relation between scattering coefficient and diffuse reflectance?
how can we find absorption coefficient from Kubleka Munk function?
you can see the following links:
1. https://www.sciencedirect.com/topics/engineering/kubelka-munk-theory
2. https://www.sciencedirect.com/science/article/abs/pii/S0143720815004878
about relation between scattering coefficient and diffuse reflectance, you can see the following links:
1. Article Influence of diffuse reflectance measurement accuracy on the...
2. Article Effect of Scattering Coefficient on Diffuse Reflectance Infr...
Dear Swathi,
Thats an interesting question, however the Kubelk-Munk Function has been derived upon using a couple of assumptions, which are
•Diffuse radiation
•Suppression of the regular reflection
•Approximately spherical particles with d >> than the wavelength of the incident light
•Weak bands in a non-absorbing matrix
•No overlapping of bands
•Infinite layer thickness
What you need is to determine the ratio A/S = (1-R)^2/2R, whereby R is the diffuse scattering, A is the absorption, and S can be estimated from the particle size of the powder sample according to
S ~ 1/grain size ~ 1/d50 [cm-1]
More details can be found in the work of Dieter Oelkrug in Zeitschrift fur Naturforschung a, January 1964, DOI: 10.1515/zna-1964-010
Hope that helps a bit,
Thomas
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