1 December 1989 Phase Spectra And Phase Corrections In High Resolution Fourier Transform Spectroscopy
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Proceedings Volume 1145, 7th Intl Conf on Fourier Transform Spectroscopy; (1989) https://doi.org/10.1117/12.969413
Event: Seventh International Conference on Fourier and Computerized Infrared Spectroscopy, 1989, Fairfax, VA, United States
Abstract
Proper phase correction determines the accuracy and quality of the spectral information obtained by Fourier spectrometry. The spectrum produced by Fourier transforming an asymmetric interferogram is a complex function and the process of phase correction rotates the imaginary part of the spectrum into the real plane producing a real spectrum that contains all the spectral information and an imaginary part that contains only noise. For two-sided interferograms improper phase correction produces a second-order error in the intensity of the spectrum. In one-sided interferograms, the antisymmetric component of the interferogram transforms into the imaginary part of the line profile, and phase errors can have a first-order effect on the line position. Practical examples of phase spectra and both corrected and uncorrected power spectra will be presented.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mark C. Abrams, "Phase Spectra And Phase Corrections In High Resolution Fourier Transform Spectroscopy", Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); doi: 10.1117/12.969413; https://doi.org/10.1117/12.969413
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