Abstract

The radiance N, resulting from an initially narrow collimated beam, propagating in the ocean, is investigated with the aid of the small-angle-scattering theory of electron scattering. The resulting expression for N is calculated approximately and compared both with experiments and numerical calculations. Various properties of the approximate expression for N are explored; an observer, located off the axis of the beam at an axial distance z from the source, who attempts to determine the direction to the source by seeking the maximum of N with respect to ray direction, would sight a point on the beam axis at a distance z/3 from the source.

© 1972 Optical Society of America

Fourth Moment of a Wave Propagating in a Random Medium*

W. P. Brown
J. Opt. Soc. Am. 62(8) 966-971 (1972)

Series Solution for Electromagnetic Wave Propagation in Radially and Axially Nonuniform Media: Geometrical-Optics Approximation

M. S. Sodha, A. K. Ghatak, and I. C. Goyal
J. Opt. Soc. Am. 62(8) 963-966 (1972)

Limiting cases of the small-angle scattering approximation solutions for the propagation of laser beams in anisotropic scattering media

Michael A. Box and Adarsh Deepak
J. Opt. Soc. Am. 71(12) 1534-1539 (1981)

Depolarization of a Laser Beam in a Turbulent Medium

E. Collett and R. Alferness
J. Opt. Soc. Am. 62(4) 529-533 (1972)

Scattering from Inhomogeneous Cylindrically Symmetric Lenses with a Line Infinity in the Index of Refraction

Nicolaos G. Alexopoulos
J. Opt. Soc. Am. 62(9) 1088-1094 (1972)