OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy

| PUBLISHED BY SAS — AVAILABLE FROM SAS AND OSA

  • Vol. 56, Iss. 11 — Nov. 1, 2002
  • pp: 1397–1402

Extinction Coefficient Determination of Polymeric Materials and Their Use in the Optical Characterization of Infrared Microscopes: A Preliminary Investigation into Quantitative Infrared Microspectroscopy

Louis G. Tisinger and André J. Sommer

Applied Spectroscopy, Vol. 56, Issue 11, pp. 1397-1402 (2002)


View Full Text Article

Acrobat PDF (174 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

A comparison of infrared spectra collected in both a macro sample configuration and on a microscope accessory was conducted. The results of this comparison demonstrated that as the microscope aperture was reduced, absorbance values increased for a given polymer film by as much as 33% as compared to the same data collected in the corresponding macro experiment. A detailed evaluation of the optical pathlength for both the micro and macro configurations was conducted. Results of this evaluation and that of detector nonlinearity showed that the latter effect was most problematic. During the course of the investigation the average angle of light traversing through the objective was determined for several infrared microscopes. Further analysis indicated that changing the aperture size of the microscope can have significant influence on the absorbance values obtained. In addition, extinction coefficients of poly(methyl methacrylate), polystyrene, poly(vinyl acetate), polycarbonate, and poly(ethylene terephthalate) were determined using macro FT-IR spectroscopy.

Citation
Louis G. Tisinger and André J. Sommer, "Extinction Coefficient Determination of Polymeric Materials and Their Use in the Optical Characterization of Infrared Microscopes: A Preliminary Investigation into Quantitative Infrared Microspectroscopy," Appl. Spectrosc. 56, 1397-1402 (2002)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-56-11-1397


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