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Proceedings Paper

Experimental study of coherence enhancement effects after backscattering from rough surfaces through turbulence
Author(s): Vladimir Alexeevich Myakinin; Christopher J. Solomon
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Paper Abstract

The phenomenon of coherence enhancement after double passage propagation through turbulence has previously been experimentally observed for a system comprising of a mirror illuminated by two point-sources. The degree of coherence enhancement obtained was increased significantly in an experiment which manipulated the polarization states of the illumination and reflected light. The physical nature of this phenomenon consists basically in the appearance of correlation in the backscattered field in regions around the illumination sources. Essentially it is a result of reciprocity--any optical paths through the turbulence which begins at one source and ends on the other has its' corresponding partner which traverses the same paths in the same direction. Accordingly, we can expect from simple physical considerations that the same effect of coherence enhancement may be observed after backscattering from optically rough surfaces. In this report, we present results of experimental investigation of this phenomenon and describe an experimental system that demonstrates the phenomenon of coherence enhancement after backscattering from rough surface through turbulence.

Paper Details

Date Published: 29 June 1994
PDF: 8 pages
Proc. SPIE 2222, Atmospheric Propagation and Remote Sensing III, (29 June 1994); doi: 10.1117/12.178040
Show Author Affiliations
Vladimir Alexeevich Myakinin, Institute of Atmospheric Physics (Russia)
Christopher J. Solomon, Imperial College of Science, Technology and Medicine (United Kingdom)

Published in SPIE Proceedings Vol. 2222:
Atmospheric Propagation and Remote Sensing III
Walter A. Flood; Walter B. Miller, Editor(s)

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