15 June 1995 Measurements of the fourth moment of the optical field using the coherence enhancement phenomenon
Author Affiliations +
The results of laboratory measurements of the spatial distribution of the four-point coherence function (fourth moment) of a spherical wave are presented. Using a special interferometric system we have illuminated a rough surface through turbulence with a coherent point source and observed the interference pattern in the source plane. Experimental data demonstrate the existence of a region where coherence enhancement after backscattering through turbulence may be observed. The time averaged intensity distribution in this region is described by the fourth moment of a spherical wave propagated through turbulence. This study demonstrates that the measurements of the fourth moment may also be applicable for estimating of the inner scale of the turbulence.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexey Nikolaevic Bogaturov, Alexey Nikolaevic Bogaturov, Christopher Dainty, Christopher Dainty, Yu. V. Golembeovskii, Yu. V. Golembeovskii, Vladimir Alexeevich Myakinin, Vladimir Alexeevich Myakinin, Christopher J. Solomon, Christopher J. Solomon, Nicholas J. Wooder, Nicholas J. Wooder, } "Measurements of the fourth moment of the optical field using the coherence enhancement phenomenon", Proc. SPIE 2471, Atmospheric Propagation and Remote Sensing IV, (15 June 1995); doi: 10.1117/12.211931; https://doi.org/10.1117/12.211931

Back to Top