Title

Propagation of a Gaussian-beam wave through a random phase screen

Authors

Authors

L. C. Andrews; R. L. Phillips;A. R. Weeks

Comments

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

Abbreviated Journal Title

Waves Random Media

Keywords

PARAXIAL OPTICAL-SYSTEMS; SCINTILLATION; STATISTICS; Physics, Multidisciplinary

Abstract

Tractable analytic expressions are developed for a variety of basic statistical quantities involving a Gaussian-beam wave propagating through a random medium confined to a portion of the propagation path between input and output planes, the limiting case of which defines a thin random phase screen. For a plane wave incident on a phase screen located midway between input and output planes, it is well known that the statistics in the receiver plane are in close agreement with those associated with a plane wave propagating through an extended random medium between input and output planes. For a similar comparison between a phase screen and extended turbulence in the case of a Gaussian-beam wave at the input plane, the present analysis reveals that the phase screen must be positioned between input and output planes differently from the plane-wave case, the position being dependent upon the Fresnel ratio of the Gaussian beam. The analytic results developed in this paper for the thin phase screen model are based on the Kolmogorov power-law spectrum for refractive-index fluctuations and the Rytov approximation. Extension of these results to multiple phase screens is also discussed.

Journal Title

Waves in Random Media

Volume

7

Issue/Number

2

Publication Date

1-1-1997

Document Type

Article

Language

English

First Page

229

Last Page

244

WOS Identifier

WOS:A1997YC55700011

ISSN

0959-7174

Share

COinS