Open AccessDensity-dependent determination of scattering properties of pharmaceutical tablets using coherent backscattering spectroscopy
Author(s) -
Annika Häffner,
Philipp Krauter,
Alwin Kienle
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.019964
Subject(s) - scattering , materials science , radiative transfer , coherent backscattering , optics , spectroscopy , focus (optics) , forward scatter , analytical chemistry (journal) , physics , chemistry , quantum mechanics , chromatography
We report on measurements of coherent backscattering from pharmaceutical tablets. Experimental data is analysed using the radiative transfer equation with focus on the determination of the reduced scattering coefficient μs'. The results show a good agreement with μs' determined by measuring the spatially resolved reflectance, whereat we demonstrate advantages of the coherent backscattering measurements. Furthermore, we present a correlation between μs' and tablet compression force, respectively density.