OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy

| PUBLISHED BY SAS — AVAILABLE FROM SAS AND OSA

  • Vol. 40, Iss. 5 — Jul. 1, 1986
  • pp: 661–667

A Modified Sum Cauchy-Gauss Function to Fit Nonsymmetrical Bands to Infrared Internal-Reflectance Spectra

L. J. Janik

Applied Spectroscopy, Vol. 40, Issue 5, pp. 661-667 (1986)


View Full Text Article

Acrobat PDF (589 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

This paper describes an empirical model in which a derivative term is added to the usual sum Cauchy-Gauss function. The modified function introduces asymmetry into the band profile enabling it to fit bands to distorted infrared spectra, such as infrared attenuated total reflectance (ATR) spectra. The model uses 3M + 5 parameters (for M bands). Parameters for each band are height, position, and half-width, with additional parameters for the Cauchy proportion, derivative scaling, half-width scaling, and baseline. The model has been applied to the splitting of the ATR spectra of liquid benzene and appears to give a good fit to the experimental data.

Citation
L. J. Janik, "A Modified Sum Cauchy-Gauss Function to Fit Nonsymmetrical Bands to Infrared Internal-Reflectance Spectra," Appl. Spectrosc. 40, 661-667 (1986)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-40-5-661


Sort:  Journal  |  Reset

References

References are not available for this paper.

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited