Title: Gap and dark solitons in discrete photorefractive media with intensity-resonant nonlinearity
Authors: Stepić, M.
Maluckov, A.
Kip, Detlef  
Language: en
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik
Issue Date: Jun-2009
Publisher: Springer
Document Type: Article
Journal / Series / Working Paper (HSU): Applied Physics B Lasers and optics 
Volume: 95
Issue: 3
Page Start: 525
Page End: 530
Publisher Place: Berlin
Abstract: 
Light propagation in one-dimensional nonlinear waveguide arrays with self-defocusing intensity-resonant nonlinearity is investigated theoretically. We study thoroughly conditions for existence and stability of both gap and discrete dark solitons. According to the linear stability analysis both fundamental types (on-site and intersite) of gap solitons may be stable. Discrete dark solitons are unstable except in the low-power regime and, depending on system parameters, evolve into either gray solitons, breathers, or background radiation. Mobility of these solitons is analyzed by the free energy concept: gap solitons are immobile but dark solitons can be easily set in motion. © 2009 Springer-Verlag.
Organization Units (connected with the publication): Technische Universität Clausthal
URL: https://api.elsevier.com/content/abstract/scopus_id/67349238664
ISSN: 09462171
DOI: 10.1007/s00340-009-3400-8
Appears in Collections:Publications of the HSU Researchers (before HSU)

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