Abstract
The correction of phase error in Fourier transform spectroscopy is discussed. Phase error is corrected by multiplying the inverse transform of the measured interferogram by e−iϕ(ω), where ϕ(ω) is the phase error in the spectrum. This error is determined from a low-resolution, two-sided interferogram. It is absolutely essential that the truncation-apodization function which multiplies the interferogram have an even part which is symmetric about the x=0 position. If this function is not properly located, large errors in the corrected spectrum can occur.
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References
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Supported by the National Science Foundation through grant DMR-8110422.
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Porter, C.D., Tanner, D.B. Correction of phase errors in fourier spectroscopy. Int J Infrared Milli Waves 4, 273–298 (1983). https://doi.org/10.1007/BF01008607
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DOI: https://doi.org/10.1007/BF01008607