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Applied Optics

Applied Optics


  • Vol. 28, Iss. 11 — Jun. 1, 1989
  • pp: 2052–2056

Simultaneous NO and NO2 DIAL measurement using BBO crystals

H. J. Kölsch, P. Rairoux, J. P. Wolf, and L. Wöste  »View Author Affiliations

Applied Optics, Vol. 28, Issue 11, pp. 2052-2056 (1989)

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We report a new differential absorption lidar technique for measuring simultaneously the concentrations of NO and NO2 in the atmosphere. The technique is based on the correlation of the 450-nm absorption band of NO2 and 227-nm absorption band of NO by frequency doubling. This performance has been allowed by the advent of a new and highly efficient frequency doubling crystal: the β-BaB2O4. A test experiment on a NO/NO2 emitter has been performed, demonstrating the efficiency of the technique. The detection limit is estimated to be ~1 ppm · m for NO2 and 100 pp · m for NO. The range of measurement is limited to 1 km, due to the strong UV Rayleigh scattering and O2 absorption.

© 1989 Optical Society of America

Original Manuscript: June 23, 1988
Published: June 1, 1989

H. J. Kölsch, P. Rairoux, J. P. Wolf, and L. Wöste, "Simultaneous NO and NO2 DIAL measurement using BBO crystals," Appl. Opt. 28, 2052-2056 (1989)

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