Instabilities and solitons in systems with spatiotemporal dispersion

Fabio Biancalana, Celestino Creatore

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


A simple model based on the 1D nonlinear Schrodinger equation is studied, which contains both spatially and temporally dispersive terms. Parametric instabilities for plane waves are analyzed in detail, and solitary waves (both bright and dark) are found. The model presented here is able to describe the non-trivial unstable dynamics of intense, nonlinear light propagation near a material resonance in presence of negative spatial dispersion. We provide as a practical example the light propagation near the tail of an exciton-polariton resonance in a specially designed semiconductor superlattice. (C) 2008 Optical Society of America.

Original languageEnglish
Pages (from-to)14882-14893
Number of pages12
JournalOptics Express
Issue number19
Publication statusPublished - 15 Sept 2008


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