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

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited