Fourier Self-Deconvolution: A Method for Resolving Intrinsically Overlapped Bands

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Abstract:

The general theory of Fourier self-deconvolution, i.e., spectral deconvolution using Fourier transforms and the intrinsic line-shape, is developed. The method provides a way of computationally resolving overlapped lines that can not be instrumentally resolved due to their intrinsic linewidth. Examples of the application of the technique to synthetic and experimental infrared spectra are presented, and potential applications are discussed. It is shown that lines in spectra having moderate signal/noise ratios (∼1000) can readily be reduced in width by a factor of 3. The method is applicable to a variety of spectroscopic techniques.

Keywords: Computer, applications; Deconvolution; Fourier transform; Infrared

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702814732634

Affiliations: 1: Division of Chemistry, National Research Council of Canada, Ottawa, Ontario K1A OR6, Canada; on leave of absence from the Department of Physics University of Oulu, 90570 Oulu 57, Finland 2: Division of Chemistry, National Research Council of Canada, Ottawa, Ontario K1A OR6, Canada

Publication date: May 1, 1981

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