Title

Dynamic light scattering in localized coherence volumes

Authors

Authors

G. Popescu;A. Dogariu

Abbreviated Journal Title

Opt. Lett.

Keywords

DIFFUSING-WAVE SPECTROSCOPY; RANDOM-MEDIA; TRANSITION; Optics

Abstract

We introduce a novel light-scattering technique for investigating the dynamics of random media with a broad range of optical densities. By use of the spatial coherence properties of a single-mode optical fiber and the temporal coherence of a broadband source, the measurement volume is isolated at the end of the optical waveguide. Optical mixing between the fluctuating scattered light and the Fresnel-reflected field at the fiber-medium interface is analyzed directly in the frequency domain. The unique characteristics of this new technique are discussed in the context of simultaneous measurement of average scatterer size and concentration in dense colloidal suspensions. (C) 2001 Optical Society of America.

Journal Title

Optics Letters

Volume

26

Issue/Number

8

Publication Date

1-1-2001

Document Type

Article

Language

English

First Page

551

Last Page

553

WOS Identifier

WOS:000168222500026

ISSN

0146-9592

Share

COinS