TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Oelkrug, Dieter
A1  - Boldrini, Barbara
A1  - Rebner, Karsten
T1  - Comparative Raman study of transparent and turbid materials : models and experiments in the remote sensing mode
JF  - Analytical and bioanalytical chemistry
N2  - The influence of turbidity on the Raman signal strengths of condensed matter is theoretically analyzed and measured with laboratory - scale equipment for remote sensing. The results show the quantitative dependence of back- and forward-scattered signals on the thickness and elastic-scattering properties of matter. In the extreme situation of thin, highly turbid layers, the measured Raman signal strengths exceed their transparent analogs by more than a factor of ten. The opposite behavior is found for thick layers of low turbidity, where the presence of a small amount of scatterers leads to a decrease of the measured signal. The wide range of turbidities appearing in nature is experimentally realized with stacked polymer layers and solid/liquid dispersions, and theoretically modeled by the equation of radiative transfer using the analytical diffusion approximation or random walk simulations.
KW  - Raman spectroscopy
KW  - diffuse light scattering
KW  - Monte Carlo simulations
Y1  - 2017
SN  - 1618-2642
SS  - 1618-2642
U6  - https://doi.org/10.1007/s00216-016-9582-0
DO  - https://doi.org/10.1007/s00216-016-9582-0
VL  - 409
SP  - 673
EP  - 681
S1  - 9
PB  - Springer
CY  - Berlin, Heidelberg
ER  -