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Appl Opt. 1993 Sep 20;32(27):5324-33. doi: 10.1364/AO.32.005324.

Airborne tunable diode laser spectrometer for trace-gas measurement in the lower stratosphere.

Applied optics

J Podolske, M Loewenstein

PMID: 20856342 DOI: 10.1364/AO.32.005324

Abstract

This paper describes the airborne tunable laser absorption spectrometer, a tunable diode laser instrument designed for in situ trace-gas measurement in the lower stratosphere from an ER-2 high-altitude research aircraft. Laser-wavelength modulation and second-harmonic detection are employed to achieve the required constituent detection sensitivity. The airborne tunable laser absorption spectrometer was used in two polar ozone campaigns, the Airborne Antarctic Ozone Experiment and the Airborne Arctic Stratospheric Expedition, and measured nitrous oxide with a response time of Is and an accuracy ≤ 10%.

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