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Applied Optics

Applied Optics


  • Vol. 35, Iss. 31 — Nov. 1, 1996
  • pp: 6115–6119

Spectral imaging of O2 infrared atmospheric airglow with an InGaAs array detector

V. V. Doushkina, R. H. Wiens, P. J. Thomas, R. N. Peterson, and G. G. Shepherd  »View Author Affiliations

Applied Optics, Vol. 35, Issue 31, pp. 6115-6119 (1996)

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A linear InGaAs array was used in an interference filter spectral imager to monitor the twilight decay of the O2 Infrared Atmospheric (0–1) band in the twilight airglow. The interference filter was centered at 1.582 μm and had a bandwidth (full width at half-maximum) of 1.0 nm. The imaging lens was a simple doublet, and a Fresnel lens was used for smearing any possible sky inhomogeneities. Spectra measured over Toronto in October 1994 show that the sensitivity and spectral discrimination against the contaminating OH spectrum are potentially sufficient to infer meaningful rotational temperatures. The improvements that would result from an area InGaAs array are discussed.

© 1996 Optical Society of America

Original Manuscript: November 27, 1995
Revised Manuscript: June 8, 1996
Published: November 1, 1996

V. V. Doushkina, R. H. Wiens, P. J. Thomas, R. N. Peterson, and G. G. Shepherd, "Spectral imaging of O2 infrared atmospheric airglow with an InGaAs array detector," Appl. Opt. 35, 6115-6119 (1996)

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