Abstract

The effect of a large spatial correlation in a scattering medium on the spatial coherence of the scattered field is presented. Theoretical curves are calculated for a specific form of the correlation function of the dielectric susceptibility. It is shown that when the spot size of the incoming coherent light is of the same order as the correlation length of fluctuations a sudden increase in the spatial coherence of the scattered light occurs. The method is applied to the study of the correlation length in a liquid crystal cell under a dc electric field.

© 1976 Optical Society of America

Spatial coherence properties of light scattered by disclinations in a liquid crystal

M. Bertolotti, F. Scudieri, A. Ferrarri, and D. Apostol
Appl. Opt. 15(10) 2468-2470 (1976)

Light Scattered by a Liquid Crystal: a New Quasi-Thermal Source

F. Scudieri, M. Bertolotti, and R. Bartolino
Appl. Opt. 13(1) 181-185 (1974)

Enhanced fluctuations in radiation scattered by a moving random phase screen

E. Jakeman, J. G. McWhirter, and P. N. Pusey
J. Opt. Soc. Am. 66(11) 1175-1182 (1976)

Anomalous light scattering in liquid sulfur at the polymerization transition

Margherita Zanini and Jan Tauc
Appl. Opt. 15(12) 3149-3154 (1976)

An analysis of the spatial coherence of laser light scattered from a surface with two scales of roughness*

J. Carl Leader
J. Opt. Soc. Am. 66(6) 536-546 (1976)