Accession Number : ADA261303

Title :   Loss of Temporal Coherence of Laser Light Propagated Through Simulated Coastal Waters.

Descriptive Note : Interim rept. FY92,

Corporate Author : COASTAL SYSTEMS STATION PANAMA CITY FL

Personal Author(s) : Swanson, N. L.

Report Date : JAN 1993

Pagination or Media Count : 26

Abstract : Research is currently underway to investigate the physical mechanisms that cause loss of temporal coherence in scattered light. The results of experiments that measure coherence length versus temperature, optical path length, and water quality are reported. It is shown that the loss of temporal coherence is caused by spectral broadening. Based on these results and research into the causes of spectral broadening, experiments are proposed to measure each type of broadening mechanism, with a much higher degree of accuracy.

Descriptors :   *LIGHT SCATTERING, *SEA WATER, *LASER BEAMS, COHERENCE, LENGTH, OPTICAL ANALYSIS, PATHS, TEMPERATURE, WATER QUALITY, OPTICAL PROPERTIES, PARTICLES, TURBIDITY, BROWNIAN MOTION, SPECTRAL LINES, PROPAGATION.

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE