@InProceedings{Supelec405,
author = {Nicolas Marsal and Germano Montemezzani and Delphine Wolfersberger and Marc Sciamanna and Dragomir Neshev},
title = {{Control of patterns formation in a single feedback system by photonic bandgap structures}},
year = {2008},
booktitle = {{Proceedings of SPIE : Photonic Crystal Materials and Devices VIII}},
volume = {6989},
number = {0S},
pages = {1-8},
month = {apr},
address = {Strasbourg (France)},
url = {http://dx.doi.org/10.1117/12.780969},
doi = {10.1117/12.780969},
abstract = {We present the observation of the manipulation of modulational
instability in a nonlinear dissipative system by a periodic
photonic lattice. We use a setup based on a photorefractive
BaTiO3 crystal in a single feedback mirror configuration leading
to the formation of hexagonal patterns. Additionally, we impose
an optical lattice to induce one or two-dimensional photonic
band-gap structures with variable parameters. We show that by
varying the lattice periodicity, thus adjusting the transverse
spatial frequencies associated to the bandgap, we can induce
patterns of particular symmetry or suppress the modulational
instability when the position of the lattice bandgap coincides
with the instability gain.}
}