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Proceedings Paper

Photometric Accuracy And Phase Correction In Fourier Transform Infrared (FTIR)
Author(s): James M. Quigley
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Paper Abstract

Photometric accuracy in Fourier spectroscopy depends not only on instrumental factors, but also on the method used to produce the spectrum from the interferogram. Almost all FT-IR instruments compute the spectrum by means of apodization, complex FFT and multiplicative phase correction steps. When the contribution of the apodization and phase correction steps to photometric inaccuracy is examined, two classes of error are found: error in computing the reference transform and error resulting from the contrast correction function. Means of eliminating of minimizing these errors are considered. Alternate methods of phase correction are discussed.

Paper Details

Date Published: 29 October 1981
PDF: 6 pages
Proc. SPIE 0289, 1981 Intl Conf on Fourier Transform Infrared Spectroscopy, (29 October 1981); doi: 10.1117/12.932185
Show Author Affiliations
James M. Quigley, Bio-Rad Laboratories, Inc. (United States)


Published in SPIE Proceedings Vol. 0289:
1981 Intl Conf on Fourier Transform Infrared Spectroscopy
Hajime Sakai, Editor(s)

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