Department of Physics Papers
Date of this Version
Physical Review E
Random walk computer simulations are reported for the electric field autocorrelation of photons transmitted through multiple-scattering slabs. The results are used as a benchmark for judging the accuracy of competing theories of diffusing-wave spectroscopy (DWS), and also for distinguishing between errors introduced from the approximation of diffusive photon transport and from the continuum approximation that the total square wave-vector transfer of a transmitted photon is proportional to its path length in the material. An important conclusion is that these errors partially cancel, giving accuracies on the order of a few percent for typical experimental situations. Detailed comparisons are made as a function of optical thickness, boundary reflectivity, as well as scattering anisotropy; guidelines are generated for optimizing the analysis of actual DWS data in terms of the dynamics of individual scattering sites.
© 1995 American Physical Society. You van view the original article at: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.51.3350
Durian, D. J. (1995). Accuracy of Diffusing-Wave Spectroscopy Theories. Physical Review E, 51 (4), 3350-3358. http://dx.doi.org/10.1103/PhysRevE.51.3350
Date Posted: 13 October 2017
This document has been peer reviewed.
At the time of publication, author Douglas J. Durian was affiliated with University of California, Los Angeles. Currently, he is a faculty member at the Physics Department at the University of Pennsylvania.