Title

Polarization Asymmetry In Waves Backscattering From Highly Absorbant Random Media

Authors

Authors

A. Dogariu; M. Dogariu; K. Richardson; S. D. Jacobs;G. D. Boreman

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Appl. Optics

Keywords

LIGHT-SCATTERING; Optics

Abstract

Within the range in which light penetration depth is approximately the same as or less than the diameter of the particles in the medium, particulate media with considerable absorption behave as two-dimensional, rough-surface structures. As penetration depth increases, a complicated transition between volume and surface effects is seen. For these media, low-order scattering sequences have small spatial extent, making observation of polarization characteristics difficult. We present an experimental technique to access the low-order scattered photons by artificially reinjecting them through total internal reflections. Using a dielectric layer in contact with the high-absorption medium, we are able to observe fourfold polarization asymmetry in backscattering from highly absorbant media. We discuss the origin of the polarization patterns in a ray-optics approximation and suggest possibilities for solving practical problems encountered in characterizing composites with appreciable absorption. (C) 1997 Optical Society of America.

Journal Title

Applied Optics

Volume

36

Issue/Number

31

Publication Date

1-1-1997

Document Type

Article

Language

English

First Page

8159

Last Page

8164

WOS Identifier

WOS:A1997YD65900012

ISSN

0003-6935

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