Physics – Optics
Scientific paper
Jul 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phrvl..55....9c&link_type=abstract
Physical Review Letters (ISSN 0031-9007), vol. 55, July 1, 1985, p. 9-12. DARPA-supported research.
Physics
Optics
12
Fluctuation Theory, Random Processes, Time Response, Wave Propagation, Arrivals, Electromagnetic Pulses, Geometrical Optics, Point Sources
Scientific paper
It is pointed out that a continuous random medium can cause an average advance of the arrival time of a pulse. This advance will occur for unsaturated and partially saturated propagation, but not in full saturation (which corresponds to the discrete-scatterer case). The effect, which is associated with Fermat's principle of least time, can be observed by measuring the difference between intensity-weighted and unweighted average arrival times.
Codona Johanan L.
Creamer D. B.
Flatte Stanley M.
Frehlich R. G.
Henyey F. S.
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