Open AccessDifferent reorientational regimes in a liquid crystalline medium undergoing multiple irradiation
Author(s) -
Alessandro Veltri,
Luigia Pezzi,
Antonio De Luca,
Cesare Umeton
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.001663
Subject(s) - liquid crystal , optics , irradiation , nonlinear system , elasticity (physics) , nonlinear optics , materials science , gaussian , differential equation , statistical physics , physics , thermodynamics , quantum mechanics , laser
We present a numerical approach to the nemato-elasticity differential equation in a nematic liquid crystal cell when irradiated with multiple gaussian beams. Solutions have been carried out on a configuration with two coplanar beams illuminating the sample in order to compare it with particular nonlinear phenomena experimentally studied in the past. A new set of experimental measures were realized confirming the validity of the numerical model. Solutions for an instable case showing nonlocal effects are also presented as an example of the broader class of systems this approach can describe.