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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 27 — Sep. 20, 1998
  • pp: 6544–6549

Detector Nonlinearity Correction Scheme for the LPMA Balloonborne Fourier Transform Spectrometer

Pascal Jeseck, Claude Camy-Peyret, Sébastien Payan, and Toufic Hawat  »View Author Affiliations


Applied Optics, Vol. 37, Issue 27, pp. 6544-6549 (1998)
http://dx.doi.org/10.1364/AO.37.006544


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Abstract

The Limb Profile Monitor of the Atmosphere (LPMA) instrument is a Fourier transform spectrometer designed to record stratospheric (and in some cases tropospheric) absorption spectra from a balloon gondola. This spectrometer operates with two-detector output optics (photoconductive HgCdTe and photovoltaic InSb, liquid-nitrogen cooled). The response of the HgCdTe detector becomes nonlinear for high photon fluxes, which is the case for solar occultation. We have designed a processing scheme, based on the minimization of out-of-optical-band spectral artifacts, to correct for the effect of nonlinearity in the useful spectral range. The method is explained, and sample results are presented for spectra recorded in different balloon flight conditions and with two different HgCdTe detectors.

© 1998 Optical Society of America

OCIS Codes
(010.1280) Atmospheric and oceanic optics : Atmospheric composition
(040.3060) Detectors : Infrared
(300.0300) Spectroscopy : Spectroscopy
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms

Citation
Pascal Jeseck, Claude Camy-Peyret, Sébastien Payan, and Toufic Hawat, "Detector Nonlinearity Correction Scheme for the LPMA Balloonborne Fourier Transform Spectrometer," Appl. Opt. 37, 6544-6549 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-27-6544


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References

  1. C. Camy-Peyret, P. Jeseck, T. Hawat, G. Durry, S. Payan, G. Berubé, L. Rochette, and D. Huguenin, “The LPMA balloon-borne FTIR spectrometer for remote sensing of atmospheric constituents,” European Space Agency Publication SP 370, 323–328 (1995).
  2. S. Payan, C. Camy-Peyret, P. Jeseck, G. Durry, T. Hawat, and F. Lefevre, “HCl and ClONO2 profiles in the late vortex during SESAME,” in Polar Stratospheric Ozone, Air Pollution Research Rep. 56, J. A. Pyle, N. R. P. Harris, and G. T. Amanatidis, eds. (European Community, Luxembourg, 1996), pp. 280–285.
  3. G. Guelachvili, “Distortions in Fourier spectra and diagnosis,” in Spectrometric Techniques, G. Vanasse, ed. (Academic, New York, 1981), Vol. II, pp. 1–62.
  4. G. Guelachvili, “Distortion free interferograms in Fourier transform spectroscopy with nonlinear detectors,” Appl. Opt. 25, 4644–4648 (1986).
  5. P. R. Griffiths, and J. A. de Haseth, in Fourier Transform Infrared Spectrometry, P. J. Elving, and J. D. Winefordner, eds. (Wiley-Interscience, New York, 1986), pp. 93–97.
  6. M. L. Forman, W. H. Steel, and G. A. Vanasse, “Correction of asymmetric interferograms obtained in Fourier spectroscopy,” J. Opt. Soc. Am. 56, 59–63 (1966).
  7. M. C. Abrams, G. C. Toon, and R. A. Schindler, “Practical example of the correction of Fourier-transform spectra for detector nonlinearity,” Appl. Opt. 33, 6307–6314 (1994).

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