@Article{Supelec585,
author = {Nicolas Marsal and Delphine Wolfersberger and Marc Sciamanna and Germano Montemezzani},
title = {{ Noise- and dynamics-sustained instabilities in a nonlinear photorefractive system}},
journal = {Physical Review A Rapid Comm.},
year = {2010},
volume = {81},
number = {3},
pages = {031804(R)-1-4},
month = {mar},
url = {http://link.aps.org/doi/10.1103/PhysRevA.81.031804},
doi = {10.1103/PhysRevA.81.031804},
abstract = {We analyze experimentally the dynamics of optical patterns
emerging from a photorefractive two-wave mixing geometry where a
tilted single-feedback mirror generates an advectionlike effect.
Depending on the nonlocal coupling (introduced by the tilting
angle) between the two counterpropagating beams, the strength of
the nonlocal response of the nonlinear photorefractive bulk
medium, and the distance between the mirror and the crystal, we
observe the initiation of different pattern geometries, the
inversion of pattern transverse phase velocity, and the
bifurcation from convective to absolute instabilities.}
}