Obtaining material absorption properties from remission spectra of directly illuminated, layered samples

Donald J. Dahm, Kevin Dahm, Karl H. Norris

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The effective linear absorption coefficient, K, obtained in transflection from directly illuminated samples made up of layers of thickness d, may be approximately related to the linear absorption coefficient, k, of the material making up the layers through the following empirical equations: k = [(1 - 1/2 exp(-2Kd)] K and K = [(1 + exp(-4kd)] k. The fractions of incident intensity absorbed or remitted by one layer may be modeled by assuming that that the light that moves through a sample has both the characteristics of directed and diffuse radiation.

Original languageEnglish (US)
Pages (from-to)1-13
Number of pages13
JournalJournal of Near Infrared Spectroscopy
Volume10
Issue number1
DOIs
StatePublished - Jan 1 2002

All Science Journal Classification (ASJC) codes

  • Spectroscopy

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