Applied Physics B

, Volume 82, Issue 2, pp 203–206

Soliton complexes and flat-top nonlinear modes in optical lattices


DOI: 10.1007/s00340-005-2071-3

Cite this article as:
Alexander, T. & Kivshar, Y. Appl. Phys. B (2006) 82: 203. doi:10.1007/s00340-005-2071-3


We describe a continuous analog of the quasirectangular flat-top nonlinear modes earlier found for discrete nonlinear models. We show that these novel nonlinear modes can be understood as multi-soliton complexes with either in-phase or out-of-phase neighboring solitons trapped by the periodic potential of the lattice. We demonstrate a link between the flat-top states and the truncated nonlinear Bloch waves, and discuss how these nonlinear localized modes can be monitored experimentally in photonics and Bose–Einstein condensates.

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  1. 1.Nonlinear Physics Center and Australian Center for Quantum-Atom Optics (ACQAO), Research School of Physical Sciences and EngineeringAustralian National UniversityCanberraAustralia