2005/09/30 by Andrea Fratalocchi, Gaetano Assanto · 1 citation
Physics and Astronomy · #nlin.PS #physics.optics
paper · pdf · doi:10.1103/physreve.72.066608
Extended version with 6 pages and 4 Figures, to appear in Phys. Rev. E
arxiv created 2005/11/09 · arxiv updated 2009/12/01
We model discrete spatial solitons in a periodic nonlinear medium encompassing any degree of transverse non locality. Making a convenient reference to a widely used material -nematic liquid crystals-, we derive a new form of the discrete nonlinear Schrodinger equation and find a novel family of discrete solitons. Such self-localized solutions in optical lattices can exist with an arbitrary degree of imprinted chirp and a have breathing character. We verify numerically that both local and non local discrete light propagation and solitons can be observed in liquid crystalline arrays.