Title
Dynamic light scattering in subdiffusive regimes
Abbreviated Journal Title
Appl. Optics
Keywords
DIFFUSING-WAVE-SPECTROSCOPY; RANDOM-MEDIA; PHOTON TRANSPORT; REFLECTION; LIMIT; Optics
Abstract
For describing the fluctuating signal scattered from a multiple-scattering system, diffusive-wave spectroscopy makes use of a diffusion model that provides the path-length distribution of scattered waves for a specific geometry. Using the recently introduced optical path-length spectroscopy, we show that the diffusion model fails to describe wave propagation in the low-order multiple-scattering regime. We propose a new methodology with which to obtain information about the dynamic properties of nondiffusive scattering systems. We use optical path-length spectroscopy to obtain experimentally the pathlength distribution of optical waves scattered from dynamic colloids, which are multiply scattering but not in the diffusion limit. The experimental results show that, with this new technique, the accuracy of dynamic measurements is significantly improved in subdiffusive scattering regimes. (C) 2001 Optical Society of America.
Journal Title
Applied Optics
Volume
40
Issue/Number
24
Publication Date
1-1-2001
Document Type
Article
Language
English
First Page
4215
Last Page
4221
WOS Identifier
ISSN
1559-128X
Recommended Citation
"Dynamic light scattering in subdiffusive regimes" (2001). Faculty Bibliography 2000s. 8159.
https://stars.library.ucf.edu/facultybib2000/8159