Volume 50, Number 4, May II 2000
|Page(s)||460 - 465|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 September 2002|
On the speckle correlation in nonlinear random media
Laboratoire de Physique et de Modélisation de la Matière Condensée
Université Joseph Fourier-CNRS
BP 116, 38042 Grenoble cedex 9, France
Accepted: 17 March 2000
We calculate the intensity-intensity correlation functions for the light transmitted through a slab made of a nonlinear and random medium at the lowest order of the nonlinear interaction. We obtain the short-range correlation function as a function of the intensity and angles: it depends on a characteristic length of the nonlinear system. This characteristic length decribes the loss of correlation due to the phase shift through the change of the refractive index inside the nonlinear random medium.
PACS: 42.30.Ms – Speckle and moire patterns / 42.25.Dd – Wave propagation in random media
© EDP Sciences, 2000
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