ROLL-HEXAGON TRANSITION IN A KERR-LIKE EXPERIMENT

Authors
PAMPALONI E RESIDORI S ARECCHI FT
Citation
E. Pampaloni et al., ROLL-HEXAGON TRANSITION IN A KERR-LIKE EXPERIMENT, Europhysics letters, 24(8), 1993, pp. 647-652
Citations number
17
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
24
Issue
8
Year of publication
1993
Pages
647 - 652
Database
ISI
SICI code
0295-5075(1993)24:8<647:RTIAKE>2.0.ZU;2-E
Abstract
A transition between hexagons and rolls is observed in an optical diff ractive system containing a LCLV acting as a Kerr-like non-linearity. A rotation of 180 degrees in the optical feedback is responsible for t he appearance of new stable structures as negative hexagons and rolls. The stability of the different patterns is discussed by means of a si mple model based on coupled normal form equations.