunable Diode Laser Absorption Spectroscopy

Robert T Menzies; Christopher R. Webster

doi:10.1117/12.937441

26 November 1983 Stratospheric Species Measurements With Tunable Diode Laser Absorption Spectroscopy

Robert T Menzies, Christopher R. Webster

Proceedings Volume 0438, Tunable Diode Laser Development and Spectroscopy Applications; (1983) https://doi.org/10.1117/12.937441
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

A balloon-borne instrument for stratospheric research has been developed with the capability to simultaneously measure several chemically related species in situ, for a full diurnal cycle. The instrument utilizes tunable infrared diode lasers (TDLs) to provide the radiation in selected wavelength regions for sensitive absorption spectroscopy over a one-km round-trip path. The TDL radiation is directed to a remote retroreflector which is lowered 500 m below the instrument gondola. A HeNe laser and coaligned TV camera with CID imaging are used for retroreflector tracking. Currently the instrument operates with two TDLs, and the capability exists to measure four stratospheric species: NO, NO2, 03, and H2O. The number of operating TDLs can be expanded to four, resulting in the possibility of measuring several additional trace species.

Citation Download Citation

Robert T Menzies and Christopher R. Webster "Stratospheric Species Measurements With Tunable Diode Laser Absorption Spectroscopy", Proc. SPIE 0438, Tunable Diode Laser Development and Spectroscopy Applications, (26 November 1983); https://doi.org/10.1117/12.937441

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