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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 16 — Jun. 1, 1996
  • pp: 2947–2954

Ghosts and artifacts in Fourier-transform spectrometry

R. C. M. Learner, A. P. Thorne, and J. W. Brault  »View Author Affiliations


Applied Optics, Vol. 35, Issue 16, pp. 2947-2954 (1996)
http://dx.doi.org/10.1364/AO.35.002947


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Abstract

Ghosts in Fourier-transform spectrometry are important for three reasons: they can give rise to spurious coincidences of frequency differences in spectral analysis, distort the phase correction, and set a limit to the attainable signal-to-noise ratio. The various types of ghost, originating from amplitude modulation, phase modulation, and intermodulation, are described and discussed, together with some hardware and software artifacts. Recipes are given for identifying these features and, where possible, avoiding harmful effects from them.

© 1996 Optical Society of America

History
Original Manuscript: August 7, 1995
Revised Manuscript: December 22, 1995
Published: June 1, 1996

Citation
R. C. M. Learner, A. P. Thorne, and J. W. Brault, "Ghosts and artifacts in Fourier-transform spectrometry," Appl. Opt. 35, 2947-2954 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-16-2947


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References

  1. M. C. Hutley, Diffraction Gratings (Academic, London, 1982), pp. 49–51, 78, 142–151.
  2. G. Guelachvili, “Distortions in Fourier spectra and diagnosis,” in Spectrometric Techniques II, G. A. Vanasse, ed. (Academic, London, 1981), pp. 1–62.
  3. R. C. M. Learner, A. P. Thorne, I. Wynne-Jones, J. W. Brault, M. C. Abrams, “Phase correction of emission line Fourier-transform spectra,” J. Opt. Soc. Am. A 12, 2165–2171 (1995). [CrossRef]
  4. J. W. Brault, “Solar Fourier transform spectroscopy,” Oss. e Mem. dell Oss. Astrofis. di Arcetri 106, 33–50 (1978).
  5. A. P. Thorne, C. J. Harris, I. Wynne-Jones, R. C. M. Learner, G. Cox, “A Fourier transform spectrometer for the vacuum ultraviolet: design and performance,” J. Phys. E 20, 54–60 (1987). [CrossRef]
  6. J. W. Brault, “Fourier transform spectrometry,” in Proceedings of the Fifteenth Advanced Course of the Swiss Society of Astronomy and Astrophysics, A. O. Benz, M. C. E. Huber, M. Mayor, eds, Saas Fee, 1985 (Souverny, Observatoire de Genève, 1985), pp. 1–61.

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