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Title: Phase twisted modes and current reversals in a lattice model of waveguide arrays with nonlinear coupling

Journal Article · · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
;  [1]
  1. Department of Physics and Measurement Technology (IFM), Linkoeping University, S-581 83 Linkoeping (Sweden)

We consider a lattice model for waveguide arrays embedded in nonlinear Kerr media. Inclusion of nonlinear coupling results in many phenomena involving complex, phase-twisted, stationary modes. The norm (Poynting power) current of stable plane-wave solutions can be controlled in magnitude and direction, and may be reversed without symmetry-breaking perturbations. Also stable localized phase-twisted modes with zero current exist, which for particular parameter values may be compact and expressed analytically. The model also describes coupled Bose-Einstein condensates.

OSTI ID:
20641319
Journal Information:
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 71, Issue 2; Other Information: DOI: 10.1103/PhysRevE.71.025601; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-651X
Country of Publication:
United States
Language:
English