ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 46, (1) 25 - 27 (2002)

Lichvár Peter, Liška Marek, Galusek Dušan
Joint Laboratory of Glass of the Institute of Inorganic Chemistry, Slovak Academy of Sciences and of the Trenčín University, Študentská 2, 91150 Trenčín, Slovak Republic

Keywords: Kramers-Kronig transformation, Infrared reflectance spectra, Absorption spectra

The results of Kramers-Kronig transformation obtained from three different software packages (Omnic, Perkin Elmer, and Kluger Nielsen) are discussed. Although identical testing input data (reflectance spectra of yttria-aluminosilicate glasses) were used for the calculations of absorption spectra, the transformations yield qualitatively different results. As the exact algorithms used in commercially available software are unknown to us, it is not possible to give sufficient explanation of described phenomenon. The main aim of the present contribution is to call the attention to this problem and to initiate discussion among the spectroscopists community.

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