| Autor: |
Yu. V. Golembeovskii, A. N. Bogaturov, Christopher Dainty, Nicholas James Wooder, Christopher J. Solomon, Vladimir Alexeevich Myakinin |
| Rok vydání: |
1995 |
| Předmět: |
|
| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.211931 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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