Title :
Spatiotemporal instabilities induced by spatial nonuniformities in a nematic liquid crystal with optical feedback
Author :
Szwaj, C. ; Glorieux, P. ; Louvergneaux, E.
Author_Institution :
Lab. de Phys. des Lasers, Univ. des Sci. et Tech. de Lille, Villeneuve d´Ascq, France
Abstract :
Summary form only given. A nematic liquid crystal, used as a nonlinear Kerr medium, exhibits spatiotemporal structures when inserted into an optical feedback loop and pumped by a laser. At instability threshold hexagons appear for large aspect ratio. However, outside these peculiar conditions complex dynamics take place.
Keywords :
laser beam effects; liquid crystal devices; nematic liquid crystals; optical Kerr effect; optical feedback; stability; complex dynamics; hexagons; instability threshold; large aspect ratio; nematic liquid crystal; nonlinear Kerr medium; optical feedback; optical feedback loop; optical pumping; spatial nonuniformities; spatiotemporal instabilities; spatiotemporal structures; Atom optics; Bifurcation; Chaos; Microstrip; Nonlinear optics; Optical feedback; Optical pumping; Shape; Spatiotemporal phenomena; Stability analysis;
Conference_Titel :
Quantum Electronics Conference, 2000. Conference Digest. 2000 International
Conference_Location :
Nice, France
Print_ISBN :
0-7803-6318-3
DOI :
10.1109/IQEC.2000.907807
