OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy


  • Vol. 48, Iss. 12 — Dec. 1, 1994
  • pp: 1491–1497

Diffuse Reflectance Infrared Spectroscopy: Experimental Study of Nonabsorbing Materials and Comparison with Theories

Kamal Moradi, Christophe Depecker, and Jacques Corset

Applied Spectroscopy, Vol. 48, Issue 12, pp. 1491-1497 (1994)

View Full Text Article

Acrobat PDF (693 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

  • Export Citation/Save Click for help


This work presents a comprehensive study of the diffuse reflectance of nonabsorbing powders in the mid-infrared. The changes in the optical and physical parameters of the powder (particle size, granulometric distribution, powder density, refractive index) have been used to get a better understanding of the influence of each parameter on the diffusely reflected intensity, as well as the mechanisms of the light diffusion by the powder. A commercial diffuse reflectance attachment has been tested optically for the accuracy of measurements, the focalization of the incident beam at the sample surface being taken into account. The experimental results have been compared to results of existing diffusion theories. This comparison proves the pertinency of the observed variation of the intensity of the diffusely reflected light with the refractive index which increases from 0 for n = 1 to a maximum and then decreases with n. This behavior is related to the anisotropy of the light diffusion both at the inside and then at the outside of the particles and to the light trapping by total reflection inside the particles.

Kamal Moradi, Christophe Depecker, and Jacques Corset, "Diffuse Reflectance Infrared Spectroscopy: Experimental Study of Nonabsorbing Materials and Comparison with Theories," Appl. Spectrosc. 48, 1491-1497 (1994)

Sort:  Journal  |  Reset


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