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Applied Optics

Applied Optics


  • Vol. 37, Iss. 17 — Jun. 10, 1998
  • pp: 3697–3704

Correction of instrument line-shape distortions in Fourier transform spectroscopy

Piera Raspollini, Peter Ade, Bruno Carli, and Marco Ridolfi  »View Author Affiliations

Applied Optics, Vol. 37, Issue 17, pp. 3697-3704 (1998)

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A recovery procedure has been developed to correct instrument line-shape distortions observed in Fourier transform spectroscopy. The procedure can be described as a phase-error correction performed in the spectral domain to correct for path-difference-dependent phase errors observed in sharp spectral features. The technique has been applied successfully to high-resolution atmospheric emission spectra. The inherent broadening of the real features has been separated accurately from instrumental distortions. Using models for the path-difference-dependent error sources and data from two narrow window regions at 50 and 118 cm-1, we show that the distortion has a simple dependence on the spectral frequency.

© 1998 Optical Society of America

OCIS Codes
(070.2590) Fourier optics and signal processing : ABCD transforms
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(300.0300) Spectroscopy : Spectroscopy

Piera Raspollini, Peter Ade, Bruno Carli, and Marco Ridolfi, "Correction of Instrument Line-Shape Distortions in Fourier Transform Spectroscopy," Appl. Opt. 37, 3697-3704 (1998)

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