A light beam propagating through a turbid medium (e.g., aerosol) can be severely attenuated by scattering losses and still retain coherence over distances comparable to particle diameters. An expression for the two-detector mutual-coherence function is rederived by means of approximations clarified by a physical model. Its spatial and temporal properties are further examined by means of a simplified physical aerosol model leading to tractable mathematical analysis.
© 1978 Optical Society of America
Original Manuscript: September 29, 1977
Published: April 15, 1978
D. A. de Wolf, "Coherence of a light beam through an optically dense turbid layer," Appl. Opt. 17, 1280-1285 (1978)