@inproceedings{c75b3ad3b8ba428d848a4e62d3312723,
title = "Observation of speckle instability in Kerr random media",
abstract = "The first experimental evidence of speckle instability is realized by using a liquid crystal cell with a photosensitive wall. The light is transversally scattered in the liquid crystal cell, where a two-dimensional controlled disorder is imprinted through suitable illuminations of the photoconductive wall and the nonlinearity is obtained through optical reorientation of the liquid crystal molecules. Above a critical threshold of the input intensity, the speckle pattern starts spontaneously to oscillate with a characteristic frequency related to the response time of the nonlinear medium. Moreover, the oscillation threshold depends on the scattering mean free path, thus, confirming the crucial role played by disorder in inducing the instability.",
keywords = "Optical instabilities, disorder, liquid crystals, orientational Kerr effect, speckle instability",
author = "S. Residori and U. Bortolozzo and P. Sebbah",
year = "2012",
doi = "https://doi.org/10.1117/12.909226",
language = "الإنجليزيّة",
isbn = "9780819489173",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Complex Light and Optical Forces VI",
note = "Complex Light and Optical Forces VI ; Conference date: 25-01-2012 Through 26-01-2012",
}